12:00 PM - 12:15 PM
[ACC28-12] Calibration and evaluation of glacier surface elevation change in accumulation area using ICESat laser altimeter
Keywords:glacier, DEM, ICESat, Himalaya
At first, glacier surface elevation change between 2000 and 2012 has been calculated by grid DEM using linear regression (Nuimura et al. 2011). Meanwhile, ICESat laser measurement has been carried out 30 times between 2003 and 2008 in this region (ZICESat). Hence, we extracted surface elevation of each date from linear regression from grid DEM (Zeval). And those difference has been evaluated altitudinally for on/off-glacier.
Altitudinal distribution of the difference is near from zero line off glacier. On the other hand, Zeval shows over estimation of altitude upper than 5300 m a.s.l. on glacier.