Geological Zoning of Tideland Sediments by a Combination of Sample Reflectance and Satellite Remote Sensing
For detecting spatio-temporal changes of tideland environments in a closed sea by remote sensing technique, geological zoning is proposed based on the surface reflectance spectra from visible to short wave infrared wavelength. The spectra are characterized by sample measurements and satellite image data analyses. The measurements clarify that the spectra patterns, which are the increase degree of reflectance with wavelength and the existence of reflectance absorption, are attributable to die mineral composition and that the magnitudes of reflectance are determined by particle size of the sediments. In general, the spectra are classified into two types which are mainly located around two river mouths. We present effectiveness of two-band ratio processing and color composite using ASTER image data for the geological zoning. The zoning is also investigated by a kriging method using the semivariogram of the average reflectance of image data and the category data depending on the spectral pattern at the sample locations. The kriging map can contribute to interpret the extent of sediments bearing similar particle size and main constituent minerals.
Katsuaki Koike Yuya Oda Tohru Yoshinaga Chunxue Liu Fumihiko Yamada
Graduate School of Science and Technology, Kumamoto University, 2-39-1, Kurokami, Kumamoto 860-8555, Technical Division, Faculty of Engineering, Kumamoto University
国际会议
The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)
北京
英文
469-472
2007-08-26（万方平台首次上网日期，不代表论文的发表时间）