The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) added 20 Nimbus data sets from the NASA SnowEx collection to NASA Earthdata Cloud on 15 April 2025. Earthdata Cloud is NASA’s archive of Earth observations, hosted in Amazon Web Services (AWS). The Earthdata Cloud HTTPS data access URL is now available from each data set landing page using the HTTPS File System link under Data Access & Tools.
The URL for access to the legacy HTTPS File System was removed from the data set landing page because the data were 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.
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
See the NASA Nimbus Data Rescue Project data page for a listing of data sets at https://nsidc.org/data/nimbus/data.