ICESat-2 L-30 Science Briefing Graphics
Next month, NASA will launch into space the most advanced laser instrument of its kind, beginning a mission to measure – in unprecedented detail – changes in the heights of Earth’s polar ice.
NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will measure the average annual elevation change of land ice covering Greenland and Antarctica to within the width of a pencil, capturing 60,000 measurements every second.
“ICESat-2’s new observational technologies will advance our knowledge of how the ice sheets of Greenland and Antarctica contribute to sea level rise while also helping us understand the connection of sea ice loss to the global system,” said Thomas Wagner, cryosphere program scientist in NASA’s Science Mission Directorate.
ICESat-2 will extend and improve upon NASA's 15-year record of monitoring the change in polar ice heights, which started in 2003 with the first ICESat mission and continued in 2009 with NASA’s Operation IceBridge, an airborne research campaign that monitors the accelerating rate of change.
ICESat-2 represents a major technological leap in our ability to measure changes in ice height. Its Advanced Topographic Laser Altimeter System (ATLAS) measures height by timing how long it takes individual light photons to travel from the spacecraft to Earth and back.
NASA will host a media teleconference at 1 p.m. EDT Wednesday, Aug. 22, to discuss the upcoming launch of the Ice, Cloud and land Elevation Satellite (ICESat-2), which will fly NASA's most advanced laser altimeter to measure Earth’s changing ice. The teleconference will stream live on NASA's website.
ICESat-2 is scheduled to launch Sept. 15 from Vandenberg Air Force Base.
The briefing participants are:
• Tom Wagner, cryosphere program scientist in the Science Mission Directorate (SMD) at NASA Headquarters
• Richard Slonaker, ICESat-2 program executive in SMD
• Doug McLennan, ICESat-2 project manager at NASA’s Goddard Space Flight Center
• Donya Douglas-Bradshaw, Advanced Topographic Laser Altimeter System (ATLAS) instrument project manager at Goddard
• Tom Neumann, ICESat-2 deputy project scientist at Goddard
Figure 11 (Neumann) -- This data visualization shows swaths of ice elevation data gathered over the Rink Glacier in Greenland by NASA's Airborne Topographic Mapper, an airborne lidar flown over Greenland regularly since 1993 and on NASA's Operation IceBridge since 2009. The end of the animation compares the scale of the airborne data to the global coverage ICESat-2 will provide.
Please give credit for this item to:
NASA's Goddard Space Flight Center