摘要
本研究从原理方法上分析、讨论、比较了红外单波段和色度判别法识别水体的结果,并引进了“比率测算”法,大大提高了判读精度。
Water resource planers and managers must understand the water bady distribution such as ponls, pools, lakes and reservoirs within the research area for making more effective use of water resources. Remote sensing technigues of satellite has provided us new data contahing above information. But, due to limitation of pixel resolution characteristics of Landsat, those smaller water bodies distributed widely over our country can't be effectively extracted.In view of the situation, this paper concretely analyses and discusses principle and results of two water body interpretation methods by single near-infrared and Landsat chromaticity coordinates techniques, based on Landsat CCT data.At last, a 'proportion Estimation' method is introduced. It not only distinguishes smaller water bodies, but improves area accuracy of interpretation compared with the results at the same experimental watershed.
出处
《环境遥感》
CSCD
1992年第1期17-23,共7页
