Because the Surface-Waters are polluted with different pollution types and degrees, the characteristics of reflectance spectrum for them are different. These differences can be actually recorded on the color aerophotograph by the form of color density difference. The correlation between the reflective color density ratio of the surfacewater image on the color aerophotograph and the combined pollution index of the water is emphatically studied in this paper. The statistical relationship between them is given. so, It is possible to determine semiquantitatively the combined pollution degree of the surface-water based on color aerophotograph.
刘守祺, 徐彭令. 地表水体影像的色密度比值及与综合污染指数的半定量关系[J]. 国土资源遥感, 1993, 5(1): 8-12,54.
Liu Shouqi, Xu Pengling. SEMIQUANTITATIVE RELATION BETWEEN COLOR DENSITY RATIO OF SURFACE WATER IMAGE AND ITS COMBINED POLLUTION INDEX. REMOTE SENSING FOR LAND & RESOURCES, 1993, 5(1): 8-12,54.