APPLICATION OF REMOTE SENSING DATA FOR REGIONAL ENVIRONMENT ANALYSIS

本研究的目的是调查遥感数据在区域环境信息分析和评价中的可用性，并开发有效利用遥感数据的方法。结果内容总结如下：(1)针对飞机MSS图像，提出了扫描方向噪声去除方法和飞行方向广域图像几何应变校正新方法。(2)为了从遥感数据中估算土壤含水量，通过多变量分析研究了光谱反射率与土壤类型、植被类型、植被活力等的关系。(3)采用Moriyama分步方法，提高了Landsat TM数据像元中地表覆盖物质混合比的推定精度。(4)利用飞机遥感资料估算了熊本市土地覆被率和地表温度的分布，并与气温分布进行了比较。(5)研究了城市街道形态（建筑尺寸、建筑高度、建筑地比等）检测结果与Landsat TM影像纹理的关系。并对熊本市每250m mesh区域的建筑地比、建筑容积率、建筑数和建筑平均层数进行了假设。(6)熊本县的Landsat TM图像由4个场景数据组成。根据边界坐标计算各行政区域的土地覆被率，并与熊本市的实际调查数据进行比较。

The purpose of this study is the investigation of the availability of remote sensing data for analysis and appraisement of regional environment informations, also development of methods to use the remote sensing data effectively.Content of results is summarized as follows.(1) About the MSS image from airplane, the removal method of the noise in scanning direction and the new method to correct the geometric strain of wide area image for the flight direction were proposed.(2) In order to estimate the water content of soil from remote sensing data, the relationship between the spectral reflectance and the kind of soil, the kind of vegetation, the vitality of vegetation and so on was investigated by the multivariate analysis.(3) By using the Moriyama's method in steps, the presumption accuracy of mixing ratio of land-covering materials in a pixel of Landsat TM data was improved.(4) The distribution of land-cover ratio and surface temperature in Kumamoto city were estimated by remote-sensing data from airplane and they were compared with the distribution of air temperature.(5) The relationships between the examination results of urban street form (the size of building, the height of building, the building-to-land ratio and so on) and the texture of Landsat TM image were investigated. And the building-to-land ratio, the rate of building volume to lot, the number of buildings and the average story of buildings were presumpted about each 250m mesh area in Kumamoto city.(6) The Landsat TM image of Kumamoto Prefecture was made from four scenes data. The land-cover ratios in each administration area were calculated from the boundary coordinates and the results were compared with actual survey data in Kumamoto city.