Seasonal and interannual variation of thinkness and volume of the Arctic sea ice based on CryoSat-2 during 2010-2017

Ke Changqing; Wang Manman

doi:10.3969/j.issn.0253-4193.2018.11.001

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Ke Changqing, Wang Manman. Seasonal and interannual variation of thinkness and volume of the Arctic sea ice based on CryoSat-2 during 2010-2017[J]. Haiyang Xuebao, 2018, 40(11): 1-13. doi: 10.3969/j.issn.0253-4193.2018.11.001

Citation:

Ke Changqing, Wang Manman. Seasonal and interannual variation of thinkness and volume of the Arctic sea ice based on CryoSat-2 during 2010-2017[J]. Haiyang Xuebao, 2018, 40(11): 1-13. doi: 10.3969/j.issn.0253-4193.2018.11.001

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Seasonal and interannual variation of thinkness and volume of the Arctic sea ice based on CryoSat-2 during 2010-2017

doi: 10.3969/j.issn.0253-4193.2018.11.001

School of Geographic & Oceanographic Sciences, Nanjing University, Nanjing 210023, China

Received Date: 2018-01-19
Rev Recd Date: 2018-03-15

Abstract

Abstract

The changes of the Arctic sea ice affect the global material balance, energy exchange and climate change. Here we analyzed the seasonal and interannual variation of sea ice area, thickness and volume in the Arctic during 2010-2017 based on CryoSat-2 measurements and OSI SAF sea ice concentration and sea ice type products. We discussed the effects of sea surface air temperature anomalies and summer wind field anomalies on Arctic sea ice combined with the NCEP/NCAR reanalysis data. The results show that the increase of sea ice area has large fluctuations during freezing period, while the increase of thickness shows declined tendency. The decrease of sea ice thickness fluctuates during melting period, while the decrease of sea ice area accelerates year by year after 2013. The change trend of sea ice volume is more similar to that of sea ice area, and the reduced rate of melting season is larger than the increased rate of freezing season. The atmospheric temperature anomaly of the Arctic sea surface during the melting season is positively correlated with the amount of sea ice melting. The summer wind field affects the convergence and divergence of sea ice and plays an important role in the transport of sea ice in the Fram Strait. It promotes the transport of warm surface water in the Arctic Ocean to the deep ocean.
- CryoSat-2,
- sea ice area,
- thickness,
- volume,
- freezing period,
- melting period,
- Arctic

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References(37)

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