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Description

M2TMNXAER (or tavgM_2d_aer_Nx) is a time-averaged 2-dimensional monthly mean data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of assimilated aerosol diagnostics, such as column mass density of aerosol components (black carbon, dust, sea salt, sulfate, and organic carbon), surface mass concentration of aerosol components, and total extinction (and scattering ) aerosol optical thickness (AOT) at 550 nm. The total PM1.0, PM2.5, and PM10 may be derived with the formula described in the FAQs under the Documentation tab of this page. The collection also includes variance of certain parameters.

MERRA-2 is the latest version of global atmospheric reanalysis for the satellite era produced by NASA Global Modeling and Assimilation Office (GMAO) using the Goddard Earth Observing System Model (GEOS) version 5.12.4. The dataset covers the period of 1980-present with the latency of ~3 weeks after the end of a month.

Data Reprocessing: Please check “Records of MERRA-2 Data Reprocessing and Service Changes” linked from the “Documentation” tab on this page. Note that a reprocessed data filename is different from the original file.

MERRA-2 Mailing List: Sign up to receive information on reprocessing of data, changing of tools and services, as well as data announcements from GMAO. Contact the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov) to be added to the list.

Questions: If you have a question, please read "MERRA-2 File Specification Document", “MERRA-2 Data Access – Quick Start Guide”, and FAQs linked from the ”Documentation” tab on this page. If that does not answer your question, you may post your question to the NASA Earthdata Forum (forum.earthdata.nasa.gov) or email the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov).

Version Description

The GEOS-5 model version used for processing MERRA-2

Product Summary

Platforms
MERRA-2
Instruments
NOT APPLICABLE
Projects
MERRA-2
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
0.625 Decimal Degrees x 0.5 Decimal Degrees
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1980-01-01 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C1276812866-GES_DISC
Data State
ACTIVE
Number of Files/Granules
556
Processing Level
4
Published
Updated
Science Keywords
Aerosols ,
Aerosol Extinction ,
Aerosol Optical Depth/Thickness ,
Angstrom Exponent ,
Aerosol Particle Properties ,
Carbonaceous Aerosols ,
Dust/Ash/Smoke ,
Organic Particles ,
Sulfate Particles ,
Sulfur Oxides ,
Sulfur Compounds ,
Sulfate ,
Sulfur Dioxide ,
Sulfur Oxides ,
Particulate Matter ,
Dimethyl Sulfide ,
Black Carbon ,
Sea Salt ,
PARTICULATE MATTER (PM 2.5) ,
PARTICULATE MATTER (PM 10) ,
PARTICULATE MATTER (PM 1.0)

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Global Modeling and Assimilation Office, & Pawson, S. (2015). MERRA-2 tavgM_2d_aer_Nx: 2d,Monthly mean,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics V5.12.4 [Dataset]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/FH9A0MLJPC7N Date Accessed: 2026-06-08

