|
|||||
|
|
| 植被冠层热点的季相和日相变化 | |
| 引用本文： | 苏理宏,李小文,A.Stralher,E.Tsvetsinskay,王锦地.植被冠层热点的季相和日相变化[J].遥感学报,2002,6(4):241-245. |
| 作者姓名： | 苏理宏 李小文 A.Stralher E.Tsvetsinskay 王锦地 |
| 作者单位： | 1. 北京师范大学,遥感与GIS研究中心,北京,100875 2. 北京师范大学,遥感与GIS研究中心,北京,100875;Center for Remote Sensing and Dept.of Geography,Boston University,Boston,21215,MA,USA 3. Center for Remote Sensing and Dept.of Geography,Boston University,Boston,21215,MA,USA |
| 基金项目： | 973项目G2 0 0 0 0 779，自然科学基金 499710 5 9 |
| 摘 要： | 随着热点卫星Triana的即将发射，地表热点季相和日相变化的研究变得日益重要。以几种植被冠层为例，采用计算机模拟的方法考查冠层热点的季相和日相变化。 |
| 关 键 词： | 植被冠层 热点 遥感模型 计算机模拟 可视化 季相变化 日相变化 |
| 文章编号： | 1007-4619(2002)04-0241-05 |
| 收稿时间： | 3001/5/15 0:00:00 |
| 修稿时间： | 2001年5月15日 |
Determination of the Vegetation Hotspot Diurnal and Seasonal Change by Real Scene Models |
|
| SU Li-hong,LI Xiao-wen,ALAN Stralher,ELENA Tsvetsinskay and WANG Jin-di.Determination of the Vegetation Hotspot Diurnal and Seasonal Change by Real Scene Models[J].Journal of Remote Sensing,2002,6(4):241-245. | |
| Authors: | SU Li-hong LI Xiao-wen ALAN Stralher ELENA Tsvetsinskay and WANG Jin-di |
| Institution: | Research Center for Remote Sensing and Dept.of Geography,Beijing Normal University,Beijing 100875,China;Research Center for Remote Sensing and Dept.of Geography,Beijing Normal University,Beijing 100875,China;Center for Remote Sensing and Dept.of Geography,Bwton University.Boston,21215,MA,USA;Center for Remote Sensing and Dept.of Geography,Bwton University.Boston,21215,MA,USA;Center for Remote Sensing and Dept.of Geography,Bwton University.Boston,21215,MA,USA;Research Center for Remote Sensing and Dept.of Geography,Beijing Normal University,Beijing 100875,China |
| Abstract: | The vegetation hotspot dependence on its stucture at various times in one day and various growth periods is investigated in this paper. We simulate the interaction of light and vegetation based on three dimensional plant canopies.Our approach consists of four processes. Firstly,the biophysical parameters,such as corn plant height,leaf base height,size of leaf,and shape of leaf,are measured on field,and the statistics of the parameters is obtained based on the measurement. Secondly,the three dimensional structure of canopy is built by the CSM (Computer Scene Model)according to the statistics under a pixel configuration,such as planting by row or by random. Thirdly,the zenith and azimuth of sun are calculated for the simulated site on earth. Fourthly,hotspots and bi directional reflectance distribution functions are calculated by the LIM (Light Interception Model)under various sun and viewing geometric conditions. Finally we evaluate diurnal consecutive hotspot and seasonal consecutive hotspot. The characteristic and scientific objectives of hotspot satellite Triana also are introduced. The simulated result will improve our understanding about the Triana data,and help us to use the dada effectively. |
| Keywords: | hotspot remote sensing physical modeling computer simulation vegetation visualization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《遥感学报》浏览原始摘要信息 | |
| 点击此处可从《遥感学报》下载免费的PDF全文 | |