基于遥感影像的煤矿沉陷区水深反演研究

目前,用遥感研究水深多集中于沿海及内陆水域,煤矿塌陷地水深反演研究很少。本文以徐州九里塌陷湖为例,通过分析水深值与水体反射率的关系,得到各单因子的线性、非线性反演模型,经分析其误差相对较大;选取各水深分段内误差较小的因子,最终建立多元回归模型,其绝对误差、相对误差均优于单因子模型。

Water Depth Retrieval of Coal Mining Subsidence Area Based on Remote Sensing Image

At present,studies on water depth using remote sensing are concentrated in the coastal and inland waters,but little in water depth retrieval models in subsidence area.Take Lake Jiuli as an example to analyze the relationship between water depth and water reflectivity to get linear and non-linear models about the single factor,but the error is relatively large.Then,the factors with minor error will be selected to establish multiple regression models,and the absolute error and relative error are better than the single-factor models.