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
The Impact of NO2 and SO2 Pollutants on Respiratory Diseases: A Case Study of Indonesia Asadelia Rafmawan, Reizka Heat Flux, Air Temperature, Skin Temperature, Specific Humidity, Water Vapor, Precipitation Rate, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, U/V Wind Components, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Assessing and improving MERRA-2 black carbon column concentration over china using multi-source data and machine learning Zhang, Qian, Wang, Xudong, Long, Yuan Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
A standardized precipitation-adjusted air quality index for integrated monitoring of PM2. 5 concentrations Awan, Wajiha Batool, Ali, Zulfiqar Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Machine learning estimates for G20 subnational urban GHG emissions from 20002020 Yu, Ying, Wang, Xuewei, Manya, Diego, Hsu, Angel Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Interannual variability of spring dust column mass concentration over Zhang, Hailiang, He, Qing, Aihaiti, Ailiyaer, Li, Yongkang, Zeng, Kang, Jiang, Hong, Liao, Qimei Land Use/Land Cover Classification, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Emissions, UV Aerosol Index, Gas/Aerosol Composition, Deposition
Investigating recent dust transport patterns in the Caribbean region Zeydan, Ozgur, Ramsawak, Richard Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Influence of Tibetan Plateau Snow Cover on ENSO Variability via the Zhang, Chao, Duan, Anmin, Browning, Thomas J., Xie, Yuxin, Achterberg, Eric P. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Diurnal and Seasonal Variations of Dust Transport around the Tibetan Plateau: Insights from Multi-Source Observations Xu, Xiaofeng, Xiong, Zixu, Gong, Jianming, Zhang, Huilin, Zhao, Tianliang, He, Qing Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Past, current and future solar radiation trends in Europe: Multi-source assessment of the role of clouds and aerosols Segado-Moreno, Leandro C., Ruiz-Arias, Jose A., Montavez, Juan Pedro, Betak, Juraj Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Seasonal dynamics of Sulfur dioxide and Sulfate aerosols over India: Insights from Sentinel-5P and MERRA-2 datasets J S, Priya, V, Krishnakumar, Rahim, Sabna Precipitation, Rain, Precipitation Amount, Precipitation Rate, Snow, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Spatiotemporal variability and long-term trends of aerosol optical depth over Ethiopia: Insights from satellite and reanalysis data Wateso, Begashaw Tadesse, Garuma, Gemechu Fanta, Tsidu, Gizaw Mengistu, Beketie, Kasahun Ture Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
TURAAB: A 34-Year Dust and Atmospheric Regional Reanalysis for the Patlakas, Platon, Chaniotis, Ioannis, Stathopoulos, Christos, Alhajji, Zakiah, Sulaymon, Ishaq Dimeji, Mhawish, Alaa, Alqahtani, Jumaan Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Air Pollutants Associated Hospitalization in Pediatric Pneumonia: A Sitthikarnkha, Phanthila, Uppala, Rattapon, Techasatian, Leelawadee, Saengnipanthkul, Suchaorn, Niamsanit, Sirapoom, Peansukwech, Udomlack, Sutra, Sumitr, Anantasit, Nattachai, Teeratakulpisarn, Jamaree, Jenwitheesuk, Kamonwan, Kosararaksa, Pope Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Geopotential Height, Altitude, Surface Temperature, Skin Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Cloud Top Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Boundary Layer Winds, Total Ozone
Spring and Summer Sea Ice Controls Interannual Variation in Top-of-Atmosphere Upward Shortwave Flux over the Antarctic Amma, Michinari, Hayasaka, Tadahiro Geopotential Height, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Altitude, Surface Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Cloud Top Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Boundary Layer Winds, Skin Temperature, Potential Vorticity, Vertical Profiles, Relative Humidity, Ozone Profiles
