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  • West Central Greenland
  • Masthead platform instrument info ICESat-2/ATLAS
  • Masthead date range 2 August 2019

ICESat-2 Senses Elevation Change Over Time

NASA’s ICESat-2 satellite repeats its set of orbits every 91 days, measuring heights along these orbits in each season. In three months, the ATLAS instrument will measure this same orbit track to reveal how the elevation of these melt ponds in west central Greenland have changed since August 2.

Measuring Elevation One Photon at a Time

ICESat-2’s ATLAS instrument measures surface height by sending photons to Earth and timing their return to the instrument. The black line in this elevation profile comprises detected photons and reveals the relative elevation of the ice sheet surface, including melt pond surfaces and bases.


NASA's data policy ensures that all NASA data are available fully, openly, and without restrictions. Here's what this means to you.

Severe storms across the United States

Image captured on 18 August 2019, by the VIIRS instrument, on board the joint NASA/NOAA Suomi-NPP satellite, with IMERG data showing Rain Rate (Early).

Webinar: Navigating NASA's LP DAAC to Find Answers to your Deepest Land Data Questions

Event Date: August 22, 2019

During this webinar we will provide answers to commonly asked questions about NASA land processes data, services and tools, and show you how to navigate the new LP DAAC website to discover data resources.

Wasting away

Mapping stormwater runoff in Southern California helps keep toxins at bay.

New Version of the ASTER GDEM

Version 3 of the ASTER Global Digital Elevation Model (GDEM) provides new features and sharper imagery.

Today's Interns . . . Tomorrow's Mentors

Under the guidance of experienced mentors, summer interns are supporting tasks at the ESDIS Project Office and at EOSDIS DAACs across the country.

Wildfires Can't Hide from Earth Observing Satellites

Sensors aboard Earth observing satellites and NASA’s Fire Information for Resource Management System (FIRMS) provide information about wildfires 24/7 to anyone, anywhere in the world.

User Profile: Dr. Pierre Kirstetter

Who uses NASA Earth science data? Dr. Pierre Kirstetter, for improving our understanding of precipitation and flooding.

ICESat-2 Data Usher in a New Age of Exploration

Data from NASA’s ICESat-2 mission provide incredibly accurate measurements of Earth elevation change—and much more.

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