Monitoring the Seasonal Distribution Pattern of Chlorophyll-a Concentration in Taihu Lake Based on CBERS-1 Imageries
ZHOU Lian-cheng1,2, CHEN Jun1,2*, SUN Ji-hong1,2, FU Jun1,2
1. The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao 266071, China 2. Qingdao Institute of Marine Geology, Qingdao 266071, China
Abstract：Chlorophyll-a concentration is an important indicator for estimating the eutrophication degree of a lake. Taking advantage of the water qualities experimental data on 27 and 28 October, 2003, the paper constructs the chlorophyll-a concentration estimating model for Taihu Lake, China. And then, the study uses this chlorophyll-a concentration estimation model to estimate the seasonal distribution pattern of chlorophyll-a concentration from CBERS-1 imageries on 5 April, 28 April, 16 May, 5 August, and 30 October of 2006, and 5 July, 2007. According to the research results, it was found that the chlorophyll-a concentration is lower in summer and higher in autumn and winter, and could illuminate the four stages of phytoplankton growth in a year; Compared with the previous study reports, the chlorophyll-a concentration is higher than the actual concentration by estimating from the CBERS-1. There are still some problems for applying the CBERS-1 imageries to water qualities remote sensing, which should be improved by further study.
Key words：Chlorophyll-a;Remote sensing;Seasonal distribution pattern;Taihu Lake
周连成1，2，陈 军1,2*, 孙记红1,2, 付 军1,2 . 基于CBERS-1影像监测太湖叶绿素a浓度的季节分布状况 [J]. 光谱学与光谱分析, 2011, 31(02): 530-534.
ZHOU Lian-cheng1,2, CHEN Jun1,2*, SUN Ji-hong1,2, FU Jun1,2 . Monitoring the Seasonal Distribution Pattern of Chlorophyll-a Concentration in Taihu Lake Based on CBERS-1 Imageries. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(02): 530-534.
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