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For Further InformationNASA's ICESat-2 laser fires 10,000 pulses a second to measure ice sheets, sea ice, forests and coastal seafloor in 3D.
Image: NASA/Bill Ingalls.
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NASA's ICESat-2 launched on September 15, 2018 and carries a photon-counting laser altimeter that measures the elevation of ice sheets, glaciers, sea ice, tree canopies and the ocean in 3D detail. The laser pulses 10,000 times a second; each pulse releases about 300 trillion photons, and only about a dozen return. It helps scientists see why, and how much, Earth is changing in a warming climate.
Source: NASA, ICESat-2
New ICESat-2 data even map shallow near-shore seafloor from space.
For Further Information: NASA, ICESat-2
ICESat-2's laser fires 10,000 pulses a second, each with about 300 trillion photons, and only about a dozen return to the satellite.
Want to go deeper? NASA, ICESat-2 has the full story and the latest updates.
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