Arctic sea ice freeboard determination from CryoSat-2 satellite altimetry data

doi:10.13474/j.cnki.11-2246.2019.0220

测绘通报 ›› 2019, Vol. 0 ›› Issue (7): 64-68.doi: 10.13474/j.cnki.11-2246.2019.0220

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Arctic sea ice freeboard determination from CryoSat-2 satellite altimetry data

WU Xingquan, ZHANG Shengjun, CHE Defu

School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China

Received:2018-10-18 Revised:2019-03-16 Online:2019-07-25 Published:2019-07-31

Abstract

Abstract: The technology of satellite altimetry has made it possible to detect sea ice at large spatial scales, while the retrieved sea ice freeboard is a key parameter for inverting sea ice thickness. Moreover, obtaining accurate freeboard is significant for sea ice detection and the understanding of global climate change. Based on the CryoSat-2 satellite SAR mode altimetry data accumulated in the past three years, this paper selectes the available observation data by setting thresholds in the Arctic within the 60°N-88°N latitude zone, and calculates the average monthly sea ice freeboard during 2015-2017. The results of the calculated freeboard in the research region are reliable according to the verification with the space-time matched measurements of IceBridge projects.

Key words: satellite altimetry, sea ice freeboard, CryoSat-2, SAR mode

CLC Number:

P228

WU Xingquan, ZHANG Shengjun, CHE Defu. Arctic sea ice freeboard determination from CryoSat-2 satellite altimetry data[J]. 测绘通报, 2019, 0(7): 64-68.

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Arctic sea ice freeboard determination from CryoSat-2 satellite altimetry data

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