1. Learn
  2. User Resources
  3. EOSDIS Acronym and Symbol List

EOSDIS Acronym and Symbol List


Acronym/Symbol Definition More Information
3ROX Three Rivers Optical Exchange
3S Small Satellite System, Suite de Systeme SPOT, SPOT Successor System
A Back to top
AAC ABoVE Airborne Campaign
AAOE Airborne Antarctic Ozone Experiment
aaS as a Service
AATSR Advanced Along-Track Scanning Radiometer
ABBA Arctic Boreal Burned Area
ABI Advanced Baseline Imager
ABoVE Arctic Boreal Vulnerability Experiment
ABRACOS Anglo-Brazilian Amazonian Climate Observation Study
ACCESS Advancing Collaborative Connections for Earth System Science program
ACEP ABoVE Concise Experiment Plan
ACEPOL Aerosol Characterization from Polarimeter and LIDAR
ACES Anthropogenic Carbon Emissions System
ACL Access Control List
ACOUSTICS Automated Classification of GES DISC User Support Tickets
ACR Active Cavity Radiometer
ACRIM Active Cavity Radiometer Irradiance Monitor
ACRIMSAT Active Cavity Radiometer Irradiance Monitor Satellite
ACRS/TLAS Automated Conflict Resolution System/TDRSS Look Angle System
ACSI American Customer Satisfaction Index *commonly referred to as ACSI
ACSPO Advanced Clear-Sky Processor for Ocean
ACT-America Atmospheric Carbon and Transport–America
ACTIVATE Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment
ACTS Advanced Communication Technology Satellite
ADC Affiliated Data Center
ADCP Acoustic Doppler Current Profiler
ADEO Advanced Earth Observing Satellite
ADEOS Advanced Earth Observing System
ADM Atmospherics Dynamics Mission
ADMG Airborne Data Management Group
ADN ASTER Data Network
ADRG ARC-Digitized Raster Graphics
ADS40 Airborne Digital Sensor 40
ADSL Asymmetric Digital Subscriber Line
ADURD Archiving, Distribution and User Services Requirements Document
AEB Agencia Espacial Brasileira
AEM-2 Application Explorer Mission-2
AERI Atmospheric Emitted Radiance Interferometer
AERONET Aerosol Robotic Network
AES Atmospheric Environmental Service
AESICS ASTER Emergency Scheduling Interface and Control System
AfriSAR Africa SAR
AGAGE Advanced Global Atmospheric Gases Experiment
AGB Aboveground Biomass
AGI Advanced Global Imager
AGS Alaska Ground Station
AGU American Geophysical Union *commonly referred to as AGU
AHAP Alaska High-Altitude aerial Photography
AIAA American Institute of Aeronautics and Astronautics
AICC Alaskan Interagency Coordination Center
AIMs Africover Interpretation and Mapping System
AIMS Airborne Integrated Mapping System
AIR Airborne Imaging Radar
AIRGrav Airborne Gravity
AirMISR Airborne Multi-Angle Imaging Spectroradiometer
AirMOSS Airborne Microwave Observatory of Subcanopy and Subsurface
AirMSPI Airborne Multi-angle Spectro Polarimetric Imager
AIRS Atmospheric Infrared Sounder
AIRSAR Aircraft Synthetic Aperture Radar
AirSWOT Airborne Surface Water and Ocean Topography
ALEXIS Array of Low Energy X-Ray Imaging Sensors
ALI Advanced Land Imager
ALOS Advanced Land Observation Satellite
ALS Aerial (Airborne) Laser Scanning
ALTM Airborne Laser Terrain Mapper
ALTMS Airborne LIDAR Topographic Mapping System
AM Automated Mapping
AMAPS Aerosol Measurement and Processing System
AM/FM Automated Mapping/Facilities Management
AMI Amazon Machine Image
AMI Active Microwave Imager
AMI SAR Active Microwave Imager Synthetic Aperture Radar
AMPR Advanced Microwave Precipitation Radiometer
AMPS Automatic Mapping and Planning System
AMR Altimetry Microwave Radiometer
AMR-C Advanced Microwave Radiometer-C
AMRIR Advanced Medium Resolution Imaging Radiometer
AMS American Meteorological Society
AMSD Adjusted Mapping Support Data
AMSR Advanced Microwave Scanning Radiometer
AMSR-CU Advanced Microwave Scanning Radiometer - Control Unit
AMSR-E Advanced Microwave Scanning Radiometer for EOS
AMSR-SU Advanced Microwave Scanning Radiometer - Sensor Unit
AMSU Advanced Microwave Sounding Unit
AMSU-A1 AMSU-A1 Module - Receives V and W Band Frequencies on Channels 3-15
AMSU-A2 AMSU-A2 Module - Receives K and Ka Band Frequencies on Channels 1 & 2
AMSU-B Advanced Microwave Sounding Unit-B (Earlier MHS, Became HSB)
AMTS Advanced Moisture and Temperature Sounder
ANGe Archive Next Generation
ANOVA Analysis of Variance
AO Announcement of Opportunity
AOIPS Atmospheric and Oceanographic Image Processing System
AOL Airborne Oceanographic LIDAR
AOLP Angle Of Linear Polarization
AOPP Atmospheric, Oceanic and Planetary Physics
AOS ASTER Operation Segment
AOSP Advanced On-Board Signal Processor
APAN Asia Pacific Area Network
APAR Absorbed Photosynthetic Active Radiation
APCM Aerial Photography Contract Management System
API Application programming interface
APID Application Process Identifier
AppEEARS Application for Extracting and Exploring Analysis Ready Samples
APR-3 Airborne Precipitation Radar 3rd Generation
APT Automatic Picture Transmission
APU Autonomous Parsivel Unit
AQT Association Québecoise de Télédétection
AQUA Automated Data Query and Access *as opposed to the Aqua satellite
ARA Atmospheric Radiation Analysis
ARB 48" LIDAR Aerosol Reserach Branch
ARC Analysis and Review of CMR
ARC Ames Research Center DO NOT USE (per NASA Style Guide)
ARESE ARM (Atmospheric Radiation Measurement) Enhanced Shortwave Experiment
ARGOS Argos Data Collection and Position Location System
ARIN American Registry of Internet Names
ARISTOTELES Applications and Research Involving Space Technologies Observing The Earths' field from Low Earth orbiting Satellite
ARMAS Automated Radiation Measurements for Aerospace Safety
ARMSAT Atmospheric Radiation Measurement Satellite
ARSET Applied Remote Sensing Training
ARVI Atmospherically Resistant Vegetation Index
AS Access Subgroup (Part of CEOS-WGISS)
ASAR Advanced Synthetic Aperture Radar
ASAS Advanced Solid-State Array Spectrometer
ASC Agence Spatiale Canadienne
ASCA Advanced Satellite for Cosmology and Astrophysics
ASCAT Advanced Scatterometer
ASCIE American Standard Code for Information Exchange
ASCII American Standard Code for Information Interchange
ASDC Atmospheric Science Data Center
ASF Alaska Satellite Facility
ASF DAAC Alaska Satellite Facility Distributed Active Archive Center
ASFUWG ASF User Working Group
ASI Agenzia Spaziale Italiana (Italian Space Agency)
ASIRAS Airborne synthetic aperture radar (SAR)/Interferometric Radar Altimeter System
ASIS Aggregation of Services for Ice Sheets
ASIM Atmosphere-Space Interactions Monitor
ASM Acquisition Strategy Meeting
ASO Airborne Snow Observatory
ASP Alaska SAR Processor
ASTER Advanced Spaceborne Thermal Emission and Reflection Radiometer
ATBD Algorithm Theoretical Basis Document
ATDRSS Advanced Tracking and Data Relay Satellite System
ATES Alcatel Espace Systems
ATHOS Airborne Troposhperic Hydrogen Oxides Sensor
ATLAS Advanced Thermal and Land Applications Sensor
ATLID Atmospheric LIDAR
ATM Asynchronous Transfer Mode
ATMOS Atmospheric Observations Satellite (Trace Molecules Observed by Spectroscopy)
ATMS Advanced Technology Microwave Sounder
ATom Atmospheric Tomography mission
ATOST Atlantic - THORpex Observing System Test
ATR1 Automatic Target Recognition Module (Leica)
ATS Advanced Technology Satellite
ATSR Along Track Scanning Radiometer (ESA ERS)
ATTREX Airborne Tropical TRopopause EXperiment
AVHRR Advanced Very High-Resolution Radiometer
AVHRR GAC AVHRR Global Coverage Area
AVHRR LAC AVHRR Local Area Coverage
AVIRIS Airborne Visible and Infrared Imaging Spectrometer
AVIS Airborne Vegetation Index Sensor
AVNIR Advanced Visible and Near-Infrared Radiometer
A tool for monitoring and forecasting Available Water Resource in mountain environment
AWiFS Advanced Wide Field Sensor
AWOTS Automated Wallops Orbital Tracking Station
AXCTD Airborne eXpendable Conductivity Temperature Depth
B Back to top
bbFTS BaBar File Transfer Protocol
BDRF Bidirectional Reflectance Distribution Function
BEDI Big Earth Data Initiative
BERT Bidirectional Encoder Representations from Transformers
BGP Boundary Gateway Protocol
BIH Bureau International de l’Heure
BIPM Bureau International des Poids et Mesures
BNSC British National Space Centre (UK)
BOREAS Boreal Ecosystem-Atmosphere Study
BRDF Bi-directional Reflectance Distribution Function
BSDSS Border Spatial Decision Support System
BUFR Binary Universal Form for the Representation of meteorological data
BWC Bandwidth Compression
BWE Bandwidth Expansion
C Back to top
C5/6 Collection 5/6 MODIS data
C-MARE Central Mediterranean Aerosol and Radiation Experiment
C-STAR Conically Scanning Two-Look Airborne Radiometer
CaaS Cloud as a Service
CADU Channel Access Data Units
CAFS CCD Actinic Flux Spectroradiometers
CAL WG Calibration Working Group
CAL/VAL Calibration/Validation
CALIOP Cloud-Aerosol LIDAR and with Orthogonal Polarization
CALIPSO Cloud-Aerosol LIDAR and Infrared Pathfinder Satellite Observation
CalREN California Research and Education Network
CALS Cloud and Aerosol LIDAR System
CAMBOT Continuous Airborne Mapping By Optical Translator
CAMEL Combined ASTER and MODIS Emissivity database over Land
CAMEX Convection and Moisture Experiment
CAMP2EX Cloud, Aerosol and Monsoon Processes Philippines Experiment
CanSISE Canadian Sea Ice and Snow Evolution
CAP Combined Active Passive
CARVE Carbon in Arctic Reservoirs Vulnerability Experiment
CATS Cloud-Aerosol Transport System
CBC Cypher Block Chaining
CBERS China-Brazil Earth Resources Satellite Program
CCAN Coupled Carbon and Nitrogen
CCB Configuration Control Board
CCD Charged-Coupled Device
CCMODS Collaborative Climate Model and Observational Data Services
CCRS Canada Centre for Remote Sensing
CCSDS Consultative Committee for Space Data Systems
CD/CI Continuous Development/Continuous Integration
CDAS Command and Data Acquisition Station
CDB Command Data Block
CDDIS Crustal Dynamics Data Information System
CDF Common Data Format
CDI Climate Data Initiative
CDIAC Carbon Dioxide Information and Analysis Center (DOE/ORNL)
CDM Continuous Diganosis and Mitigation
CDMS Cryospheric Data Management System (NSIDC)

