Study on the multi-band retrieval algorithm for the Bohai Sea ice concentration using AVHRR data

Liu Zhiqiang; Su Jie; Shi Xiaoxu; Zhao Jinping

doi:10.3969/j.issn.0253-4193.2014.11.009

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Article Navigation > Haiyang Xuebao > 2014 > 36(11): 74-84

Liu Zhiqiang, Su Jie, Shi Xiaoxu, Zhao Jinping. Study on the multi-band retrieval algorithm for the Bohai Sea ice concentration using AVHRR data[J]. Haiyang Xuebao, 2014, 36(11): 74-84. doi: 10.3969/j.issn.0253-4193.2014.11.009

Citation:

Liu Zhiqiang, Su Jie, Shi Xiaoxu, Zhao Jinping. Study on the multi-band retrieval algorithm for the Bohai Sea ice concentration using AVHRR data[J]. Haiyang Xuebao, 2014, 36(11): 74-84. doi: 10.3969/j.issn.0253-4193.2014.11.009

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Study on the multi-band retrieval algorithm for the Bohai Sea ice concentration using AVHRR data

doi: 10.3969/j.issn.0253-4193.2014.11.009

1.
College of Environmental Oceanography, Ocean University of China, Qingdao 266100, China
2.
College of Environmental Oceanography, Ocean University of China, Qingdao 266100, China;Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received Date: 2014-03-09

Abstract

Abstract

To achieve the improved retrieval parameter of sea ice concentration(SIC) in the Bohai Sea,spectral characteristics of different types of sea ice are obtained and analyzed using in-situ ASD measurements in the Liaodong Bay. Appropriate threshold is thus determined for the retrieval of AVHRR data and then the SIC is calculated. In this paper,muti-band retrieval algorithm based on linear spectral mixture model (LSMM) is used for conducting a series of band experiments. The retrieved SIC using LandSat5-TM data is used to compare with the AVHRR SIC of different combinational algorithms. The results of error quantitative analysis indicate that the mean error (ME) of the algorithms involving band1 is positive,but the ME turns to negative when the algorithms involve band2 instead of band1; the ME of the algorithms which include both of two bands is less than the those which include only band1 or band2; among these algorithms,the 1245 joint-band algorithm has the minimum errors:it is concluded that the 1245 joint-band algorithm can be used for the retrieval of AVHRR SIC in the Bohai Sea.
- Bohai Sea,
- SIC retrieval,
- LSMM,
- NOAA-AVHRR,
- LandSat5-TM

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References(20)

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