ランドサットTMデータを利用した与論島の地下水資源調査

概要

論文の詳細を見る
A model equation for estimating the ground water levels using Landsat TM data was examined in this paper, based on the results of site investigation of land cover contexts and ground water levels in Yoron Island. Firstly, land cover classification was conducted by supervised classification and the monitoring wells sited in agricultural areas were extracted. The data collected in these wells was used for estimating the ground water levels as the site investigation data. Next, a model equation for estimating the ground water levels was created by inter-band calculations among the CCT values of the TM data as independent variables in the multiple regression analysis. The validity of this model equation was proved by applying it to the other monitoring wells where the collected data was not used for creating the equation. Then, the model equation was found out to be generally applicable for estimating the ground water levels within the limits of approximately 5-20m.