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Web map displaying the Global 30-m Height Above Nearest Drainage (HAND) image service, produced by the Alaska Satellite Facility (ASF) using the Copernicus Global 30-m DEM.

Global 30-m HAND

Learn how to use the Global 30-m Height Above Nearest Drainage (HAND) dataset generated from the Copernicus GLO-30 DEM.
StoryMap
Dec. 2, 2022
Earthdata graphic identifier on top of map of Earth and binary code

Global 30-m HAND

Height Above Nearest Drainage (HAND) is a terrain model that normalizes topography to the relative heights along the drainage network and is used to describe the relative soil gravitational potentials or the local drainage potentials.
Tutorial
Dec. 2, 2022
Earthdata graphic identifier on top of image of Earth

Sentinel-1 Interferometric Coherence Image Services

Learn about median 6-, 12-, 18-, 24-, 36- and 48-day seasonal coherence values and mean seasonal backscatter for Sentinel-1 acquisitions from December 1, 2019 through November 30, 2020.
Tutorial
Dec. 1, 2022
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