Content Delivery Network


Colored Dissolved Organic Matter

CDR Critical Design Reviews
CDRC CIESIN Data and Research Center
CEES Committee on Environment and Natural Resources Research
CEMSCS Central Environmental Monitoring Satellite Computer System (NOAA)
CEMSDS Central Environmental Satellite Data System
CEO European Centre for Earth Observation
CEOS Committee on Earth Observation Satellites
CEOSWGD/CS CEOS Working Group on Data, Catalog Subgroup
CERES Clouds and the Earth's Radiant Energy System
CERR Critical Events Readiness Review
CESA Conical Earth Sensor Assembly
CESBIO Centre d’ Études Spatiales de la Biosphère (France)
CESDIS Center for Excellence in Space Data and Information Sciences

Community Earth System Model 1 - Large Ensemble

CESM2 Community Earth System Model 2
CFC Chlorofluorocarbon
CFI Claes Fornell International
CGF Cloud-Gap Filled
CHIRP Climate Hyperspectral Infrared Radiance Project
CIESIN Consortium for International Earth Science Information Network
CIMS Chemical Ionization Mass Spectrometer
CIMSS Cooperative Institute for Meteorological Satellite Studies
CINTEX CEOS Catalogue Interoperability Experiment
CIR Color Infrared
CIRPAS Center for Interdisciplinary Remotely Piloted Aircraft Studies
CIRS Composition Infrared Spectrometer
CIS Cryogenic Interferometer Spectrometer
CIT-CIMS Caltech Chemical Ionization Mass Spectrometer
CIWG Catalog Interoperability Working Group
CL Command Language
CLAES Cryogenic Limb Array Etalon Spectrometer
CLAMS Cheasapeake Lighthouse and Aircraft Measurements for Satellites
CLASIC Cloud and Land Surface Interaction Campaign
CLCW Command Link Control Word
CLIMCAPS Community Long-term Infrared Microwave Coupled Product System
CLSM Catchment Land Surface Model
CM Configuration Management
CMAQ Community Multi-scale Air Quality
CMG Climate modeling grid
CMIS Conical Scanning Microwave Imager/Sounder
CMO Configuration Management Office
CMP Common Midpoint
CMP Cloud Management Platform
CMR Common Metadata Repository
CMS Carbon Monitoring System
CNES Centre National d’Études Spatiales (France)
CNR Consiglio Nazionale delle Ricerche (Italy)
CNRS Centre National de la Recherche Scientifique (France)
CO Contracting Officer
COARE Continental Ocean-Atmosphere Regional Experiment
CODMAC Committee on Data Management, Archiving, and Computing
COG Cloud Optomized GeoTIFF
COMMGR Communications Manager
CONAE Comision National de Actividades Espaciales
CONUS Conterminous United States *commonly referred to as CONUS
CORAL Coral Reef Airborne Laboratory
CORINE Coordination of Information on Environment
COS Constellation Operations System
COSMIC Computer Software Management and Information Center (NASA)
CoSMIR Conical Scanning Millimeter-wave Imaging Radiometer
COSMO/SkyMed Constellation of Small satellites for the Mediterranean basin Observation
COSPAR Congress for Space Research
COTR Contracting Officer’s Technical Representative
COTS Commercial Off-The Shelf
CPEX Convective Processes Experiment
CPI Cloud Particle Imager
CPL Cloud Physics lidar
CPP Cloud Photopolarimeter
CPR Cloud Profiling Radar
CR Correlation Radiometer
CReSIS Center for Remote Sensing of Ice Sheets
CRI Coastal Resolution Improvement
CrIMSS Cross-track Infrared and Advanced Technology Microwave Sounders
CrIS Cross-track Infrared Sounder
CRISTA/SPAS Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere/ Shuttle Pallet Satellite
CRL Compact Raman Lidar
CRP Command Relay Processor
CRREL Cold Regions Research and Engineering Laboratory
CRSS Canadian Remote Sensing Society
CRYSYS Cryospheric System
CSA Canadian Space Agency
CSDGM Content Standard for Digital Geospatial Metadata
CSESP Citizen Science for Earth Systems Program
CSIRO Commonwealth Scientific and Industrial Research Organization (Australia)
CSLC California Space Launch Complex
CSMA/CD Carrier-Sense Multiple-Access With Collision Detection
CSP Cloud Service Provider
CSPO Compute Service Program Office
CSS Cascading Style Sheet
CSWR Center for Severe Weather Research
CTD Conductivity, Temperature, and Depth
CTGNSS Cyclone Global Navigation Satellite System
CTM Chemical Transport Model
CV Cube Visualization
CVO Climate Virtual Observatory
CVA Change Vector Analysis
CWIC CEOS WGISS Integrated Catalog
CYGNSS Cyclone Global Navigation Satellite System
CZCS Coastal Zone Color Scanner (Nimbus-7)
D Back to top
D3R Dual-frequency Dual-polarized Doppler Radar
DAAC Distributed Active Archive Center
DaaS Desktop as a Service
DADS Data Archive and Distribution System
DAF Data Archive Facility
DAIS-1 Digital Airborne Imagery System
DAR Data Acquisition Request
DAS Data Analysis Subsystem
DASF Directional Area Scattering Function
DAWN Doppler Aerosol WiNd
DBaaS Database as a Service
DCaaS Datacenter as a Service
DCN Document Change Notice
DCOTTS Dynamics and Chemistry of the Summer Stratosphere
DCS Data Collection System
DDL Direct Downlink
DDM Digital Displacement Model
DDMI Delay-Doppler Mapping Instrument
DEL Data Evaluation Laboratory

Delta Exchange

DEM Digital Elevation Model
DEM-G Digital Elevation Model - Graphic (coordinates)
DEM-P Digital Elevation Model - Planar (coordinates)
DEMEX Alternate name for the ASTER GDEM Explorer
DFCD Data Format Control Document
DFRD Data Format Requirements Document
DGDF Digital Geospatial Data Files
DGPS Differential Global Positioning System; Differential Global Positioning Satellite
DHCP Dynamic Host Configuration Protocol
DHF Data Handling Facility
DIAL Differential Absorption Lidar
DIF Directory Interchange Format
difSAR Differential SAR
DIGCAT Digital Catalogue
DIGEST Digital Geographic Information Exchange Standard
dis-ALEXI ALEXI disaggregate algorithm
DISC Data and Information Services Center
DISCOVER-AQ Deriving Information on Surface conditions from Column and VERtically Resolved Observations Relevant to Air Quality
DIT Development Integration and Testing
DLG Digital Line Graph
DLH Diode Laser Hygrometer
DLR Deutsches Zentrum für Luft- und Raumfahrt (German Aerospace Agency)
DLS Dynamic Limb Sounder
DMO DEM and Orthorectified
DMR Detailed Mission Requirements
DMSP Defense Meteorological Satellite Program
DMZ Demilitarized Zone
DNB Day/Night Band
DNS Domain Name Service
DOI Digital Object Identifier *used as both DOI and doi
DOLP Degree Of Linear Polarization
DOQ Digital Orthophoto Quadrangle
DORIS Doppler Orbitography and Radiopositioning Integrated By Satellite
DOW Doppler on Wheels
DPR Dual Precipitation Radar
DR Decommissioning Review
DRG Digital Raster Graphic
DRR Disposal Readiness Review
DRSS Data Relay Satellite System
DSCOVR Deep Change Observation Mission
DSR Downward Shortwave Radiation
DTED Digital Terrain Elevation Data
DTM Digital Terrain Model
DUE DAAC Unique Extension
DWL Doppler Wind LIDAR
DWS Doppler Wind Sensor
E Back to top
E-ISAT EOSDIS Internet Security Assessment Team
E-LIDAR Experimental LIDAR
EARLSeL European Association of Remote Sensing Laboratories
EarthCARE Earth Clouds Aerosols and Radiation Explorer
EAS Electrical Accommodation Subsystem (Terra AM-1)
EASE-Grid Equal-Area Scalable Earth Grid
EBAF Energy Balanced and Filled
EBnet EOSDIS Backbone network
EBS EOS Broadcast Stations
EC European Community
EC2 Amazon Elastic Compute Cloud
ECA Earth Central Angle
ECC Earthdata Code Collaborative
ECCO Estimating the Circulation and Climate of the Ocean
ECE Earthdata Collaboration Environment
ECHO EOS Clearing House
ECMP ECS Configuration Management Plan
ECMWF European Center for Medium-range Weather Forecasting
ECOM EOSDIS Communications System
ECOSTRESS ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station *capitalize first three letters of ecosystem
ECRB EOS Configuration Review Board
ECRS ESDIS Consolidated Requirements System
ECS EOSDIS Core System
ECSS EOS Common Spacecraft Specification
ECSTVP ECS Test and Verification Procedures
ECSVDB ECS Verification Database
ECT EOS Compatibility Test
ED50 European Datum 1950
EDC Earth Resources Observation and Science (EROS) Data Center (USGS)
EDF ECS Development Facility
EDG EOS Data Gateway (V0 Client – Replacement of B0SOT)
EDGRS Earth Data Gathering and Reporting System
EDHS ECS Data Handling System
EDMA ESDIS Data Model Analysis
EDOCS EOS Data Operations and Communications System
EDOS EOS Data and Operations System
EDP Earthdata Development Portal
EDS Expedited Data Sets
EDSC Earthdata Search Client
EDU EDOS Data Unit
EE Earth Explorer
EECF Earthnet ERS-1 Central Facility
EED EOSDIS Evolution and Development
EEID EOSDIS External Interface Document
EER External Engineering Review
EETS EOS Electronic Transfer System
EFS Elastic File System
EGI ESI Gateway Interface
EGIG Expéditions Glaciologiques Internationales au Groenland
EGS EOS Ground Station
EGT EOSDIS Ground Terminal
EGTS EOS Ground Test System
EIN ECS Identification Number
EIONET European Environment Information and Observation Network
EIT EOSDIS Integration Team
EITSO ESDIS Information Technology Security Official
ELANOR Earth Limb And Nadir Operational Retrieval
ELV Expendable Launch Vehicle
EMACC EOS Multiple Applications Control Center
EMD EOSDIS Core System Maintenance and Development
EME ECS Maintenance Environment
EMIS EDOS Management Information System
EMIT Earth Surface Mineral Dust Source Investigation
EMLS EOS Microwave Limb Sounder
EMOC EOSDIS Mission Operations Center
EMOS EOS Mission Operations System
EMOWG EOS Mission Operations Working Group
EMS ESDIS Metrics System
EMSn EOS Mission Support network
ENI Elastic Network Interface
ENMC Enterprise Network Management Center
ENSO El Nino Southern Oscillation
ENVISAT Environmental Satellite
EO Earth Observation
EO-1 Earth Orbiter-1
EO-ICWG Earth Observations International Coordination Working Group
EOC EOS Operations Center
EOCC EOS Operations and Control Center
EOIS Earth Observation Information System
EOP EDOS Operation Protocol
EOPS ERBE Operational Processing System
EORC Earth Observation Research Center
EOS Earth Observing System
EOS AERO EOS Aerosol Mission
EOS ALT EOS Altimetry Mission
EOS AM Earth Observing System AM or morning crossing (Terra satellite)
EOS CHEM EOS Chemistry Mission
EOS COLOR EOS Color Mission
EOS PM Earth Observing System PM or afternoon crossing (Aqua satellite)
EOS-G Earth Observing System - Goddard
EOSAT Earth Observing Satellite Company
EOSC EOS Operations Support Capability
EOSDIS Earth Observation System Data and Information System
EOSFDS EOS Flight Data System
EOSIWG EOS Investigator Working Group
EOSP Earth Observing Scanning Polarimeter
EOSPSO EOS Project Science Office
EOSSALT Earth Observing Solid-State Radar Altimeter
EOSSMS EOS Space Measurement System
EOSSRP EOS Scientific Research Program
EOT EDOS Operational Timeline
EOWG ESDIS Operations Working Group
EP Earth Probe
EPDS EMOS Production Data Set
EPG ECS Process Improvement Group
EPGN EOS Polar Ground Network
EPGS EOS Polar Ground Station
EPGSS Earth Observing Polar Ground Station Services
EPIC Earth Polychromatic Imaging Camera
EPOCH East Pacific Origins and Characteristics of Hurricanes
EPOP European Polar-Orbiting Platform
EPR EED2 Program Roadmap
EPTOMS Earth Probe Total Ozone Mapping Spectrometer
ER-2 Earth Resources NASA research aircraft
ERAST Experimental Research Aircraft Sensor Technology Program
ERBE Earth Radiation Budget Experiment
ERBS Earth Radiation Budget Satellite
ERDAS Earth Resources Data Analysis System
ERDET ESDIS Requirements Database Engineering Team
ERG EOSDIS Review Group
EROS Earth Resources Observation System
ERPS EOS Real-Time Processing System
ERS-1 Earth Remote-sensing Satellite-1
ERSAR Earth Resources Synthetic Aperture Radar
ERSDAC Earth Remote Sensing Data Analysis Center
ERTS-1 Earth Resources Technology Satellite –1
ESA European Space Agency
ESAC Earth Science Advisory Committee
ESAD Earth Science and Applications Data System

