Remote sensing retrieval for chlorophyll-a concentration in turbid case II waters (II): application on MERIS image

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Remote sensing retrieval for chlorophyll-a concentration in turbid case II waters (II): application on MERIS image
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Affiliation:State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences
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Abstract:

Based on four filed cruises from 2004 to 2010 in Tai Lake, four models were investigated in the present study, including two-ration-model (TRM), three-band-model (TBM), enhanced three-band-model (ETM) and four-band model (FBM) using in situ measurements and MERIS image data. The validation was performed using samples from Taihu (n=13) and Chaohu Lake (n=21). The results demonstrated that the ETM was the most appropriate to estimate chlorophyll a concentration in highly turbid waters with higher R2(0.34~0.94) and lower RMSE (3.17~8.70 μg/L). Furthermore, the lookup table of the molding input parameters was determined for the four seasons in Taihu Lake. The resultant model was applied to MERIS images (8, 9 and 10 waveband) to detect the temporal and spatial variations of chlorophyll a concentration in Tai Lake.

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Jiang Guang-Jia, Zhou Lin, Ma Rong-Hua, Duan Hong-Tao, Shang Lin-Lin, Rao Jia-Wang, Zhao Chen-Lu. Remote sensing retrieval for chlorophyll-a concentration in turbid case II waters (II): application on MERIS image[J]. Journal of Infrared and Millimeter Waves,2013,32(4):372~378

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Received:March 19,2012
Revised:October 26,2012
Adopted:July 10,2012
Online: August 29,2013
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