FastFind »   Lastname: doi:10.1029/ Year: | Advanced Search  

AGU: Journal of Geophysical Research, Solid Earth

 

Keywords

  • gravity
  • sea ice
  • Arctic

Index Terms

  • Geodesy and Gravity: Satellite geodesy: results
  • Marine Geology and Geophysics: Plate tectonics
  • Cryosphere: Remote sensing
  • Cryosphere: Ice
  • Marine Geology and Geophysics: Gravity and isostasy
Abstract
Cited By (3)
 

Abstract

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 113, B05408, 12 PP., 2008
doi:10.1029/2007JB005217

Arctic Ocean gravity field derived from ICESat and ERS-2 altimetry: Tectonic implications

David C. McAdoo

NOAA Laboratory for Satellite Altimetry, Silver Spring, Maryland, USA

Sinead Louise Farrell

NOAA Laboratory for Satellite Altimetry, Silver Spring, Maryland, USA

Centre for Polar Observation and Modelling, University College London, London, UK

Seymour W. Laxon

Centre for Polar Observation and Modelling, University College London, London, UK

H. Jay Zwally

Cryospheric Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

Donghui Yi

SGT, Inc., NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

Andy L. Ridout

Centre for Polar Observation and Modelling, University College London, London, UK

A new, detailed marine gravity field for the persistently ice-covered Arctic Ocean, derived entirely from satellite data, reveals important new tectonic features in both the Amerasian and Eurasian basins. Reprocessed Geoscience Laser Altimeter System (GLAS) data collected by NASA's Ice Cloud and land Elevation Satellite (ICESat) between 2003 and 2005 have been combined with 8 years worth of retracked radar altimeter data from ESA's ERS-2 satellite to produce the highest available resolution gravity mapping of the entire Arctic Ocean complete to 86°N. This ARCtic Satellite-only (ARCS) marine gravity field uniformly and confidently resolves marine gravity to wavelengths as short as 35 km. ARCS relies on a Gravity Recovery and Climate Experiment (GRACE)-only satellite gravity model at long (>580 km) wavelengths and plainly shows tectonic fabric and numerous details imprinted in the Arctic seafloor, in particular, in the enigmatic Amerasian Basin (AB). For example, in the Makarov Basin portion of the AB, two north-south trending lineations are likely clues to the highly uncertain seafloor spreading history which formed the AB.

Received 8 June 2007; accepted 18 January 2009; published 23 May 2008.

Citation: McAdoo, D. C., S. L. Farrell, S. W. Laxon, H. J. Zwally, D. Yi, and A. L. Ridout (2008), Arctic Ocean gravity field derived from ICESat and ERS-2 altimetry: Tectonic implications, J. Geophys. Res., 113, B05408, doi:10.1029/2007JB005217.

Cited By

Please wait one moment ...