Earth Science Directorate

ESDC ESAC Science Data Center
ESDD Earth Science Data Directory
ESDIS Earth Science Data and Information System
ESDR Earth Science Data Record
ESDS Earth Science Data System
ESDSWG Earth Science Data System Working Group
ESDT Earth Science Data Type
ESE Earth Sciences Enterprise
ESESES Enhanced Solid Earth Science ESDR System
ESH EDOS Service Header
ESI EOSDIS Service Interface
ESIC Earth Science Information Center
ESID EOSDIS Systems Interface Document
ESIP Earth Science Information Partners
ESMES EOS System Management and Engineering Site
ESMO Earth Science Mission Operations
ESMP ECS Schedule Management Plan
ESMR Electronically Scanning Microwave Radiometer
ESN EOSDIS Science Network (ECS) (Replaced By Ebnet)
ESO ESDIS Standards Office
ESOC EOSDIS System and Operations Concept (Document)
ESOD Earth Science On-Line Directory
ESOO ESDIS Science Operations Office
ESPD Earth Science Projects Division
ESQL Earth Science Query Language
ESRIN European Space Research Institute (ESA)
ESSAAC Earth System Science and Applications Advisory Committee
ESSC Earth System Sciences Committee
ESSE EDOS System Support Environment
ESSI Earth and Space Science Informatics
ESSn EOS Science Support network
ESSO Earth Science Support Office
ESSP Earth Science Systems Program
ESST Earth Science Search Tool
ESTB EGNOS System Test Bed
ESTEC European Space Research and Space Technology Centre (ESA)
ESTOL EOS Standard Text and Operation Language
ETM+ Enhanced Thematic Mapper Plus (Landsat 7)
ETRS89 European Terrestrial Reference System 1989
ETS EOS Test System
ETSF EOSDIS Test System Facility
ETTS ECS Trouble Ticketing System
EUI Earthdata User Interface
EUMETSAT European Organization for the Exploitation of Meteorological Satellites
EUMS ESDIS User Model Scenario
EVI Enhanced Vegetation Index
EVR ECS Verification Report
ExCEL EOSDIS Cloud Evolution
EXPORTS EXport Processes in the Ocean from RemoTe Sensing
EXRAD ER-2 Doppler Radar
F Back to top
FA Formulation Agreement
FaaS Function as a Service
FAD Formulation Authorization Document
FAQ Frequently Asked Questions

