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Topography Learning Resources

Webinars, tutorials, data recipes and more to help you work with Topography.
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image of interferogram

Phase Unwrap an Interferogram

Learn how to phase unwrap an interferogram in this data recipe from NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
Data Recipe
Oct. 18, 2024
Maxar digital elevation data image (waiting on alt text)

NASA CSDA Program Vendor Focus—Maxar

Learn more about about the NASA Commercial Satellite Data Acquisition (CSDA) program vendor Maxar and how to discover, access, and work with Maxar data.
Webinar
Oct. 15, 2024
Screenshot of an unwrapped interferogram with the water mask applied

InSAR Water Masking

Learn about the water masking option provided by NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC) for on-demand Sentinel-1 interferometric synthetic aperture radar (InSAR).
StoryMap
Aug. 23, 2024
Earthdata graphic identifier on patterned background

InSAR Water Masking

This tutorial demonstrates the impact that water masking can have on your phase unwrapping results.
Tutorial
Aug. 23, 2024
Earthdata grphic identifier on ice sheet map

Change Detection Using OPERA Sentinel-1 RTC

Discover the process of using synthetic aperture radar (SAR) for visualizing changes in a landscape caused by disturbances such as floods, deforestation, agriculture, and freeze/thaw cycles.
Tutorial
March 23, 2024
image showing a segment of rive with changes indicated in red, blue, and yellow colors.

Change Detection Using OPERA Sentinel-1 RTC

View a change detection workflow for Radiometric Terrain-Corrected products from Sentinel-1 (RTC-S1) provided by NASA's OPERA project and Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).
StoryMap
March 4, 2024
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