A global aerosol model based on the analysis of 30-year ground measurements from AERONET (AEROEX model): Implications for satellite-derived aerosol retrievals Mishra, Manoj K., Shameela, S.F., Kuttippurath, Jayanarayanan, Rathore, Pradyuman S. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Heat Flux, Air Temperature, Skin Temperature, Specific Humidity, Water Vapor, Precipitation Rate, Snow/Ice, Evaporation, Latent Heat Flux, Latent Heat Flux, Sensible Heat Flux, Diffusion, Surface Winds, Wind Speed, U/V Wind Components, Wind Stress, Wind Stress, Surface Roughness, Planetary Boundary Layer Height, Ice Fraction
Air pollution and labour productivity: firm-level spatial evidence from China Zhang, Yi, Liang, Weijun, Liang, Yongfu Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Aerosol hygroscopicity over the South-East Atlantic Ocean during the biomass burning seasonPart 2: Influence of sea salt and burning conditions on CCN ... Che, Haochi, Zhang, Lu, Segal-Rozenhaimer, Michal, Dang, Caroline, Zuidema, Paquita, Sedlacek III, Arthur J. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
A preliminary assessment of the spatial and temporal patterns of sand and dust storms over the Sahara Saleh, Sahar A., A. S., Saleh, Badawy, Hesham Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Emissions, UV Aerosol Index, Gas/Aerosol Composition, Deposition
Black carbon aerosols in China: spatial-temporal variations and lessons Zheng, Huang, Kong, Shaofei, Ding, Deping, Savadkoohi, Marjan, Song, Congbo, Zheng, Mingming, Harrison, Roy M. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Atmospheric aerosols in the South Pacific: A regional baseline and Isaza, Alejandra, Hilly, Jimmy, Kay, Merlinde, Prasad, Abhnil, Dansie, Andrew Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Atmospheric Processes over the Broader Mediterranean Region 19802024: Effect of Volcanoes, Solar Activity, NAO, and ENSO Kambezidis, Harry D. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0), Atmospheric Radiation, Longwave Radiation, Shortwave Radiation, Radiative Flux, Radiative Forcing, Surface Radiative Properties, Albedo, Emissivity, Cloud Properties, Cloud Fraction, Cloud Optical Depth/Thickness, Skin Temperature, Skin Temperature, Sea Surface Skin Temperature
Assessment of Aerosol Optical Properties and Dual Nature of Aerosol-Induced Radiative Forcing for Shortwave and Longwave over Northwest India Pippal, Prity S., Kumar, Rajesh, Kumar, Ramesh, Singh, Atar Atmospheric Radiation, Longwave Radiation, Shortwave Radiation, Radiative Flux, Radiative Forcing, Surface Radiative Properties, Albedo, Emissivity, Cloud Properties, Cloud Fraction, Cloud Optical Depth/Thickness, Skin Temperature, Skin Temperature, Sea Surface Skin Temperature, Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Assessment of Carbonaceous Particulates in West Africa Region (19802023): Chemometrics and Health Risk Omokpariola, Daniel Omeodisemi, Nduka, John Kanayochukwu, Omokpariola, Patrick Leonard Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Hygroscopic aerosols amplify longwave downward radiation in the Arctic Ji, Denghui, Palm, Mathias, Buschmann, Matthias, Ebell, Kerstin, Maturilli, Marion, Sun, Xiaoyu, Notholt, Justus Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
Mass absorption cross-section of ambient black carbon aerosols-a review Asmi, Eija, Sipkens, Timothy A., Saturno, Jorge, Backman, John, Vasilatou, Konstantina, Weingartner, Ernest, Keller, Alejandro, Ciupek, Krzysztof, Muller, Thomas, Babu Suja, Arun, Mocnik, Grisa, Drinovec, Luka, Eleftheriadis, Konstantinos, Gini, Maria I., Nowak, Andreas, Corbin, Joel C. Aerosols, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Carbonaceous Aerosols, Dust/Ash/Smoke, Organic Particles, Sulfate Particles, Sulfur Oxides, Sulfur Compounds, Sulfate, Sulfur Dioxide, Sulfur Oxides, Particulate Matter, Dimethyl Sulfide, Black Carbon, Sea Salt, PARTICULATE MATTER (PM 2.5), PARTICULATE MATTER (PM 10), PARTICULATE MATTER (PM 1.0)
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Variables

