As of 01 September 2025, the NASA AMSR2 SIPS will stop processing and delivering updates to Advanced Microwave Scanning Radiometer Unified (AMSR Unified) data sets. For more information, see "User notice: Updates to NASA AMSR-E/AMSR2 Unified data sets to cease on 01 September 2025".
The NSIDC DAAC is retiring access to its legacy, on-premises data archive and transitioning to the NASA Earthdata Cloud as the primary data archive. View planned retirement dates here.
AMSR Unified
AMSR Unified - Advanced Microwave Scanning Radiometers
Subscribe here to receive email updates of the AMSR Unified data announcements
Help Articles
General Questions & FAQs
The answer is yes! There are several ways to programmatically access NSIDC data products and metadata using Application Programming Interfaces (APIs). We also provide the ability to access data using an FTP client.
First, the spatial resolution of AMSR/ADEOS-II and AMSR-E/Aqua data doubles the resolution of Scanning Multichannel Microwave Radiometer (SMMR) and Special Sensor Microwave/Imager (SSM/I) data.
How to Articles
Many NSIDC DAAC data sets can be accessed using NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to:
The NASA Earthdata Cloud is the NASA cloud-based archive of Earth observations. It is hosted by Amazon Web Services (AWS). Learn how to find and access NSIDC DAAC data directly in the cloud.