Polar sea ice concentration retrieval based on FY-3C microwave radiation imager data

Liu Sen; Zou Bin; Shi Lijian; Cui Yanrong

doi:10.3969/j.issn.0253-4193.2020.01.012

Volume 42 Issue 1

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Liu Sen，Zou Bin，Shi Lijian, et al. Polar sea ice concentration retrieval based on FY-3C microwave radiation imager data[J]. Haiyang Xuebao，2020, 42(1)：113–122，doi:10.3969/j.issn.0253−4193.2020.01.012

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Polar sea ice concentration retrieval based on FY-3C microwave radiation imager data

doi: 10.3969/j.issn.0253-4193.2020.01.012

Liu Sen^{1, 2
,},
Zou Bin^{2, 3
,
,},
Shi Lijian^{2, 3},
Cui Yanrong⁴

1.
National Marine Environmental Forecasting Center, Beijing 100081, China
2.
National Satellite Ocean Application Service, Beijing 100081, China
3.
Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing 100081,China
4.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China

Received Date: 2018-11-29
Rev Recd Date: 2019-02-21

Available Online: 2021-04-21

Publish Date: 2020-01-25

Abstract

Abstract

Polar sea ice affects atmospheric and ocean circulation and it plays an important role in global climate change. The sea ice concentration is one of the important parameters to characterize the temporal and spatial variation of sea ice. The retrieval algorithm of sea ice concentration based on brightness temperature data of FY-3C microwave radiation imager in the polar region was studied. After the time-space matching and linear regression, FY-3C microwave radiometers brightness temperature data was corrected. The atmospheric effects were reduced using two weather filters and sea ice mask. A minimum ice concentration array used in the procedure reduced the land-to-ocean spillover effect. The sea ice concentration product was validated by calculating Arctic and Antarctic sea ice extent and area in 2016−2017. The sea ice extent and area trends of this two years were basically consistent with the NSIDC product, with an average difference of 3%. This research laid the foundation for the release of the polar sea ice concentration business products of China's autonomous satellites, and the products guarantee the continuity of crucial polar sea ice record that might soon be interrupted.
- FY-3C,
- sea ice concentration,
- microwave radiation imager,
- Arctic,
- Antarctic

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References(22)

References

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