Airborne Laser/GPS Topo Mapping applied to ICESat

Cal/Val

… and hopefully to Cryosat!

NASA/NSF ATM MAPPING OF

THE DRY VALLEYS, ANTARCTICA

DEC, 2001

ICESat Groundtracks

NSF/ICESat Site Selection

NASA/NSF ATM MAPPING OF DRY

VALLEYS, ANTARCTICA DEC. 2001

• Flight Coverage •Topography Beacon Valley

Lake Bonnie

The Labyrinth

2004-10-15 trajectory with 10-14&15 GLAS data

ATM and GLAS maps

ATM GLAS 20kmscale

ATM and GLAS maps (detail of elevation)(GLAS footprint size is not to scale)

ATM

GLAS

200-mscale

ATM elevation detail

GLAS - ATM comparison of elevation(GLAS processing Release 18)

Elevation profiles: GLAS & ATM aft scan

GLAS - ATM comparison of GLAS range

Combinations of Data

Between

2003 and 1997