Fast Cloud Droplet Probe
FCCSET Federal Coordinating Council for Science, Engineering and Technology
FCDAS Fairbanks Command and Data Acquisition Station
FDF Flight Dynamics Facility
FDS Flight Dynamics System
FE Fast Ethernet
FEGS Fly's Eye GLM Simulator
FEMA Federal Emergency Management Agency
FEWS NET Famine Early Warning System Network
FGDC Federal Geographic Data Committee
FIA USDA Forest Inventory and Analysis
FIFE First ISLSCP Field Experiment
FIRE First ISCCP (International Satellite Cloud Climatology Project) Regional Experiment
FIREX-AQ Fire Influence on Air Quality
FIRMS Fire Information for Resource Management System
FLASHFlux Fast Longwave And SHortwave Radiative Fluxes
FLDAS FEWS NET Land Data Assimilation System
FLOR Forecast-oriented Low Ocean Resolution
FM-1 Flight Model 1 (NASA EOS MODIS)
FOIA Freedom Of Information Act
FORTE Fast On-Orbit Recording of Transient Events
FORTRAN Formula Translation
FOS Flight Operations Segment (ECS)
FOT Flight Operations Team (ECS)
FOV Field of View
FPAR Fraction of photosynthetically active radiation
FPD Flight Projects Directorate
FRGP Front Range GigaPOP
FRR Flight Readiness Review
FSA Federal Space Agency (Russia)
FST Field Support Terminal
FTP File Transfer Protocol
FY Fiscal Year
G Back to top
G-LiHT Goddard's Lidar, Hyperspectral and Thermal Imager
G3OS Global Terrestrial Observing System
GAC Global Area Coverage (AVHRR)
GALILEO Informal name of GNSS
GATES Geostationary Advanced Technology Environmental System
GB gigabyte (109)
GBAD Ground Based Attitude Determination
gbps Giga bits per second
GCC Goddard Communications Control
GCDC Global Change Data Center
GCDIS Global Change Data and Information System
GCLDC Global Change Landsat Data Collection
GCMD Global Change Master Directory
GCOM Global Change Observation Mission
GCOM-W Global Change Observation Mission-Water
GCPs Ground Control Points
GCPEx GPM Cold-season Precipitation Experiment
GDAL Geospatial Data Abstraction Library
GDAO Goddard Data Assimilation Office
GDAS NCEP 1-Degree Global Data Assimilation Model
GDEM Global Digital Elevation Model
GDEx Global Data Explorer
GDR Geophysical Data Record (JPL)
GDS Ground Data System
GDS IMS Ground Data System Information Management System
GDT Global DIgital Topography
GEBA Global Energy Budget Archive
GED ASTER Global Emissivity Database
GEDI Global Ecosystem Dynamics Investigation
GEMI Global Environment Monitoring MSAVI
GENESIS Global Environmental and Ecological Simulation of Interactive Systems
GEO geostationary-Earth orbit - DO NOT USE (per NASA Style Guide)
GEOS Goddard Earth Observing System
GEOSS Global Earth Observation System of Systems
Geosat Naval Geodetic Satellite
GeoTIFF Geographic Tagged Image File Format *commonly referred to as GeoTIFF
GeoVIS Geographic Vector Interpretation System (Africover)
GERIS Geophysical Environmental Research Imaging Spectrometer
GES Goddard Earth Sciences
GES DISC Goddard Earth Sciences Data and Information Services Center
GESSEP Goddard Earth Space Science Education Project
GEWEX Global Energy and Water cycle Experiment
GFCC Global Forest Cover Change
GFDL Geophysical Fluid Dynamics Laboratory
GFED Global Fire Emissions Database
GFEI Global Fuel Exploitation Inventory
GFS Global Forecast System
GFSAD Global Food Security-support Analysis Data
GGI GPS Geoscience Instrument
GHISA Global Hyperspectral Imaging Spectroscopy of Agricultural-Crops and Vegetation
GHRC DAAC Global Hydrometeorology Resource Center DAAC
GHRSST Group for High Resolution Sea Surface Temperature
GIBS Global Imagery Browse Services
GIMP Greenland Ice Mapping Project
Giovanni Geospatial Interactive Online Visualization and Analysis Infrastructure
GIS Geographical Information System *commonly used as GIS or gis
GISIG Geographical Information Systems International Group
GISS Goddard Institute for Space Studies
GITC GIBS Ingest in the Cloud
GLA Goddard Laboratory for Atmospheres
GLAS Geoscience Laser Altimeter System
GLAST Gamma Ray Large-Area Space Telescope
GLCC Global Land Cover Characterization
GLCN Global Land Cover Network
GLCTS Global Land Cover Test Sites
GLDAS Global Land Data Assimilation System
GLI Global Imager (Japan, ADEOS)
GLIDER Globally Leveraged Intergrated Data Exploration for Research 
GLIMS Global Land Ice Measurements from Space
GLIS Global Land Information System
GLISTIN Glacier and Ice Surface Topography Interferometer
GLL Galileo
GLM Geostationary Lightning Mapper
GLOBE Global Change Observing Mission
GLONASS Global'naya Navigatsionnaya Sputnikovaya Sistema, Global Orbiting Navigation Satellite System (Russia)
GLOSS Global Observation Surveillance System
GloVIS Global Visualizer
GLRS Geoscience Laser Ranging System
GLRS-A Geoscience Laser Ranging System Altimeter
GLRS-R Geoscience Laser Ranging System Ranger
GLS Global Land Survey
GMAO Global Modeling and Assimilation Office
GMI Global Modeling Initiative
GMIS Global Man-made Impervious Surface
GML Geography Markup Language
GMS Geostationary Meteorological Satellite
GMSL Global Mean Sea Level
GMST Greenwich Mean Sidereal Time
GMT Greenwich Mean Time
GMU George Mason University
GN Ground Network
GN&C Guidance, Navigation and Control
GN&CS Guidance, Navigation, and Control Subsystem (Terra AM-1)
GNS GEOnet Names Server
GNSS Global Navigation Satellite System
GOCE Gravity field and steady-state Ocean Circulation Explorer
GOES Geostationary Operational Environmental Satellite
GOFC Global Observations of Forest Cover (IGOS)
GOLD Global Observation of Land Cover Dynamics
GOME Global Ozone Monitoring Experiment
GOMI Global Ozone Monitoring Instrument
GOMOS Global Ozone Monitoring by Occultation of Stars
GOMR Global Ozone Monitoring Radiometer
GOMS Geostationary Operational Meteorological Satellites
GOPM Goddard Orbital Parameters Message
GOS Geomagnetic Observing System
GOZCARDS Global OZone Chemistry And Related trace gas Data records for the Stratosphere
GP-MCE General Purpose Managed Cloud Environment
GPCP Global Precipitation Climatology Project
GPD Goddard Policy Directive (formerly called GMI)
GPG Goddard Procedures and Guidelines
GPI Global Precipitation Index
GPM Global Precipitation Measurement
GPP Gross Primary Productivity
GPR Ground Penetrating Radar
GPROF Goddard PRO Filing algorithm for instantaneous rain retrieval
GPS Global Positioning System *commonly used as GPS or gps
GPSDIS Global Positioning System Data Information System (JPL)
GPSDR Global Positioning System Demonstration Receiver
GPSOS Global Positioning Sensor Occultation System
GPSR Global Positioning Satellite Receiver
GPSSS Global Positioning System Sustaining Support
GPW Gridded Population of the World
GRACE Gravity Recovery And Climate Experiment
GRASS Geographic Resource Analysis Support System
GRC Glenn Research Center DO NOT USE (per NASA Style Guide)
GRDC Global Runoff Data Center
GRE Generic Routing Encapsulation
GREALM Global Lake/Reservoir Surface Inland Water Height Global Reservoirs and Lakes Monitoring
GrfN Getting Ready for NISAR
GridFTP Grid File Transfer Protocol
GRIP Genesis and Rapid Intensification Processes experiment
GRRATS Global River Radar Altimeter Time Series
GRS 80 Geodetic Reference System of 1980
GRT Ground Receipt Time
GRUMP Global Rural-Urban Mapping Project
GS [EOS] Ground System
GSDI Global Spatial Data Infrastructure
GSDM Global Spatial Data Model
GSDS Global Spatial Data System
GSFC Goddard Space Flight Center DO NOT USE (per NASA Style Guide)
GSIF Ground Station Interface Facility
GSIP Ground Station Interface Processor
GSLV Geosynchronous Satellite Launch Vehicle
GSM Global System for Mobile Communication
GSMaP Global Satellite Mapping of Precipitation
GTDS Goddard Trajectory Determination System
GTE Global Tropospheric Experiment
GTOPO30 A global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds
GTWAY Gateway [for Version 0 interoperability]
GUI Graphical User Interface
GUID Globally Unique Identifier
GURP Goddard Uncosted Reduction Project
GV Ground Validation
GW Gateway
GWR Geographyically Weighted Regression
GWELD Global Web Enabled Landsat Data
H Back to top
HADS Hydrometeorological Automated Data Systems
HALOE Halogen Occultation Experiment
HANPP Human Appropriation of Net Primary Productivity
HBASE Global Human Built-up And Settlement Extent
HCR HDF EOS Configuration Record
HDEV High Definition Earth Viewing
HDF Hierarchical Data Format
HDF-EOS Hierarchical Data Format - Earth Observing System
HDDS Hazards Data Distribution System
HEG HDF-EOS to GeoTIFF Conversion Tool
HEO High Earth Orbit
HEW HDF-EOS WEB-based subsetter
HGML Hyper Graphics Markup Language (Graphical Alternative to HTML)
HiCARS High Capability Radar Sounder
HIMSS High-Resolution Microwave Spectrometer Sounder (Replaced By MIMR)
HIRAD Hurricane Imaging Radiometer
HIRDLS High Resolution Dynamics Limb Sounder
HIRIS High-Resolution Imaging Spectrometer
HIRRLS High-Resolution Research Limb Sounder
HIRS High-Resolution Infrared Sounder
HIS High-Resolution Interferometer Sounder
HiTIDE High-level Tool for Interactive Data Extraction
HIWRAP High Altitude Imaging Wind and Rain Airborne Profiler
HMA High Mountain Asia
HNL High Northern Latitudes
HOMAGE Heat and Ocean Mass from Gravity ESDR
HPGN High-Precision Geodetic Network
HQ DO NOT USE (per NASA Style Guide)
HR Heterotrophic Respiration
HR-AMS High-Resolution Aerosol Mass Spectrometer
HRDFEP High Rate Demodulator Front End Processor
HRG High-Resolution Geometry (SPOT)
HRPT High-Resolution Picture Transmission (AVHRR)
HRV Haute Résolution dans le Visible (SPOT)
HRVIR High Resolution Visible Infrared (scanner)
HS3 Hurricane and Severe Storm Sentinel
HSB Humidity Sounder - Brazil (Derivative of AMSU-B, Replacing MHS)
HSDS Object Store-Based Data Service for Earth System Science
HSI Hue, Saturation, Intensity – Hyperspectral Imaging Instrument
HSRL High Spectral Resolution Lidar
HTML Hypertext Markup Language *commonly used as HTML or html
HTTP Hypertext Transport Protocol *commonly used as HTTP or http
HVM Hardware Virtual Machine
HYDE History Database of the Global Environment
HYDICE Hyperspectral Digital Imagery Collection Experiment
HYMAP Airborne Hyperspectral Imaging
HYSOG Hydrologic Soil Group
HYSPLIT Hybrid Single-Particle Lagrangian Integrated Trajectory
I Back to top
I&CLC2000 Image and CORINE Land Cover 2000
I-SIPS ICESat Science Investigator-led Processing System

Infrastructure as a Service

IASI Infrared Atmospheric Sounding Interferometer
IAU International Astronomical Union
ICARTT International Consortium for Atmospheric Research on Transport and Transformation
ICC Instrument Control Center
ICD Interface Control Document
ICE POP International Collaborative Experiment for Pyeongchang Olympic and Paralympics
ICESat Ice, Cloud and Land Elevation Satellite
ICF Instrument Control Facility (ECS)
ICMP Internet Control Message Protocol
ICSU International Council of Scientific Unions
IDL Interactive Data Language
IEEE Institute of Electrical and Electronics Engineers
IELV Intermediate Expendable Launch Vehicle
IEOS International Earth Observing System
IERS International Earth Rotation Service
IFC Iowa Flood Center
IFloodS Iowa Flood Studies
IFOV Instantaneous Field of View
IFREMER Instiut Francais de Recherche pour l'Exploration de la Mer
IFSARE Inter-ferometric Synthetic Aperture Radar for Elevation
IGAC International Global Atmospheric Chemistry Program of the IGBP
IGAP International Global Aerosol Program
IGARSS IEEE International Geoscience and Remote Sensing Symposium
IGBP International Geosphere - Biosphere Programme
International Geosphere–Biosphere Programme – Data and
Information System
IGMP Internet Group Multicast Protocol
IGN International Geodetic Network
IGOS Integrated Global Observing Strategy
IGS ICEsat Ground System
IGST ICESat Ground System Test
IKAR-N scanning microwave radiometer system
IKAR-P nadir microwave radiometer
ILAS Improved Limb Atmospheric Spectrometer
IMERG Integrated Multi-satelliE Retrievals for GPM
IMG Interferometric Monitor for Greenhouse Gases
IMOC ICESat Mission Operations Center
IMPACT Interagency Implementation and Advanced Concepts Team

Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms
IMS Information Management System
INFLAME In-situ Net Flux within the Atmosphere of the Earth
INPE Instituto Nacional de Pesquisas Espaciais (Brasil)
INS inertial navigation system
InSAR Interferometric Synthetic Aperture Radar
INSAT Indian National Satellite
INSPIRE Infrastructure of Spatial Information in the European Community
Intelsat International Telecommunications Satellite
INTEX-B Intercontinental Chemical Transport Experiment - Phase B
IOC ICESat Orbit Control Software
IONET Internet Protocol Operational Network
IOP Inherent Optical Property
IOT Instrument Operations Team
IP Internet Protocol
IPA Inter-Project Agreement
IPaaS Integration Platform as a Service
IPCC Intergovernmental Panel on Climate Change
IPD Information Processing Division
IPHEx Integrated Precipitation and Hydrology Experiment
IPNOC Internet Protocol Network Operations Center
IPOC International Partner Operations Center
IPOMS International Polar Orbiting Meteorological Satellite Committee
IR Infrared
IR&D Independent Research and Development
IR-RAD Infrared Radiometer
IRAD Independent Research And Development
IRCD Interface Requirements Control Document
IRD Interface Requirements Document
IRTS Infrared Temperature Sounder
ISAMS Improved Stratospheric And Mesospheric Sounder
ISAS Institute of Space and Astronautical Science
ISCCP International Satellite Cloud Climatology Project
ISDN Integrated Systems Digital Network
ISERV ISS SERVIR Environmental Research and Visualization System
ISF Instrument Support Facility
ISIPS ICEsat Science Investigator-Led Processing System
ISIR Infrared Spectral Imaging Radiometer
ISLSCP International Satellite Land Surface Climatology Project
ISO International Organization for Standardization
ISP Internet Service Provider
ISPRS International Society for Photogrammetry and Remote Sensing
ISRO Indian Space Research Organisation
ISS International Space Station
ISSN International Standard Serial Number
IST Instrument Support Terminal
ITMaaS Information Technology Management as a Service
ITIR Intermediate Thermal Infrared Radiometer
ITRF International Terrestrial Reference Frame
ITRS International Terrestrial Rotation Service
ITS LIVE Inter-Mission Time Series of Land Ice Velocity and Elevation
IWG Investigator Working Group
IWGDD Interagency Working Group on Digital Data
IWGDMGC Interagency Working Group on Data Management for Global Change
J Back to top
JAVA Joint Academic Virtual Application *commonly used as JAVA or java
JAXA Japan Aerospace Exploration Agency
JEOC Japan's Earth Observation Center
JEOS Japanese Earth Observing System
JERS-1 Japanese Earth Remote-sensing Satellite-1
JGOFS Joint Global Ocean Flux Study
JMA Japan Meteorological Agency
JPL Jet Propulsion Laboratory
JPLAIRSAR JPL Airborne Synthetic Aperture Radar
JPOP Japanese Polar-Orbiting Platform
JPSS Joint Polar Satellite System
JRC Joint Research Centre (Italy)
JRC CEO European Commission Joint Research Centre
JSC Johnson Space Center DO NOT USE (per NASA Style Guide)
JSON JavaScript Object Notation
JWT JSON Web Token
K Back to top
K Kelvin
KARI Korea Aerospace Research Institute
KASPR Ka-band Scanning Polarimetric Radar
KB kilobyte
KBR K-Band Ranging System
KDP Key Decision Point
KML Keyhole Markup Language
KNMI Royal Netherlands Meteorological Institute
KOMPSAT Korea Multipurpose Satellite
KSC Kennedy Space Center DO NOT USE (per NASA Style Guide)
KVM Kernel-based Virtual Machine
L Back to top
L0 Level 0 (zero)
L0R Level 0 Release
L1 Level 1
L1G Level 1 Geometrically Corrected
L1R Level 1 Radiometrically Corrected
L2 Level 2
L2TP Layer 2 Tunneling Protocol
L3 Level 3
L4 Level 4
LAADS DAAC Level 1 and Atmosphere Archive and Distribution System DAAC
LAC Local Area Coverage
LADAR Laser Detection and Ranging
LAGEOS Laser Geodynamics Satellite
LAI Leaf area index
LAMP Linux, Apache, MySQL, and PHP
LAMP Low Altitude Mapping Photogrammetry
LAMPS Laser-scan Automated Map Production System
LAN Local Area Network
LANCE Land, Atmosphere Near real-time Capability for EOS (Earth Observing System)
LANL Los Alamos National Lab
Landsat Land Remote-Sensing Satellite
LaRC Langley Research Center DO NOT USE (per NASA Style Guide)
LaRCNET Langley Research Center Network
LARSE Laboratory for Applications of Remote Sensing in Ecology
LASE LIDAR Atmospheric Sensing Experiment
LASER Light Amplification by Stimulated Emission of Radiation *commonly referred to as laser
LaTIS Langley Research Center's TRMM Information System
LBA Large-Scale Biosphere-Atmosphere Experiment in Amazonia
LBS Location-Based Services
LCCS Land Cover Classification System
LCLUC Land Cover and Land Use Change
LCPEx Light Precipitation Evaluation Experiment
LDAP Lightweight Data (or Directory) Access Protocol
LDEO Lamont-Doherty Earth Observatory
LDHF Landsat-7 Data Handling Facility
LDOPE Land Data Operational Product Evaluation
LDOS Landsat Data and Operations System
LECZ Low Elevation Coastal Zone
LEO low-Earth orbit - DO NOT USE (per NASA Style Guide)
LERTS Laboratoire d'Etudes et de Recherches en Teledetedion Spatiale
LGS LDEO Gravimeter Suite
lidar Light Detection And Ranging  *
LIDQA Landsat Image Data Quality and Analysis
LIGHTSAR Lightweight Synthetic Aperture Radar
LIMS Limb Infrared Monitor of the Stratosphere
LIP Lightning Instrument Package
LIS Lightning Imaging Sensor
LITE LIDAR-in-space Technology Experiment
LLC Logical Link Control
LMA Lightning Mapping Array
LMD Laboratoire de Meteorologie Dynamique
LOGSWG Landsat Operations Ground Segment Working Group
LOS Loss Of Signal
LP DAAC Land Processes DAAC
LR Laser Retroreflector
LRPT Low-Resolution Picture Transmission
LRR Launch Readiness Review
LRRL Low Rate Return Link
LRS Landsat Recorder System
LSPIM Land-Surface Processes and Interactions Mission
LSR Land Surface Reflectance
LSTE Land Surface Temperature and Emissivity
LTA Long Term Archive
LUT Look Up Table
LV Launch Vehicle
LVIS Land, Vegetation, and Ice Sensor
LW Longwave radiation
LWIR Long-Wave Infrared (spectral region)
LXC Linux Containers
LZP Level Zero Processing
LZPF Level Zero Processing Facility
LZPS Level Zero Processing System
LZW Lempel Ziv Welch
M Back to top
M2M Machine to Machine
M202 Multi Mission Observation Operator
MaaS Monitoring as a Service
MACAWS Multicenter Airborne Coherent Atmospheric Wind Sensor
MAGSAT Magnetic Field (Magnetometer) Satellite
MAIAC Multi-Angle Implementation of Atmospheric Correction
ManLan Manhattan Landing (high performance exchange point in New York City)
MAP Map Accuracy Programme (Africover)
MAPS Measurement of Atmospheric Pollution from Satellites
MAPSAT Mapping Satellite
MARLi Multi-function Airborne Raman Lidar
MAS MODIS Airborne Simulator
MASC Microwave Atmospheric Sounder on Cubesat
MASS Modular Aerial Sensing System
MASTER MODIS/ASTER Airborne Simulator
Matlab Matrix laboratory
MAX Mid-Atlantic Crossroads
MB megabyte
mb millibar
MBES Multibeam Echo Sounding
MBLA Multi-Beam Laser Altimeter
MC3E Midlatitude Continental Convective Clouds Experiment
MCIP Mission Critical IP
MCoRDS Multichannel Coherent Radar Depth Sounder
MCP Meteorological Communications Package
MCR Mission Concept Review
MCST MODIS Characterization Support Team (EOS)
MDCS Mosaic Dataset Configuration Script
MDR Mission Definition Review
MEaSUREs Making Earth System data records for Use in Research Environments
MEBS MODIS Emergency Backup System (EOS)
MEIS Multispectral Electrooptical Imaging Sensor
MELV Medium Expendable Launch Vehicle
MEO Middle Earth Orbit (Satellite)
MERES Mineral and Energy Resources Exploration Satellite (Japan)
MERRA Modern Era Retrospective-analysis for Research and Applications
MERIS Medium-Resolution Imaging Spectrometer (ESA Envisat)
MER-TOGA Data merge to Trace Organic Gas Analyzer
MER-WAS Data merge to Whole Air Sampler
MESSR Multispectrum Electronic Self-Scanning Radiometer
METEOSAT Geosynchronous Meteorology Satellite (ESA)
METI Ministry of Economy Trade and Industry (Formerly Known As MITI)
MetOp Meteorological Operational Weather Satellite
METSAT Meteorological Satellite
METEOSAT European Weather Satellite
MFOV Medium Field of View
MGRS Military Grid Reference System
MHS Microwave Humidity Sounder (EOS)
MHz MegaHertz
MIAS Multispectral Image Analysis System
MIDAS Multispectral Interactive Data Analysis System
MIIC Multi-Instrument Inter-Calibration Framework
MIMR Multifrequency Imaging Microwave Radiometer
MINDS Multi-Decadal Nitrogen Dioxide and Derived Products from Satellites
MIPAS Michelson Interferometer for Passive Atmospheric Sounding
MIR Multispectral Imaging Radiometer
MIRAS Microwave Imaging Radiometer with Aperture Synthesis (ESA)
MIRIAM/DOPI Mir Infrared Atmospheric Measurements/Double Pendulum Interferometer
MISR Multi-angle Imaging SpectroRadiometer (EOS)
MITI Ministry of International Trade and Industry
MIVIS Multispectral Infrared and Visible Imaging Spectrometer
MLS Microwave Limb Sounder
MMO Multi-Mission Operations
MMR Modular Multi-Band Radiometer
MMS Meteorological Measurement System
MMT Metadata Management Tool
MO&DSD Mission Operations and Data Systems Directorate (GSFC Code 500)
MOA Memorandum Of Agreement
MOC Mission Operations Center
MODAPS MODIS Adaptive Processing System
MODExtract MODIS Data Pool Extraction Tool
MODIS Moderate Resolution Imaging Spectroradiometer (EOS)
MODIS-N Moderate Resolution Imaging Spectroradiometer - Nadir
MODLAND MODIS Land Discipline Group (EOS)
MODS Moderate Resolution Imaging Spectrometer
MOMS Modular Optoelectric Multispectral Scanner
MOP Meteosat Operational Programme
MOPITT Measurements of Pollution in the Troposphere
MOS Marine Observation Satellite
MOSAiC Multidisciplinary drifting Observatory for the Study of Arctic Climate
MOSPF Multicast Open Shortest Path First
MOU Memorandum of Understanding
MPLS Multiprotocol Label Switching
MP-MP Multipoint-Multipoint Systems
MPPP Multi-Link Point-to-Point Protocol
MPRD Modified Proportional Radial Displacement
