globalchange  > 气候变化事实与影响
DOI: 10.1016/j.jag.2017.06.009
Scopus记录号: 2-s2.0-85032212795
论文题名:
Tracing high time-resolution fluctuations in dissolved organic carbon using satellite and buoy observations: Case study in Lake Taihu, China
作者: Huang C; , Yunmei L; , Liu G; , Guo Y; , Yang H; , Zhu A; -X; , Song T; , Huang T; , Zhang M; , Shi K
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 62
起始页码: 174
结束页码: 182
语种: 英语
英文关键词: Carbon cycle ; Dissolved organic carbon ; Geostationary ocean color imager (GOCI) ; Lake Taihu ; Optical properties
Scopus关键词: carbon cycle ; concentration (composition) ; dissolved organic carbon ; GOCI ; observational method ; optical property ; remote sensing ; satellite data ; water quality ; China ; Taihu Lake ; algae
英文摘要: Field measurements of dissolved organic carbon (DOC) concentration and remote-sensing reflectance were conducted to develop a regional, empirical red-blue algorithm to retrieve surface DOC from Geostationary Ocean Color Imager (GOCI) data for Lake Taihu, China. The auxiliary data (in-situ observations of the optical properties and water quality, buoy measurements of hydrodynamic data and water chemical parameters) were used to investigate the spatial and temporal variations in DOC. GOCI was shown to be capable of successfully obtaining hourly variations in DOC, with a root mean square error percentage (RMSP) of 17.29% (RMSE = 0.69 mg/L) for the match-up data. The GOCI-derived DOC in Lake Taihu confirms that the highest DOC concentration is in northwest Lake Taihu, followed by Meiliang Bay, Gonghu Bay and northeast Lake Taihu. Hourly DOC variation is significant and presents a different trend for each lake segment due to the variety of influencing factors. Discharge of DOC from surrounding rivers is an important factor to the variation of DOC in northeast Lake Taihu. However, organic products of algae will be the primary contributor to DOC when algal bloom occurred. During the period of algal bloom, high DOC levels in Lake Taihu can lead to hypoxia when coupled with high temperatures and low disturbance. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79994
Appears in Collections:气候变化事实与影响

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作者单位: Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University, Nanjing, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China; Northeast Institute of Geography and Agroecology, CAS, Changchun, China; College of Resources and Environmental Sciences, Henan Agricultural UniversityHenan, China; Department of Geography, University of Wisconsin, Madison, WI, United States; Environmental Monitoring Center, Wuxi, China; Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China

Recommended Citation:
Huang C,, Yunmei L,, Liu G,et al. Tracing high time-resolution fluctuations in dissolved organic carbon using satellite and buoy observations: Case study in Lake Taihu, China[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,62
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