The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.

For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor Offset
BCANGSTR BCANGSTR 1 float32 999999986991104 N/A N/A N/A
BCCMASS BCCMASS kg m-2 float32 999999986991104 N/A N/A N/A
BCEXTTAU BCEXTTAU 1 float32 999999986991104 N/A N/A N/A
BCFLUXU BCFLUXU kg m-1 s-1 float32 999999986991104 N/A N/A N/A
BCFLUXV BCFLUXV kg m-1 s-1 float32 999999986991104 N/A N/A N/A
BCSCATAU BCSCATAU 1 float32 999999986991104 N/A N/A N/A
BCSMASS BCSMASS kg m-3 float32 999999986991104 N/A N/A N/A
DMSCMASS DMSCMASS kg m-2 float32 999999986991104 N/A N/A N/A
DMSSMASS DMSSMASS kg m-3 float32 999999986991104 N/A N/A N/A
DUANGSTR DUANGSTR 1 float32 999999986991104 N/A N/A N/A
DUCMASS DUCMASS kg m-2 float32 999999986991104 N/A N/A N/A
DUCMASS25 DUCMASS25 kg m-2 float32 999999986991104 N/A N/A N/A
DUEXTT25 DUEXTT25 1 float32 999999986991104 N/A N/A N/A
DUEXTTAU DUEXTTAU 1 float32 999999986991104 N/A N/A N/A
DUFLUXU DUFLUXU kg m-1 s-1 float32 999999986991104 N/A N/A N/A
DUFLUXV DUFLUXV kg m-1 s-1 float32 999999986991104 N/A N/A N/A
DUSCAT25 DUSCAT25 1 float32 999999986991104 N/A N/A N/A
DUSCATAU DUSCATAU 1 float32 999999986991104 N/A N/A N/A
DUSMASS DUSMASS kg m-3 float32 999999986991104 N/A N/A N/A
DUSMASS25 DUSMASS25 kg m-3 float32 999999986991104 N/A N/A N/A
lat lat degrees_north float64 N/A N/A N/A N/A
lon lon degrees_east float64 N/A N/A N/A N/A
OCANGSTR OCANGSTR 1 float32 999999986991104 N/A N/A N/A
OCCMASS OCCMASS kg m-2 float32 999999986991104 N/A N/A N/A
OCEXTTAU OCEXTTAU 1 float32 999999986991104 N/A N/A N/A
OCFLUXU OCFLUXU kg m-1 s-1 float32 999999986991104 N/A N/A N/A
OCFLUXV OCFLUXV kg m-1 s-1 float32 999999986991104 N/A N/A N/A
OCSCATAU OCSCATAU 1 float32 999999986991104 N/A N/A N/A
OCSMASS OCSMASS kg m-3 float32 999999986991104 N/A N/A N/A
SO2CMASS SO2CMASS kg m-2 float32 999999986991104 N/A N/A N/A
SO2SMASS SO2SMASS kg m-3 float32 999999986991104 N/A N/A N/A
SO4CMASS SO4CMASS kg m-2 float32 999999986991104 N/A N/A N/A
SO4SMASS SO4SMASS kg m-3 float32 999999986991104 N/A N/A N/A
SSANGSTR SSANGSTR 1 float32 999999986991104 N/A N/A N/A
SSCMASS SSCMASS kg m-2 float32 999999986991104 N/A N/A N/A
SSCMASS25 SSCMASS25 kg m-2 float32 999999986991104 N/A N/A N/A
SSEXTT25 SSEXTT25 1 float32 999999986991104 N/A N/A N/A
SSEXTTAU SSEXTTAU 1 float32 999999986991104 N/A N/A N/A
SSFLUXU SSFLUXU kg m-1 s-1 float32 999999986991104 N/A N/A N/A
SSFLUXV SSFLUXV kg m-1 s-1 float32 999999986991104 N/A N/A N/A
SSSCAT25 SSSCAT25 1 float32 999999986991104 N/A N/A N/A
SSSCATAU SSSCATAU 1 float32 999999986991104 N/A N/A N/A
SSSMASS SSSMASS kg m-3 float32 999999986991104 N/A N/A N/A
SSSMASS25 SSSMASS25 kg m-3 float32 999999986991104 N/A N/A N/A
SUANGSTR SUANGSTR 1 float32 999999986991104 N/A N/A N/A
SUEXTTAU SUEXTTAU 1 float32 999999986991104 N/A N/A N/A
SUFLUXU SUFLUXU kg m-1 s-1 float32 999999986991104 N/A N/A N/A
SUFLUXV SUFLUXV kg m-1 s-1 float32 999999986991104 N/A N/A N/A
SUSCATAU SUSCATAU 1 float32 999999986991104 N/A N/A N/A
time time minutes since 2025-02-01 00:30:00 int32 N/A N/A N/A N/A
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