MPS Mission Planning System (ASF)
mrad microradians
MRIR Medium Resolution Infrared Radiometer (Nimbus)
MRR Micro Rain Radar
MrSID Multiresolution Seamless Image Database
MRT MODIS Reprojection Tool
MRTP Mission Readiness Test Plans
MRTSwatch MODIS Reprojection Tool for Swath
MRTWeb MODIS Reprojection Tool for the Web
ms millisecond
MBaaS Mobile Backend as a Service
MSaaS Managed Software as a Service
MSAS MTSAT Satellite-Based Augmentation Satellite
MSAVI Modified Soil Adjusted Vegetation Index
MSC Multispectral Camera
MSF Methane Source Finder
MSFC Marshall Space Flight Center DO NOT USE (per NASA Style Guide)
MSG Meteosat Second Generation (ESA)
MSL Mean Sea Level
MSMR Multi-frequency Scanning Microwave Radiometer
MSP Managed Service Provider
MSR Microwave Scanning Radiometer
MSS mean square slope
MSS Multi-Spectral Scanner (Landsat 1-5)
MsTMIP Multi-scale Synthesis and Terrestrial Model Intercomparison Project
MSU Microwave Sounding Unit
MSU-SK Multispectral Optical Scanner
MTF Modulation Transfer Function
MTS Meteoroid Technology Satellite (NASA)
MTSAT Multi-functional Transport Satellite (Japan)
MTTR Mean Time To Recover
MTTRS Mean Time To Restore Service
MUR Multi-scale Ultra-high Resolution
MUSES MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors
MuSLI Multi-Source Land Imaging
MUSSIC Multi-Satellite Ultraviolet Solar Spectral Irradiance Composite
MVP Minimum Valuable Product
N Back to top
NAALSED North American ASTER Land Surface Emissivity Database
NAAMES North Atlantic Aerosols and Marine Ecosystems Study
NACL Network Access Control List
NACP North American Carbon Program
NAD North American Datum
NAL National Aerospace Laboratory of Japan
NALC North American Land Characterization
NAM NASA Advisory Manager
NAPP National Aerial Photography Program
NARA National Archives and Records Administration
NARSA National Advanced Remote Sensing Applications Program
NARSTO North American Research Strategy for Tropospheric Ozone
NAS National Academy of Sciences
NAS NASA Advisory Council
NASA National Aeronautics and Space Administration *commonly used as NASA
NASCOM NASA Communications Network
NASCOP NASA Communications Operating Procedures
NASDA National Space Development Agency (Japan)
NASIRC NASA Automated Systems Incident Response Capabilities
NASTRAN NASA Structural Analysis (Program)
NAVSTAR Navigation Satellite Timing and Ranging Global Positioning System
NBAR Nadir BRDF Adjusted Reflectance
NBI Network Business Intelligence
NBIS Northern Biosphere Information System
NBSM National Bureau of Surveying and Mapping (China)
NCAR National Center for Atmospheric Research
NCC National Cartographic Centre (Iran)
NCDC National Climatic Data Center (NOAA)
NCDS NASA Climate Data System
NCEP National Center for Environmental Prediction (NOAA)
NCEP AWC National Center for Environmental Prediction Air Weather Center
NCF NSSDC Computer Facility
NCGIA National Center for Geographic Information and Analysis
NCSA National Center for Supercomputer Applications
NCSC National Computer Security Center
NCSL National Computer Systems Laboratory
NDCS National Digital Cartographic Standards
NDMC National Drought Mitigation Center
NDPR NASA Defense Purchase Request
NDSI Normalized Difference Snow Index
NDVI Normalized Difference Vegetation Index
NED National Elevation Dataset
NEP net ecosystem production
NEPP NASA Electronic Parts and Packaging
NER Named Entry Recognition
NERC National Environmental Research Centre (UK)
NESDD NOAA Earth Science Data Directory
NESDIS National Environmental Satellite, Data, and Information Service (NOAA)
NET National Environmental Satellite, Data, and Information Service
netCDF Network Common Data Form
NewDISS New Data and Information Systems and Services
NEWS NOAA’s Earth Watch Service
NEXRAD Next Generation Weather Radar
NGAP NASA-compliant General Application Platform
NGDC National Geophysical Data Center (NOAA); National Geospatial Data Clearinghouse
NGDF National Geospatial Data Files
NGIX Next Generation Internet Exchange
NGMA National Geoscience Mapping Agency (Australia)
NGMBD National Geologic Map Database (USGS)
NGT NASA Ground Terminal
NGWIC National Ground Water Information Center
NHAP National High Altitude Photography
NIAC NASA Institute for Advanced Concepts
NIC NASA Information Center
NICMOS Near-Infrared Camera and Multi-Object Spectrometer
NIMBUS NASA Meteorological Satellites (1 through 7)
NIR Near Infrared (spectral region)
NISE Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent
NISN NASA Integrated Services Network
NISS NASA Institutional Support Systems
NITRD Networking and Information Technology Research and Development
NIX NASA Image Exchange
NLAPS National Landsat Archive Production System (USGS)
NLCD National Land Cover Dataset (USGS)
NLDAS North American Land Data Assimilation System
NLDC NASA Landsat Data Collection
NLOS Not Line of Sight
NLP Natural Language Processing
NM Nadir Mapper
NMAS National Map Accuracy Standards
NMASS Nucleation Mode Aerosol Size Spectrometer
NMC National Meteorological Center (NOAA)
NMD NASA Master Directory
NMI NASA Management Instruction
NMOS Network and Mission Operations Support (NASA Program)
NMOS NASA Management and Operations Support
NMP New Millenium Program
NMQ National Mosaic and Multi-Sensor QPE
NNSS Navy Navigational Satellite System
NO2 Nitrogen Dioxide
NOAA National Oceanic and Atmospheric Administration
NOAA SAA NOAA Satellite Active Archive
NOARL Naval Oceanographic and Atmospheric Research Lab
NOC Network Operations Center
NODC National Oceanographic Data Center (NOAA)
NODS NASA Ocean Data System
NODIS NSSDC Online Data and Information Service
NOMC Network Operations Management Center
NOSIE NODC Ocean Science Information Exchange
NOSS National Oceanic Satellite System
NOX Northern Crossroads
NP Nadir Profiler
NPAS Network Planning and Analysis System
NPG NASA Procedure and Guidelines
NPOESS National Polar-orbiting Operational Environmental Satellite System
NPOL NASA S-Band Dual-Polarimetric Radar
NPOP-1 NASA Polar Orbiting Platform (One)
NPP NPOESS Preparatory Project
NPP net primary production
NPR NASA Procedural Requirements
NRA NASA Research Announcement
NRC National Research Council
NRDN NOAA Radar Data Network
NREN National Research and Education Network
NRL Naval Research Laboratory
NRMI Natural Resource Management Index
NRPI Natural Resource Protection and Child Health Indicators
NRSA National Remote Sensing Agency (India)
NRSC National Remote Sensing Centre (UK)
NRSCC National Remote Sensing Centre of China
NRT Near Real-Time
NRTP Near Real-Time Processor
NRTPE Near Real-Time Processing Effort
NRTS Near Real-Time System
NSA Northern Study Area
NSAP Network Services Access Point
NSAU National Space Agency of Ukraine
NSC Norwegian Space Centre
NSCAT NASA Scatterometer
NSDS NASA Software Documentation Standard
NSF National Science Foundation
NSG NASA Sentinel Gateway
NSIDC DAAC National Snow and Ice Data Center DAAC
NSM Network Service Manager
NSN NASA Science Network
NSP Korean National Space Development Plan
NSpC National Space Council
NSPD National Space Policy Directive
NSPIRES NASA Solicitation and Proposal Integrated Review and Evaluation System
NSR NISN Service Request
NSRS National Spatial Reference System (NOAA)
NSSDC National Space Science Data Center
NSSL National Severe Storms Laboratory (NOAA)
NSTC National Space and Technology Council
NSTR NASA Standard Tape Recorder
NTIS National Technical Information Service
NTS National Topographic Series (Canada); National Topographic System (Canada); Navigation Technology Satellite
NTTF NASA Test and Training Facility
NVAP NASA Water Vapor Project
NVCS National Vegetation Classification Standard
NWP Numerical Weather Prediction
NWS National Weather Service (NOAA)
NWS-HRL NWS - Hydrologic Research Laboratory
NWS-RFC NWS - Regional Forecast Center
NWS-RFO NWS - River Forecast Office
O Back to top
O3 Ozone
OA Operations Agreement
OB.DAAC Ocean Biology Distributed Active Archive Center
OBPG Ocean Biology Processing Group
OCDPS Ocean Color Data Processing System
OCM Ocean Colour Monitor
OCO Orbiting Carbon Observatory
OCR Optical Character Recognition; Optical Character Reader
OCTS Ocean Color and Temperature Scanner (Japan, ADEOS)
ODB Orbit Determination Beacon
ODL Object Description Language
ODPS Ocean Data Processing System SIPS
ODS One Day Schedule
OEC Optical-Electronic Camera
OGC Open Geospatial Consortium
OIIP Oceanographic In-situ data Interoperability Project
OLI Operational Land Imager
OLS Optical Line Scanner
OLYMPEX Olympic Mountain Experiment
OMAERO OMI Multi-wavelength
OMAEUV OMI Ultraviolet
OMB Office of Management and Budget
OMG Oceans Melting Greenland
OMI Ozone Monitoring Instrument
OMIS Optical Multichannel Imaging Sensor (NPOESS)
OMPS Ozone Mapper/Profiler Suite
ONVS Ozone Near-real-time and Very-fast-delivery System
OPeNDAP Open-source Project for Network Data Access Protocol
ORACLES ObseRvations of Aerosols above CLouds and their intEractionS
ORFEO Optical and Radar Federated Earth Observation
ORNL DAAC Oak Ridge National Laboratory DAAC
ORR Operational Readiness Review
OSC Orbital Sciences Corporation
OSCAR Ocean Surface Current Analysis Real-time
OSDPD Office of Space Data Processing and Distribution (NOAA)
OSF Observation Schedule File
OSMI Ocean Scanning Multispectral Imager
OSPF Open Shortest Path First (Routing Protocol)
OSPO Office of Satellite and Product Operations
OSS Open Source Software
OSTA Office of Space and Terrestrial Applications
OSTM Ocean Surface Topography Mission
OSTP Office of Science and Technology Policy
P Back to top
PaaS Platform as a Service
PACE Plankton, Aerosols, Clouds, ocean Ecosystem
PACOR Packet Processor
PALMS Particle Analysis By Laser Mass Spectrometry
PALS Passive Active L- and S-band Sensor
PALSAR Phased-Array L-band SAR (Japan)
PAR Photosynthetically Active Radiation
PB petabyte (1015)
PBL planetary boundary layer
PCA Primary Census Abstract
