PRELIMINARY RESULTS OF SEA ICE FREEBOARD MEASUREMENTS OF BEAUFORT SEA FROM CRYOSAT-2 ALTIMETRY

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Zhang, S.^1¹ 

[1] Chinese Antarctic Center of Surveying and Mapping, Wuhan University, 430079 Wuhan, China^1

关键词: Arctic;    Sea Ice;    Beaufort Sea;    Freeboard;    CryoSat-2;   

DOI  :  10.5194/isprs-archives-XLII-2-W13-1811-2019

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

Satellite altimetry has been used to observe the Arctic sea ice in long term and large scale, and the records show a continued decline for Arctic sea ice thickness over decades. In this study, the sea ice freeboard in Beaufort Sea of Arctic have been estimated using CryoSat-2 data, and validated with Upward Looking Sonar (ULS) data of Beaufort Gyre Exploration Project (BGEP). The results show an obvious seasonal variation of the Beaufort Sea with a high reliability estimation of the sea ice freeboard. The average height of the sea ice freeboard increase from January to March and achieve the maximum value 0.38 m in March. The sea ice melts after March and the average height of the sea ice freeboard reduces to the minimum 0.12 m in August. In the next few months the sea water begins to freeze and the average height of the sea ice freeboard will increase to the maximum value.

【 授权许可】

CC BY