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Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008 by R. Kwok; G. F. Cunningham; M. Wensnahan; I. Rigor; H. J. Zwally; D. Yi is a Earth and Planetary Sciences article available to read on EtoBox.

What is Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008 about?

We present our best estimate of the thickness and volume of the Arctic Ocean ice cover from 10 Ice, Cloud, and land Elevation Satellite (ICESat) campaigns that span a 5‐year period between 2003 and 2008. Derived ice drafts are consistently within 0.5 m of those from a submarine cruise in mid‐November of 2005 and 4 years of ice draft profiles from moorings in the Chukchi and Beaufort seas. Along with a more than 42% decrease in multiyear (MY) ice coverage since 2005, there was a remarkable thinning of ∼0.6 m in MY ice thickness over 4 years. In contrast, the average thickness of the seasonal ice in midwinter (∼2 m), which covered more than two‐thirds of the Arctic Ocean in 2007, exhibited a negligible trend. Average winter sea ice volume over the period, weighted by a loss of ∼3000 km^3^ between 2007 and 2008, was ∼14,000 km^3^. The total MY ice volume in the winter has experienced a net loss of 6300 km^3^ (>40%) in the 4 years since 2005, while the first‐year ice cover gained volume owing to increased overall area coverage. The overall decline in volume and thickness are explained almost entirely by changes in the MY ice cover. Combined with a large decline in MY ice coverage over

Who reads Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008?

Author

R. Kwok; G. F. Cunningham; M. Wensnahan; I. Rigor; H. J. Zwally; D. Yi

Publisher

American Geophysical Union (AGU)

Published

2009

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)