文档介绍：第 13 卷第 5 期南水北调与水利科技 V N o. 5
20t he ident ificatio n
of hig h hy perspectral bands sensitiv e to w ater turbidity, the o riginal spectral reflectance model, normalized spectral reflectance
model, band ratio mo del, and first deriv ativ e mo del were built and verified respect ively. T he results sho wed that the det ermina2
tive coefficients of the four mo dels are all above 0. 75, and the no rmalized reflect ance model in 825 nm and band ratio model of
prov ide a hig her precisio n to est imate wat er turbidity with the RM SE o f 28. 79 N T U and 24. 23 N T U , respectively . T heresult2
soft hestudy canpro vide t he technicalsuppo rt forthebusiness2oriented manag ement oflarg e2area water turbidit y remote sensing
monitoring in t he N ansiLake.
Key words: Nansi L ake; remo te sensing; turbidity; hyperspectral; inversion
南四湖位于淮河流域北部, 东、西、北三面承接苏、鲁、重影响南四湖附近居民的生活和养殖业。全面监测南四湖
豫、皖 4 省 32 个县( 市) 的来水, 流域面积 31 17 万 km 2, 是我水体水质对南水北调东线工程的顺利实施和保障南四湖周
国北方最大的淡水湖, 同时也是南水北调东线工程重要的水边居民的饮用水安全具有重要意义。
源地和调蓄湖泊, 具有防洪、排涝、灌溉、供水、养殖、通航及浊度是评价湖泊水质的一个重要指标, 浊度大小直接影
旅游等多种功能, 其水质好坏直接影响着/ 一湖清水向