caa a22 4500 445300485 CHVBK 20180317142556.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1007/s11430-010-4132-7 doi (NATIONALLICENCE)springer-10.1007/s11430-010-4132-7 Estimation of suspended sediment concentration based on bio-optical mechanism and HJ-1 image in Chaohu Lake [Elektronische Daten] [Qiao Wang, Xin Jin, YunMei Li, ChuanQing Wu, Heng Lü, YanFei Wang, Hong Zhang, Bin Yin, Li Zhu] Synchronization experiment was conducted in June, 2009 to get Inherent Optical Properties (IOP) of water component in Chaohu Lake. Water bio-optical mechanism was studied combined with multispectral data of Environmental Satellite 1 (CCD), and then inversion models of total suspended matter (TSM), inorganic suspended matter (ISM) and organic suspended matter (OSM) concentration were built. The data indicated that: the absorption ratio of suspended particulate matter and CDOM to total were almost no change from band 1 to band 2 with about 85% and 9%, respectively. The ratio of pure water to total increased from 0.4% to 5.6%. Water reflectance in these two bands were influenced by absorption of three kinds of components: algae particles absorption surpassed non-algal particles in band 3, and so played an important role in total absorption with about 35.7%; the proportion of pure water absorption and particles matter backscattering both were 99% in band 4, so these two components decided the main inherent optical properties in band 4. The models of TSM and ISM concentration inversion based on band combination (band 3 + band 4)/(band 1 + band 2) were built, while OSM concentration was estimated by band 4/(band 1 + band 2) index. Inversed by image data, RE of TSM concentration between modeled and measured was 33.4%, and RMSE was 18.68 mg/L. RE of ISM and OSM concentration were 39.9% and 35.2% respectively. The inversion was more accurate when satellite-ground data were just in the same day. At this situation, RE of ISM concentration dropped to 25.4%, and that of TSM and OSM reduced to 26.5% and 26.8% as well. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 HJ-1 Satellite nationallicence bio-optical property nationallicence Chaohu Lake nationallicence suspended matter nationallicence Wang Qiao Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut Jin Xin Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Li YunMei Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Wu ChuanQing Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut Lü Heng Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Wang YanFei Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Zhang Hong Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Yin Bin Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut Zhu Li Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut Science China Earth Sciences SP Science China Press 53(2010-12-01), 58-66 1674-7313 53<58 2010 53 11430 https://doi.org/10.1007/s11430-010-4132-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-4132-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Qiao Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut NATIONALLICENCE 700 1- Jin Xin Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Li YunMei Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Wu ChuanQing Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut NATIONALLICENCE 700 1- Lü Heng Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Wang YanFei Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Zhang Hong Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Yin Bin Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, 210046, Nanjing, China aut NATIONALLICENCE 700 1- Zhu Li Satellite Environment Center, Ministry of Environmental Protection, 100029, Beijing, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53(2010-12-01), 58-66 1674-7313 53<58 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer