title: [Monitoring the seasonal distribution pattern of chlorophyll-a concentration in Taihu Lake based on CBERS-1 imageries].
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 CBERS1. There are still some problems for applying the CBERS-1 imageries to water qualities remote sensing, which should be improved by further study.
authors.affiliation: The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao 266071, China. gisqd@vip.sina.com
authors.forename: Lian-Cheng
authors.initials: LC
authors.lastname: Zhou
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
authors.forename: Ji-Hong
authors.initials: JH
authors.lastname: Sun
authors.forename: Jun
authors.initials: J
authors.lastname: Fu
mesh_terms: D002681:China; D002734:Chlorophyll / Q000032:analysis*; D000077194:Chlorophyll A; D004784:Environmental Monitoring / Q000379:methods; D060106:Lakes / Q000032:analysis*; D012621:Seasons; D013057:Spectrum Analysis / Q000379:methods*; D013686:Telemetry
chemical_list: D002734:Chlorophyll; D000077194:Chlorophyll A