2005), Estimates of forest canopy height and aboveground biomass using ICESat
only measures the lakes 66 days per year.
satellite has been critical to meeting the goals of NASA's Cryospheric Science Program by providing ice elevation information at continental scales with high spatial resolution.
Rothrock, 2009: Decline in Arctic sea ice thickness from submarine and ICESat
The study compared traditional ground measurements to satellite data from NASA's Ice, Cloud and Land Elevation Satellite, or ICESat
, and the Gravity Recovery and Climate Experiment, or GRACE, missions to estimate ice loss for glaciers in all regions of the planet.
The team then tracked ice motion in the satellite images and combined it with ice-thickness data from NASA's ICEsat
in order to estimate how much ice was lost through the Nares Strait.
In fact, Borsa and his colleagues conducted their survey to obtain accurate altitude measurements that could be used to calibrate the laser altimeter on board ICESat
, an Earth-orbiting craft designed to monitor ice sheets (SN: 12/24&31/05, p.
Spreen, 2015: Uncertainties in Antarctic sea-ice thickness retrieval from ICESat
Recent analysis of data from both the ICESat
satellite and an ongoing airborne mission called Operation IceBridge show us how the surface elevation of the ice sheet has changed.
, which stopped operating in 2009, measured glacier change through laser altimetry, which bounces lasers pulses off the ice surface to inform the satellite of changes in the height of the ice cover.
A team of UK scientists has been studying six years' worth of data collected by NASA's Icesat
mission, which uses a laser altimeter to measure the elevation of ice sheets.
The mission of Operation IceBridge is to collect data on changing polar ice and maintain continuity of measurements between ICESat