地理学报 ›› 1985, Vol. 40 ›› Issue (4): 333-346.doi: 10.11821/xb198504004

• 论文 • 上一篇    下一篇

利用NOAA—CCT估算内蒙古草场产草量的原理和方法

徐希孺1, 金丽芳1, 赁常恭2, 周嗣松2, 张猛3   

  1. 1. 北京大学遥感应用研究所;
    2. 国家气象局卫星气象中心;
    3. 锡林郭勒盟科技处
  • 出版日期:1985-10-15 发布日期:1985-10-15
  • 基金资助:
    内蒙古自治区“遥感在草场资源勘察中的应用”项目资助

THE PRINCIPLE AND METHOD FOR MEASUREMENT OF GRASS OUTPUT OF INNER-MONGOLIAN GRASS LAND USING NOAA-CCT

Xiru Xu1, Lifang Jin1, Lin Changgong2, Zhou Sisong2, Zhang Meng3   

  1. 1. The Institute of remote sensing application of Peking University;
    2. The center of satellite meteorology of State Bureau of meteorology;
    3. The sector of science and technology of Xilin Gol Meng
  • Online:1985-10-15 Published:1985-10-15

摘要: 能否利用卫星信息获知草场产草量是定量遥感中的一个重要问题,探索NOAA系列卫星在定量监测中的应用潜力具有重要的现实意义。

关键词: NOAA, 产草量, 路径辐射, 三S, 大气效应, 原理和方法, 绿度, 内蒙古, 内陆湖泊, 植被定量遥感

Abstract: It is very important to know grass output of this year for mordernizing manege-nient of grass land. Satellite data is an ideal tool for solving this problem. Because the circle period of Landsat covering is about 14-18 days, it’s difficult to get the whole Nei Monggol Zizhiqu grass land Landsat Image cover with the proper time phase, but the NOAA series satellite have much more chance to offer scan of earth surface, four times per day, and the instruments AVHB-K aboard on NOAA has two similar spectrum bands with Landsat MSS(AVHER channel I is similar to MSS5 AVHER channel 2 is similar to MSS7). So it is reasonable 1o try using NO AA-CCT to know grass output of Nei Monggol Zizhiqu grass land.Bassed on linear mixture pixel theory and one layer flat plane model of grass field we pointed out the greenness G, namely The ratio of spectrum reflectance of AVHRR channel 2 to channel I G = ρ2/ρ1, has the best sensitivity. We gave out the linear statistics relationship shown on figure 2 between the greenness and grass output (wet weight) through fields experiments in Nei Monggol Zizhiqu Xilin Gol Meng.