Environmental monitoring in East Asia using high spatial resolution satellite.

尽管东亚的植被在空间和时间尺度上差异很大，但由于人类活动和环境影响，有迹象表明其迅速退化。为了监测环境特征，利用几种测量系统和卫星图像进行了研究。虽然遥感是获取大面积数据的有用工具，但要成功地利用这一技术，还需要克服方法和准确性方面的问题。因此，需要强调的是，在应用遥感技术时，实地观测仍然至关重要。同步测量了太阳光谱中的光谱反射率，并在近地和高空间分辨率卫星上进行了比较。试验地点位于日本、韩国、台湾、俄罗斯和泰国。

Even though vegetation varies largely in spatial and temporal scales, there are signs of rapid degradation in East Asia due to human activities and environmental effects. To monitor environmental characteristics, research was conducted by using several kinds of measuring systems and satellite imagery. Although remote sensing is a useful tool for obtaining data over large areas, there are problems in methodology and accuracy to overcome for the technique to be utilized successfully. Therefore, it is emphasized that in situ observation remains essential when applying remote sensing techniques. Spectral reflectance in the solar spectrum was measured synchronously and compared near ground and a high spatial resolution satellite. Test sites were located in Japan, Korea, Taiwan, Russia and Thailand.