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

被引：4

作者：

Jiang Guang-Jia ^{[1
]}

Zhou Lin ^{[1
,2
]}

Ma Rong-Hua ^{[1
]}

Duan Hong-Tao ^{[1
]}

Shang Lin-Lin ^{[1
,2
]}

Rao Jia-Wang ^{[1
,2
]}

Zhao Chen-Lu ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF INFRARED AND MILLIMETER WAVES | 2013年 / 32卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Tai Lake; chlorophyll a; inland waters; specific absorption coefficient; OCEAN-COLOR; LAKE; QUALITY; TEMPERATURE; MODEL;

D O I：

10.3724/SP.J.1010.2013.00372

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 R-2 (0.34 similar to 0.94) and lower RMSE (3.17 similar to 8.70 mu g/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.

引用

页码：372 / 378

页数：7