Environmental monitoring in East Asia

东亚环境监测

基本信息

批准号：
11691147
负责人：
MURAMOTO Ken-ichiro
金额：
$ 4.67万
依托单位：
Kanazawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11691147/
关键词：
environmental monitoring East Asia vegetation remote sensing ground truth spectra of trees effect of distance

项目摘要

Forests cover large areas of the land surface. To consistently and repeatedly monitor forests over these large areas, it is desirable to use remote sensing data and automated analyzing techniques. While satellite imagery contains useful data about forest conditions, it is emphasized that field work remains essential when applying remote sensing techniques.International collaboration has been designed to promote cooperation in vegetation research with a particular focus on the remote sensing and field research.In this research, spectral reflectance in the solar spectrum was measured synchronously and compared using different platforms: near ground, aerial and satellite. Spectral reflectance of ground vegetation was measured between 350 and 1050 nm using a portable spectrometer. Test sites for remote sensing of trees and grass were located in China and in Japan. Data from Landsat, NOAA and a spectrometer were used in this project.We measured two different types of vegetation in Inner-Mongolia: grass and trees. Using a portable spectrometer, a digital video camera, and an infrared CCD camera, reflectance of the major plant species was measured from different distances (0.1 m, 1 m, 100 m, and 300 m).We also measured the spectra of trees in Japan at three different distances and scales: 1) individual leaves, 2) part of a tree seen from a distance of 40 m, 3) mixture of several different trees seen from a helicopter, and investigated what affects the data during the scaling up of the measurements.

森林覆盖了土地表面的大面积。要始终如一地反复监视这些大区域的森林，希望使用遥感数据和自动分析技术。尽管卫星图像包含有关森林状况的有用数据，但强调在应用遥感技术时，现场工作仍然至关重要。国际合作旨在促进植被研究中的合作，特别关注遥感和现场研究。在这项研究中，在Solar Spectrum中的频谱反射是同步测量和比较差异的，近距离的平台和Satellite：sathellite和Satellite。使用便携式光谱仪在350至1050 nm之间测量地面植被的光谱反射率。遥感树木和草的测试地点位于中国和日本。该项目中使用了Landsat，NOAA和光谱仪的数据。我们在内蒙古中测量了两种不同类型的植被：草和树木。使用便携式光谱仪，数码摄像机和红外CCD摄像头，从不同距离（0.1 m，1 m，1 m，100 m和300 m）中测量了主要植物物种的反射率。我们还测量了日本在三个不同的距离和尺度上在日本的树木光谱：1）单个叶子的一部分，2）在40 m的距离中看到了几个不同的距离，该距离的一部分是在40 m，3）的范围内被发现的，3）是在40 m，3的距离中所见的。扩展测量值。