NASA Earth Science Division...NASA Earth Science Division Mitchumand+Nerem,2007 Eric+Steig...

Image: M. Studinger

Universidad de Magallanes en Punta Arenas15 November 2010

NASA Earth Science Division

Mitchum and  Nerem,  2007

Eric  Steig et  al.,  Nature,  2009

Image: Jim Yungel

Ice Penetrating Radars contained in fairing below hull( snow-depth radar antennas in wing roots)

Oct  28,  2010:  Sea  Ice  Mission  over  Weddell  Sea  with  CryoSat-­‐2  underflight

Sea Ice Conditions along Weddell Sea CryoSat Profile

400 m

5 m

0 m

Freeboard measurementof sea ice forthickness estimation

October 28, 2010 – Weddell Sea

leads/waterSnow surface

sea ice

500 m1 m

October 28, 2010 – Weddell Sea

Oct  30,  2010:  Sea  Ice  Mission  over  Bellingshausen  and  Amundsen  Seas

ICESat Orbits

Amundsen-Scott South Pole Station

IceBridge DMS aerial photo from November 4, 2010

DC-8 overhead of South Pole Station

Image: David (Pablo) Cohn, South Pole Station

10 km

1 km

ROCK

ICE

AIR

ice surface

Internal layers

bedrock

more than 100drawdown

Image: T. Scambos

Larsen B Ice Shelfbefore collapse

Operation IceBridge:http://www.nasa.gov/icebridge

Data is freely available atNational Snow and Ice Data Center (NSIDC)http://nsidc.org/data/icebridge/