摘要
The correlation between water quality parameters and hyper-spectral reflectance is studied with models established for each parameter and applied in Dianshan Lake, in the upstream of the Huangpu River running through Shanghai, China. Models are for dissolved oxygen (DO in mg/L): R720/R680 = 20.362×(R720/R680)2?31.438×(R720/R680)+19.156; for turbidity (NTU): R*714.5 = 206.07× (R*714.5)2?582.5×R*714.5 + 423.24; and for total phosphorus (TP in mg/L): R*509.5 = 16.661× (R*509.5)2?32.646×R*509.5+16.116. The R2 values are 0.770 8, 0.660 4 and 0.738 7, respectively, showing strong positive relationships. The models were then applied to assess water quality of different times. Results are quite satisfactory for some samples.
The correlation between water quality parameters and hyper-spectral reflectance is studied with models established for each parameter and applied in Dianshan Lake, in the upstream of the Huangpu River running through Shanghai, China. Models are for dissolved oxygen （DO in mg/L）： R720/R680 = 20.362×（R720/R680）^2-31.438×（R720/R680）＋19.156; for turbidity （NTU）： R^＊714.5 = 206.07×（R^＊714.5）^2-582.5×R^＊714.5 ＋ 423.24; and for total phosphorus （TP in mg/L）： R^＊5095= 16.661×（R^＊509.5）^2-32.646×R^＊509.5＋16.116. The R2 values are 0.770 8, 0.660 4 and 0.738 7, respectively, showing strong positive relationships. The models were then applied to assess water quality of different times. Results are quite satisfactory for some samples.
基金
Supported by the National Science and Technology Infrastructure Program of China (No. 2006BAJ08B02)
Students Innovation Training Program of Tongji University
