Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement
Topography Learning Resources
Webinars, tutorials, data recipes and more to help you work with Topography.
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Access enhanced image services for NASA's ASF Global Seasonal Sentinel-1 Interferometric Coherence and Backscatter dataset.
StoryMap
Dec. 1, 2022
Get to know on-demand interferometric synthetic aperture radar (InSAR) products from NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
StoryMap
Nov. 16, 2021
Learn how to use the Vertex tool to process synthetic aperture radar (SAR) data.
Tutorial
May 20, 2021
Order Sentinel-1 interferometric synthetic aperture radar (InSAR) datasets from NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
StoryMap
April 23, 2021
Identify change using the log difference between two NASA Sentinel-1 Radiometric Terrain Corrected (RTC) images.
Tutorial
Nov. 17, 2020
Identify change using the log difference between two images with data from NASA's Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
StoryMap
Nov. 17, 2020
Generate a water mask using a dB threshold approach with data from NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
StoryMap
Nov. 16, 2020
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