Research on Arctic Sea Ice Freeboard Derived from ICESat/GLAS
Abstract Arctic sea ice freeboards during autumns and winters between October 2003 and March 2008 are determined using ICESat laser altimetry data; the results are consistent with foreign research. Trends derived from freeboard results show a decline of about 2.3 cm each year, which is faster than suggested by previous research. Obvious systematic error is shown in the comparison of ICESat derived Arctic sea ice freeboards obtained by different author and methods. This systematic error is analyzed. The results show that the window size of height filtering, the range of sea surface height determination, and the method of sea surface observation filtering, all lead to biases of several centimeters in freeboard calculation.
Key words :
ICESat/GLAS
Arctic sea ice
freeboard
lowest-level filtering
waveform
Cite this article:
CHEN Guodong,LI Jiancheng,HUANG Tian. Research on Arctic Sea Ice Freeboard Derived from ICESat/GLAS[J]. jgg, 2017, 37(12): 1291-1296.
CHEN Guodong,LI Jiancheng,HUANG Tian. Research on Arctic Sea Ice Freeboard Derived from ICESat/GLAS[J]. jgg, 2017, 37(12): 1291-1296.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2017/V37/I12/1291
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