浑浊II类水体叶绿素a浓度遥感反演(II):MERIS遥感数据的应用
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中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室,中国科学院南京地理与湖泊研究所 湖泊与环境国家重点实验室

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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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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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    摘要:

    基于2004~2010年太湖4次野外观测数据,结合MERIS遥感资料,评价两波段、三波段、改进三波段和四波段4个模型在浑浊II类水体叶绿素a浓度估算的精度,并利用太湖(13个有效样点)以及巢湖(21个有效样点)进行模型验证.结果表明,改进三波段模型反演叶绿素a浓度较高,更适于浑浊II类水体叶绿素a浓度的遥感反演,决定系数R2在0.34~0.94之间变化,RMSE变化范围为: 3.17~8.70 μg/L.分季节率定改进三波段模型参数,并建立太湖水体春、夏、秋、冬季的模型输入参数查找表,最终将改进三波段模型应用于MERIS遥感影像(8、9、10波段),获取太湖水体叶绿素a浓度的空间分布和年内、年际变化.

    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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姜广甲,周琳,马荣华,段洪涛,尚琳琳,饶加旺,赵晨露.浑浊II类水体叶绿素a浓度遥感反演(II):MERIS遥感数据的应用[J].红外与毫米波学报,2013,32(4):372~378]. 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]. J. Infrared Millim. Waves,2013,32(4):372~378.]

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  • 收稿日期:2012-03-19
  • 最后修改日期:2012-10-26
  • 录用日期:2012-07-10
  • 在线发布日期: 2013-08-29
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