The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) added 3 Pre-Icebridge data sets to NASA Earthdata Cloud on 8 April 2025. Earthdata Cloud is NASA’s archive of Earth observations, hosted in Amazon Web Services (AWS). While these data sets will continue to be available via their current URLs and workflows, these legacy access methods will be retired soon. Therefore, users are encouraged to update their direct download workflows, including any data download scripts, to use the new Earthdata Cloud HTTPS location after 8 April 2025. 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 & Tools after the publication date.
The URL for access to the legacy HTTPS File System will be removed from the data set landing page when the data are added to Earthdata Cloud. However, you can continue to find legacy HTTPS URLs in the Programmatic Data Access Guide at https://nsidc.org/data/user-resources/help-center/programmatic-data-access-guide.
Please note, newly ingested data may be available on the legacy HTTPS File System a few hours before the data are available on the new Earthdata Cloud HTTPS File System. In rare cases, data may take up to 2 days to become available in Earthdata Cloud.
The NSIDC DAAC User Services Office currently supports users with direct data download from the Earthdata Cloud HTTPS and with basic access to our AWS Simple Storage Service (S3) buckets. For more details on the access options, please see the following help resources:
https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guide
The three Pre-Icebridge data sets made available on the cloud are:
Pre-IceBridge ATM L1B Qfit Elevation and Return Strength, Version 1
Data set DOI: https://doi.org/10.5067/8Q93SAT2LG3Q
Pre-IceBridge MCoRDS L2 Ice Thickness, Version 1
Data set DOI: https://doi.org/10.5067/QKMTQ02C2U56
Pre-IceBridge ATM L2 Icessn Elevation, Slope, and Roughness, Version 1
Data set DOI: https://doi.org/10.5067/6C6WA3R918HJ
NSIDC DAAC will continue to provide updates, resources, and guidance for users as data sets are migrated to Earthdata Cloud. For any questions or comments, please contact NSIDC DAAC User Services at nsidc@nsidc.org.