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You are here : eLibrary : Ice Research and Engineering : 22nd Symposium_Singapore (2014) : THEME 1- CLIMATE CHANGE IMPACTS ON THE CRYOSPHERE : REDUCTION IN THE NUMBER AND DRAFT OF RIDGES IN THE TRANSPOLAR DRIFT IN THE FRAM STRAIT DURING 2006-2...
REDUCTION IN THE NUMBER AND DRAFT OF RIDGES IN THE TRANSPOLAR DRIFT IN THE FRAM STRAIT DURING 2006-2011
Author : Ole-Christian Ekeberg , Knut H?yland , Edmond Hansen and Mark Tschudi
The present study identified ice ridges from upward looking sonar data from the period 2006-2011 in the Fram Strait. During this period there has been a decrease in the fraction of ice deeper than 5 m. This is a reduction in the part of the ice which typically is deformed and thus the change is primarily within the ridged part of the ice population. Ridges were identified using the Rayleigh criterion with a threshold of 2.5 m and a minimum draft of 5 m. Both the number of ridges (- 204 to -792 ridges/year) and the mean draft (-7.2 to -13.2 cm/year) decreased during the period 2006-2011. We argue that an increasing fraction of first-year ridges - a result of the recent basin
File Size : 4,091,205 bytes
File Type : Adobe Acrobat Document
Chapter : Ice Research and Engineering
Category : 22nd Symposium_Singapore (2014)
Article : THEME 1- CLIMATE CHANGE IMPACTS ON THE CRYOSPHERE
Date Published : 13/07/2016
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