New NASA Earthdata Cloud Access Option for the SMAP Collection Available on December 3, 2024
NASA's NSIDC DAAC will add 22 datasets from the Soil Moisture Active Passive (SMAP) collection to NASA's Earthdata Cloud on December 3, 2024. Earthdata Cloud is NASA’s archive of Earth observations, hosted in Amazon Web Services (AWS). While these datasets will continue to be available via their current URLs and workflows, these legacy access methods will be retired soon. Users are encouraged to update their direct download workflows, including any data download scripts, to use the new Earthdata Cloud HTTPS location after December 3, 2024. The Earthdata Cloud HTTPS data access URL will be available from each data set landing page using the HTTPS File System link under Data Access and Tools after the publication date.
Learn more about SMAP data in the cloud
Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 Dataset Updated
The Sea Ice Concentrations from Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) and DMSP Special Sensor Microwave Imager/Sounder (SSMIS) Passive Microwave Data, Version 2 dataset available from NSIDC DAAC has been updated through June 30, 2024. This dataset is generated from brightness temperature data and is designed to provide a consistent time series of sea ice concentrations spanning the coverage of several passive microwave instruments. The data are provided in the polar stereographic projection at a grid cell size of 25 x 25 kilometers.
Access the Sea Ice Concentrations Version 2 dataset and more information
AMSR-E/AMSR2 Unified Level 3 Global Daily/Weekly/Monthly Ascending and Descending .25x.25 deg Ocean Grids, Version 1 Datasets Released
NSIDC DAAC has released the Global Daily Ascending/Descending .25x.25 deg Ocean Grids, Version 1, AMSR-E/AMSR2 Unified L3 Global Weekly Ascending/Descending .25x.25 deg Ocean Grids, Version 1, and AMSR-E/AMSR2 Unified L3 Global Monthly Ascending/Descending .25x.25 deg Ocean Grids, Version 1 datasets.
These datasets report daily, weekly, and monthly estimates of water vapor, cloud liquid water content, and surface wind speed over the ocean, on a global 0.25° × 0.25° resolution grid. AMSR Unified data are generated from Advanced Microwave Scanning Radiometer (AMSR), (AMSR-E), and AMSR2 data that have been resampled to intercalibrate (i.e., unify) the instruments. Temporal coverage for each dataset spans from June 2002 to the present, with a gap of data between the end of the AMSR-E mission on October 4, 2011, and the beginning of AMSR2 coverage on July 2, 2012. The data are derived from the AMSR-E/AMSR2 Unified Level 2B Global Swath Ocean Products, Version 1 dataset.
Access AMSR-E/AMSR2 datasets and more information
High Mountain Asia Daily 5 Kilometer Landslide Hazard Indicator, Version 1 Dataset Updated
The High Mountain Asia Daily 5km Landslide Hazard Indicator, Version 1 dataset has been updated and is available at NSIDC DAAC. This update adds landslide hazard indicators (LHIs) for 1990 through 2014, retrodicted using the same 30-member ensemble climate model used to project LHIs through 2100.
This dataset contains projections of the daily hazard of rainfall-triggered landslides in the High Mountain Asia region from 2015 through 2100 at 5-kilometer resolution for two Shared Socioeconomic Pathways (SSPs) — SSP2-4.5 and SSP5‑8.5 — based on downscaled temperature and precipitation projections from a 30-member ensemble climate model. Also included are two historical LHI datasets: LHIs generated from a machine learning model trained on historical temperatures, precipitation, and documented landslides for 1990 through 2019, and the newly added retrodicted LHIs based on downscaled temperatures and precipitation from the same climate model used for the projections.
Access the High Mountain Asia Daily 5 Kilometer Landslide Hazard Indicator dataset and more information
NASA Earthdata Harmony Data Transformation Services Now Available for Select ATLAS/ICESat-2 Datasets
Data transformation services through Earthdata Harmony are now available for 8 Advanced Topographic Laser Altimeter System (ATLAS)/Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) datasets archived at NSIDC DAAC. Spatial and temporal subsetting services are now available for the following datasets:
- ATLAS/ICESat-2 L2A Global Geolocated Photon Data, Version 6 (ATL03)
- ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles, Version 6 (ATL04)
- ATLAS/ICESat-2 L3A Land Ice Height, Version 6 (ATL06)
- ATLAS/ICESat-2 L3A Sea Ice Height, Version 6 (ATL07)
- ATLAS/ICESat-2 L3A Land and Vegetation Height, Version 6 (ATL08)
- ATLAS/ICESat-2 L3A Calibrated Backscatter Profiles and Atmospheric Layer Characteristics, Version 6 (ATL09)
- ATLAS/ICESat-2 L3A Ocean Surface Height, Version 6 (ATL12)
- ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data, Version 6 (ATL13)
Earthdata Harmony allows users to subset NASA data available in Earthdata Cloud to their specific spatial and temporal regions of interest. Users can access Earthdata Harmony through the NASA Earthdata Search interface or programmatically via Harmony’s API or harmony-py Python library. Data processed by Harmony can be accessed directly in the cloud or downloaded to a local computer for further analysis.
For information on how to start using Earthdata Harmony in Earthdata Search, see the article Search, order, and customize NSIDC DAAC data with NASA Earthdata Search.
Learn more about Earthdata Harmony transformation services