PC-TomoSAR Polarimetric Coherence Tomographic SAR
PCS Preservation Content Specification
PDR Product Delivery Record
PDR Preliminary Design Review
PDS Production Data Set
PE&RS Photogrammetric Engineering & Remote Sensing (journal)
PERSIANN-CCS Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks Cloud Classification System
PFAR Post-Flight Assessment Review
PFM Proto-Flight Model
PGE Product Generation Exectuable
PGS Product Generation System
PGS Polar Ground System
PGS Product Generation System
PHAIRS Public Health Application in Remote Sensing
PHD Polar HDF-EOS Data Imaging and Subsetting
PI Principal Investigator
PIM Protocol Independent Multicast
PIP Precipitation Imaging Package
PL Public Law
PLAR Post-Launch Assessment Review
PLDS Pilot Land Data System
PLRA Program-Level Requirements Appendix
PLUE Population, Land Use, and Emissions
P-MP Point-MultiPoint systems
PMR Pressure-Modulated Radiometer
PNNL Pacific Northwest National Laboratory
POA&Ms Plan of Action/Milestones
POAM Polar Ozone and Aerosols Mission
POC Point Of Contact
PO.DAAC Physical Oceanography Distributed Active Archive Center
POD Polarimeter Definition
PODEX Polarimeter Definition Experiment
POEM Polar-Orbit Earth Observation Mission
POEMS Positron Electron Magnet Spectrometer
POES Polar-Orbiting Operational Environmental Satellite
POGO Polar-Orbiting Geophysical Observatory
POLARIS Photochemistry of Ozone Loss in the Arctic Region In Summer
POLDER Polarization and Directionality of Earth's Reflectances (CNES, ADEOS)
POLES Polar Exchange at the Sea Surface
PolinSAR Polarimetric Interferometric SAR
POP Program Operating Plan
POS Product Order Status
POSS Precipitation Occurrence Sensor System
PP Principal Point
PPR Photopolarimeter Radiometer
PPRS Precipitation Retrieval and Profiling Scheme
PPS Precipitation Processing System
PR Precipitation Radar (TRMM)
PRARE Precise Range and Range Rate Equipment
PRAREE Precise Range and Range Rate Equipment - Extended
PREFIRE Polar Radiant Energy in the Far Infrared Experiment
PRIRODA Nature Instrument Model on Russian MIR Station
PRISM Portable Remote Imaging Spectrometer
PRPS Precipitation Retrieval and Profiling Scheme
PRR Production Readiness Review
PSA Product Specific Attributes
PSAT Predicted Site Acquisition Table
PSD Product Specification Document
PSLA Project Service Level Agreement
PSLV Polar Satellite Launch Vehicle
PT-JPL Priestly-Taylor Jet Propulsion Laboratory
PTH Performance Test Host
PU Processing Unit
PUMP Provider User Management Program (retied; replaced by MMT)
PV Precision Visuals
PVC Performance Verification Center
PVI Precipitation Video Imager
PVI Perpendicular Vegetation Index
Q Back to top
QA Quality Assurance
QC Quality Control
QOS Quality of Service
QUASAR Quality Assurance and Stability Reference
QuikSCAT Quick Scatterometer
QWIP Quantum Well Infrared Photodetector
R Back to top
RA Radar Altimeter
RADAR Radio Direction And Ranging *commonly referred to as radar
RADARSAT Radar Satellite
RADEX Radar Definition Experiment
RAID Redundant Array of Independent Disks
RAMP Radarsat Antarctic Mapping Program
RAMSES Retrieval Algorithm for Microwave Sounders in Earth Science
RAR Real Aperture Radar
RASA Russia Aviation-Space Agency
RASCAL Raster Scanning Airborne Laser
RBD Rate Buffered Data
RCIP Real-Time Critical IP
RCSSMRS Regional Center for Services in Surveying, Mapping and Remote Sensing
REIS RapidEye Earth Imaging System
REYNSST NCEP Reynolds Blended SST Weekly Product
RF Radio Frequency
RFC Request For Comment
RGB Red-Green-Blue
RGS Receiving Ground Station (ASF)
RINEX Receiver Independent Exchange (GPS data format)
RIP Router Information Protocol
RIS Raster Image Set
RMS Requirements Management System
RMSE Root-Mean-Square Error
RNSS Radio Navigation Satellite Service
RO Radio Occultation
ROA Remotely Operated Aircraft
ROM Read-Only Memory
ROSA Radio Occultation for Sounding the Atmosphere
ROSHYDROMET Russian Federal Service for Hydrometeorology and Environmental Monitoring
ROSIS Reflective Optics System Imaging Spectrometer
rpm revolutions per minute
RQMT Requirements Document
RRS Reduced Redundancy Storage
RSA Russian Space Agency Rosaviakosmos
RSAC Remote Sensing Applications Center
RSG Remote Sensing Group (UAZ)
RSI RADARSAT International
RSMAS Rosenstiel School of Marine and Atmospheric Sciences
RSS Remote Sensing Society (UK)
RST Remote Science Terminal
RT Real-Time
RTADS Real-Time Attitude Determination System
RTC Radiometrically Terrain-Correct
RTCM Radio Technical Commission for Maritime (format)
RTCP Real-Time Control Protocol
RTCS Real-Time Command Sequence
RTP Real-Time Positioning
RTS Real-Time System
RTSP Real-Time Streaming Protocol
RTSS Real-Time System Simulator
RTSW Real Time Solar Wind
RUC Rapid Update Cycle
RVoG Random Volume over Ground
S Back to top
S&R Search and Rescue
S3 Amazon Simple Storage Service
S4PM Simple, Scalable, Script-based, Science Processor for Measurements
S-GCOS Space-Based Global Change Observation System
S-HIS Scanning High-Resolution Interferometer Sounder
S-MODE Sub-Mesoscale Ocean Dynamics Experiment
S-PDS Session-based Production Data Sets
SaaS Software as a Service
SABGOM South Atlantic Bight and Gulf of Mexico
SAC-D Satélite de Aplicaciones Científicas-D
SAFARI Southern African Regional Science Initiative
SAFIRE Spectroscopy of the Atmosphere using Far Infrared Emission
SAGE Stratospheric Aerosol and Gas Experiment
SAM Stratospheric Aerosol Measurement
SAMS Stratospheric And Mesospheric Sounder
SAP Service Access Point
SAPHIR Sounder for Probing Vertical Profiles of Humidity
SAR Synthetic Aperture Radar
SARSAT SAR Satellite
SAS-C Scientific Applications Satellite - C
SASS Seasat-A Satellite Scatterometer System
SATC Software Assurance Technology Center
SAVE Southern African Validation of EOS
SAVI Soil-Adjusted Vegetation Index
SB-PDS Session-Based Production Data Sets
SBES Singlebeam Echo Sounding
SBUV Solar Backscatter Ultraviolet
SCA Star Camera Assembly
ScaLARS Scanning Laser Altitude and Reflectance Sensor (Germany)
SCaMPR Self-Calibrating Multivariate Precipitation Retrieval
SCAN Snow Climate Analysis Network
SCANSAR Scanning Synthetic Aperture Radar
SCANSCAT Scatterometer (Dual Pencil-Beam), Advanced Scatterometer for Studies in Meteorology and Oceanography
SCAR-A Smoke/Sulfates, Clouds and Radiation - America
SCAR-B Smoke/Sulfates, Clouds and Radiation - Brazil
SCARAB Scanner for the Radiation Budget
SCF Science Computing Facility
SCIAMACHY Scanning Imaging Absorption Spectrometer for Atmospheric Cartography
SCP Secure Copy
SCUBA Self Contained Underwater Breathing Apparatus *commonly referred to as scuba
SDAC Satellite Data Analysis Center
SDAT Spatial Data Access Tool
SDCS SAR Data Catalog System
SDMP Science Data Management Plan
SDN Software-Defined Network (SD-LAN, SD-WAN)
SDOC Science Data Operations Center
SDPF Science Data Processing Facility
SDPS Science Data Processing Segment (ECS)
SDPS Science Data Processing System
SDR System Definition Review
SDS Science Data System
SDSC San Diego Supercomputer Center
SDSD Satellite Data Services Division
SE&I System Engineering and Integration
SE/RC System Evolution/Release C (ECS)
SeaBASS SeaWiFS Bio-optical Archive and Storage System
SEAC4RS Southeast Asia Composition, Cloud, Climate Coupling Regional Study
SeaDAS SeaWiFS Data Analysis System *commonly referred to as SeaDAS
SeaPAC SeaWinds Project (JPL)
SEASAR Sea Synthetic Aperture Radar
SEASAT Sea Satellite
SEASTAR Spacecraft Flying SeaWiFS
SeaWiFS Sea-Viewing Wide-Field Sensor
SeaWinds Seawinds Scatterometer (for Flight on ADEOS II)
SEDAC Socioeconomic Data and Applications Center
SEE Sustaining Engineering Facility (EDOS Component)
SEEDS Strategic Evolution of ESE Data Systems (formerly NewDISS)
SEF Sustaining Engineering Facility (EDOS)
SELV Small Expendable Launch Vehicle
SEM Space Environment Monitor
SERF Service Entry Resource Format
SESDI Semantically-Enabled Scientific Data Integration
SESPD Space and Earth Science Programs Directorate
SEVIRI Spinning Enhanced Visible and Infrared Imager (ESA)
SFE Science Formatting Equipment (Terra AM-1)
SFSI Shortwave-Infrared Full Spectrum Imager (Canada)
SFTP Secure Shell File Transfer Protocol
SGI Silicon Graphics - Iris
SGML Standard Generalized Markup Language
SGS Svalbard Ground Station (Norway)
SHIPS Statistical Hurricane Intensity Prediction Scheme
SI Spatial Information
SIASGE Sistema Italo-Argentino de Satélites protects Gestión de Emergencias
SiB4 Simple Biosphere Model 4
SIF Solar-Induced Fluorescence
SIG Special Interest Group
SIM Spectral Irradiance Monitor
SIMBIOS Sensor Intercomparison and Merger for Biological and Interdisciplinary Oceanic Studies
SIMIP Sea Ice Model Intercomparison Project
SIMMS Scalable Integrated Multi-Mission Simulator
SIN Sinusoidal
SIP Standard Internet Protocol
SIPS Science Investigator-led Processing System
SIR System Integration Review
SIR-C Shuttle Imaging Radar-C
SIR-C/X-SAR Spaceborne Imaging Radar-C/X-Band SAR
SIRS Satellite Infrared Spectrometer
SIS Spatial Information System
SISS Software Implementation Support System
SIT System Integration Test
SIVY Systems Integration and Visualization of Yellowstone
SKS Svalbard Kongsberg Ground Station
SLA Service Level Agreement
SLAI Sunlit Leaf Area Index
SLAR Side-Looking Airborne Radar
SLR Satellite Laser Ranging
SLC Single Look Complex
SMAP Soil Moisture Active Passive
SMAPVEX SMAP Validation Experiment
SMC System Management Center
SMD Science Mission Directorate
SMIL Synchronized Multimedia Integration Language
SMM Solar Maximum Mission
SMMR Scanning Multispectral Microwave Radiometer
SMOS Soil Moisture and Ocean Salinity
SMP SnowMicroPen
SMS Synchronous Meteorological Satellite
SMSR Safety and Mission Success Review
SMTP Simple Mail Transport Protocol
SMUrF Solar-Induced Fluorescence for Modeling Urban biogenic Fluxes
SN Space Network
SNMP Simple Network Management Protocol
SNOTEL Snow Telemetry
SNOW-I Search 'N Order Web Interface
