Skip all navigation and jump to content Jump to site navigation
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

Hughes, NE Hughes, NE; Wilkinson, JP; Wadhams, P (2011). Multi-satellite sensor analysis of fast-ice development in the Norske Oer Ice Barrier, northeast Greenland. ANNALS OF GLACIOLOGY, 52(57), 151-160.

Abstract
The Norske Oer Ice Barrier (NOIB) is a region of fast ice located off the northeast coast of Greenland.. It is one of the most extensive areas of landfast ice on Earth. This paper looks at the NOIB formation during the freeze-up of late 2003 and the break-up in summer 2004. As the fast ice is immobile, it provides an ideal location for checking the consistency of classification schemes for satellite sensors. Active microwave (SAR) backscatter values from Envisat are compared with optical observations from the MODIS, multichannel passive microwave from the SSM/I and with ice-freeboard values from the Envisat RA-2. In August 2004 the underside of the NOIB was mapped by an upward-looking multibeam sonar mounted on the Autosub autonomous underwater vehicle. Statistics from sea-ice draft measurements by the multibeam are compared with neat-coincident satellite observations. Evaluating the evolution of the fast ice through multiple satellite sensors with ground truth measurements may allow future development of improved automatic classification algorithms which will be better able to track fast-ice extent. Loss of the fast ice for periods of the year has implications for the coastal environment of Greenland and may contribute to the retreat of the Nioghalvfjerdsfjorden glacier and enhanced coastal erosion.

DOI:
0260-3055

ISSN:

NASA Home Page Goddard Space Flight Center Home Page