The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLII-2/W13
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W13, 1811–1815, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W13-1811-2019
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W13, 1811–1815, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W13-1811-2019

  05 Jun 2019

05 Jun 2019

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

S. Zhang, Y. Zuo, F. Xiao, L. Yuan, T. Geng, and Y. Xuan S. Zhang et al.
  • Chinese Antarctic Center of Surveying and Mapping, Wuhan University, 430079 Wuhan, China

Keywords: Arctic, Sea Ice, Beaufort Sea, Freeboard, CryoSat-2

Abstract. 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.