SnowEx Snow Experiment
SNWG Satellite Needs Working Group
SNR Signal-to-Noise Ratio
SNS Simple Notification Service
SNSB Swedish National Space Board
SOAP Simple Object Access Protocol
SOAR Satellite Ocean Aerosol Retrieval
SoCAB South Coast Air Basin
SOCC Science Operations Control Center
SOLSPEC Solar Spectrum (Space Shuttle instrument from Europe)
SOLSTICE Solar Stellar Irradiance Comparison Experiment
SOM Space Oblique Mercator (projection); Spatial Object Manager
SONAR Sound Navigation and Ranging
SONET Synchronous Optical Network
SOP Standard Operating Procedure
SORCE Solar Radiation and Climate Experiment
SOX Southern Crossroads
SOW Statement of Work
SP2 Single Particle Soot Photometer
SPANS Simple Protocol for Asynchronous Transfer Mode Network Signaling
SPDB Science Processing Database
SPEX Spectral Polarimeter for Planetary Explorations
SPIE Society of Photo-optical Instrumentation Engineers
SPIN-2 Space Information-2 Meter Data (Russian Space Agency)
SPOT Systeme Pour l'Observation de la Terre
SPoRT Short-term Prediction Research and Transition Center
SPS Science Processing System
SPURS Salinity Processes in the Upper Ocean Regional Study
SQS Simple Queue Service
SRB Surface Radiation Budget
SRDB Soil Respiration Database
SRL Shuttle Research Laboratory
SROM Spectro-radiometer for Ocean Monitoring
SRR System Requirements Review
SRS/GPS Stellar Reference System/Global Positioning System
SRTM Shuttle Radar Topology Mission
SSA Southern Study Area
SSALT Solid-State Altimeter
SSB Space Studies Board
SSBUV Shuttle Solar Backscatter Ultraviolet
SSC Stennis Space Center DO NOT USE (per NASA Style Guide)
SSE Surface Solar Energy
SSEC Space Science and Engineering Center (University of Wisconsin)
SSH Sea Surface Height
SSHA Sea Surface Height Anomalies
SSI&T Science Software Integration and Test
SSL Secure Sockets Layer
SSM/I Special Sensor Microwave/Imager
SSM/T Special Sensor Microwave/Temperature Sounder
SSMIS Special Sensor Microwave Imager Sounder
SSO Single Sign-On
SSP Shared Socioeconomic Pathways
SSS Sea Surface Salinity
SST Sea Surface Temperature
SSU Stratospheric Sounding Unit
STA Science and Technology Agency
STA3CD Subsetting Tools for Advanced Analysis of Airborne Chemistry Data
STARE SpatioTemporal Adaptive-Resolution Encoding to Unify Diverse Earth Science Data for Integrative Analysis
STC Short-time Critical
STDM Spacecraft Tracking and Data Network
STGT Second TDRSS Ground Terminal
STIKSCAT Stick Scatterometer
STILT Stochastic Time-Inverted Lagrangian Transport
STS Space Transport System
SUCCESS SUbsonic aircraft Contrail and Clouds Effects Special Study
SUDS Science, User and Data Services
Suomi NPP Suomi National Polar-orbiting Partnership
SVI Social Vulnerability Index
SW Shortwave radiation
SWBD Shuttle Radar Topography Mission (SRTM) Water Body Dataset
SWE Snow Water Equivalent
SWESARR Snow Water Equivalent SAR and Radiometer
SWG Science Working Group
SWIR Shortwave infrared (TM5 and TM7 spectral region)
SWIRLS Stratospheric Wind Infrared Limb Sounder
SWOT Surface Water Ocean Topography
T Back to top
T&C Telemetry and Command
TT&C Tracking, Telemetry and Command
TARFOX Tropospheric Aerosol Radiative Forcing Observational Experiment
TB terabyte (1012)
TBD To Be Determined
TBM Terrestrial Biosphere Model
TCI Tropical Cyclone Intensity
TCP/IP Transmission Control Protocol/Internet Protocol
TCSP Tropical Cloud Systems and Processes
TDOPF Time Dependent Operational Parameter Fire
TDRS Tracking and Data Relay Satellite
TDRSS Tracking and Data Relay Satellite System
TEDA Technical Data Acquisition Equipment (ADEOS)
TERS Tropical Earth Resources Satellite
TES Tropospheric Emission Spectrometer
TGD Thermal Infrared
TGDDIS Trace Gas Dynamics Data Information System
THIR Temperature-Humidity Infrared Radiometer
THORpex THe Observing-system Research and predictability experiment
THREDDS THematic Realtime Environmental Distributed Data Services
TIGER Thermal Infrared Ground Emission Radiometer
TIM TRMM Microwave Imager
TIMS Therms Infrared Multispectral Scanner
TIN Triangular Irregular Network
TIR Thermal Infrared
TIROS Television and Infrared Operational Satellite
TIRS Thermal Infrared Sensor
TIS Topographic Information Systems
TISF Tape Inventory Sequential Files
TLS Terrestrial Laser Scanning
TLSCF Team Led Science Computing Facility
TM Thematic Mapper (Landsat 5)
TMI TRMM Microwave Instrument (Japan)
TMPA TRMM Multi-satellite Precipitation Analysis
TMR TOPEX Microwave Radiometer
TOA Top-of-Atmosphere
TOAST Total Ozone Analysis using SBUV/2 and TOVS
ToF Time of Flight
TOGA Tropical Ocean Global Atmosphere
TomoSAR Tomography SAR
TOMS Total Ozone Mapping Spectrometer
TOPEX Ocean Topography Experiment
TOPSAR Topographic Synthetic Aperture Radar
TOVS TIROS Operational Vertical Sounder
TPM Trusted Platform Mobile
TRACER Tropospheric Radiometer for Atmospheric Chemistry and Environmental Research
TRMM Tropical Rainfall Measuring Mission
TROPESS TRopospheric Ozone and its Precursors from Earth System Sounding
TROPICS Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats
TROPOMI TROPOspheric Monitoring Instrument
TRUST TDRSS Resource User Support Terminal
TSAVI Transformed Soil Adjusted Vegetation Index
TSDIS TRMM Science Data and Information System
TSIS Total and Spectral Solar Irradiance Sensor
TSS TRMM Support System
TSTOL TRMM System Test and Operations Language
TSU TRMM Science User
TURFTS TDRSS User Radio Frequency Test Set
TWMS Tiled Web Map Service
U Back to top
UAF University of Alaska-Fairbanks
UARP Upper Atmosphere Research Program
UARS Upper Atmosphere Research Satellite
UAT User Acceptance Testing
UAV Uninhabited Aerial Vehicle
UCAR University Corporation for Atmospheric Research
UCL University College, London
UDP/IP User Datagram Protocol/Internet Protocol
UEM Unified Endpoint Management
UHE Urban Heat Exposure
UHF Ultra High Frequency
UIUC University of Illinois at Urbana-Champaign
um micrometer
UMBC University of Maryland, Baltimore County
UMM Unified Metadata Model
UNOOSA United Nations Office of Outer Space Affairs
URI Uniform Resource Identifier
URL Uniform Resource Locator
URS User Registration System (EOSDIS)
UserDIS User Data Information System
USGCRP United States Global Change Research Program
USNO United States Naval Observatory
USNVC United States National Vegetation Classification
USO Ultra-Stable Oscillator
USV Uninhabited Surface Vehicle
UTC Universal Time, Coordinated
UTCF Universal Time Correlation Factor
UTDF Universal Tracking Data Format
UTM Universal Transverse Mercator
UV Ultraviolet
UWG User Working Group
UWIREMIS University of Wisconsin-Madison MODIS Infrared Emissivity
V Back to top
V0 Version 0
VAS VISSR Atmospheric Sounder
VATC Verification and Acceptance Testing Center
VCF Vegetation Continuous Fields
VCL Vegetation Canopy LIDAR
VD Village Directory
VDI Virtual Desktop Infrastructure
VESDR Vegetation Earth System Data Record
VGT SPOT-4 VEGETATION instrument (France)
VHRPC Very High Resolution Panchromatic Camera
VHRR Very High Resolution Radiometer
VI Vegetation Index
VID Vegetation Index Differencing
VIIRS Visible Infrared Imaging Radiometer Suite
VIP Vegetation Index and Phenology
VIRGO Variability of Solar Irradiance and Gravity Oscillations
VIRR Visible and Infrared Radiometer
VIRS Visible Infrared Scanner
VIRSR Visible Infrared Scanning Radiometer
VIS Visible (spectral region)
VIS-UV Visible/Ultraviolet Spectrometer
VIS/IR Visible/Infrared
VISSR Visible/Infrared Spin-Scan Radiometer (GOES)
VM Virtual Machine
VML Vector Markup Language
VMM Virtual Machine Monitor
VMM VISSR Multiplexor/Modulator
VNIR Visible and Near-infrared (spectral region)
VOCs Volatile Organic Compounds
VOLCAM Volcanic Ash Mission
VPC Virtual Private Cloud
VPN Virtual Private Network
VRM Vector Ruggedness Measure
VRML Virtual Reality Modeling Language
VSAR Variable Synthetic Aperture Radar
VTIR Visible and Thermal Infrared Radiometer
W Back to top
W/A Working Agreement
WAN Wide Area Network
WCRP World Climate Research Program
WCS Web Coverage Service
WDTS Western Diversity Time Series Campaign
WDVI Weighted Difference Vegetation Index
WELD Web Enabled Landsat Data
WetCHARTs Wetland Methane Emissions and Uncertainty
Wetnet Network for Distribution and Joint Analysis of SSM/I
WFF Wallops Flight Facility DO NOT USE (per NASA Style Guide)
WFOV Wide Field Of View
WG Working Group
WGCV Working Group on Calibration and Validation (CEOS)
WGD Working Group on Data (CEOS)
WGISS Working Group on Information Systems and Services
WGS Wallops Ground System
WGS 84 World Geodetic System 1984
WHOI Woods Hole Oceanographic Institution
WiFS Wide Field-of-view-Sensor
WiMAX Worldwide Interoperability for Microwave Access
WISPER Water Isotope System for Precipitation and Entrainment Research
WIST Warehouse Inventory Search Tool
WMO World Meteorological Organization
WMS Web Map Service
WMTS Web Map Tile Service
WOCE World Ocean Circulation Experiment
WOTIS Wallops Orbital Tracking Information System
WRAP Wildfire Research and Application Partnership
WRF Weather Research and Forecasting
WS-CRDS Wavelength-Scanned Cavity Ring Down Spectroscopy
WSC White Sands Complex
WSGT White Sands Ground Terminal
WSMC Western Space and Missile Center
WSTF White Sands Test Facility DO NOT USE (per NASA Style Guide)
WTS Wallops Tracking Station
WWW World Wide Web *commonly referred to as www
WYSIWYG What You See Is What You Get
X Back to top
X-SAR X-Band Synthetic Aperture Radar
XBT Expendable Bathythermograph
xDLS eXtensible Distance Learning System
XHTML eXtensible Hyper Text Markup Language *commonly used as XHTML or xhtml
XML eXtensible Markup Language *commonly used as XML or xml
XP Exchange Point
XPS XUV Photometer System
XSL eXtensible Stylesheet Language
XSLT eXtensible Stylesheet Language Transformation
Y Back to top
YIBS-CEO Yale Institute of Biospheric Studies - Center of Earth Observation
YTD Year To Date
Z Back to top

Page Last Updated: Jan 4, 2022 at 1:25 PM EST