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

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 wit...

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Bibliographic Details
Published in:The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Main Authors: S. Zhang, Y. Zuo, F. Xiao, L. Yuan, T. Geng, Y. Xuan
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2019
Subjects:
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Applied optics. Photonics
TA1501-1820
Arctic
Beaufort Sea
Sea ice
Online Access:https://doi.org/10.5194/isprs-archives-XLII-2-W13-1811-2019
https://doaj.org/article/d1aba70d378a4be2a7833683274e2947
Description
Summary: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.

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