中国地理科学(英文版) ›› 2008, Vol. 18 ›› Issue (3): 242-248.doi: 10.1007/s11769-008-0242-y

• 论文 • 上一篇    下一篇

Comparison of Some Vegetation Indices in Seasonal Information

HAO Chengyuan1, WU Shaohong2, XU Chuanyang1   

  1. 1. College of Surveying & Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
    2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • 收稿日期:2008-02-05 修回日期:2007-05-28 出版日期:2008-09-20 发布日期:2011-12-14
  • 通讯作者: HAO Chengyuan. E-mail: haocy@hpu.edu.cn E-mail:haocy@hpu.edu.cn
  • 基金资助:

    Under the auspices of National Basic Research Program of China (No. 2003CB415101);PhD Foundation of Henan Polytechnic University (No. B2006-11)

Comparison of Some Vegetation Indices in Seasonal Information

HAO Chengyuan1, WU Shaohong2, XU Chuanyang1   

  1. 1. College of Surveying & Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
    2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2008-02-05 Revised:2007-05-28 Online:2008-09-20 Published:2011-12-14

摘要:

With the development of vegetation indices, the reflection capability of vegetation indices to the state of vegetation has been improved in various degrees. Especially, the vegetation index of Terra/MODIS-EVI is believed to have the highest sensitivity to the seasonality of vegetation. This study compares the reflection susceptibility of three vegetation indices (NOAA/AVHRR-NDVI, Terra/MODIS-NDVI and Terra/MODIS-EVI) to the seasonal variations of vegetation in the mid-south of Yunnan Province of China. It has been found that Terra/MODIS-EVI does best in the elimination of external disturbance. Firstly, it obviously improves the linear relationship with vegetation cover degree, especially in the high vegetation coverage area. Secondly, it avoids the emergence of vegetation index saturation. Thirdly, it reduces the environmental influence including both effects of atmosphere and soil. So it is believed that the Terra/MODIS-EVI can offer excellent tool for quantitative research of remote sensing, and has realized to be oriented by data with high quality.

关键词: NOAA/AVHRR, Terra/MODIS, NDVI, EVI, vegetation seasonal information

Abstract:

With the development of vegetation indices, the reflection capability of vegetation indices to the state of vegetation has been improved in various degrees. Especially, the vegetation index of Terra/MODIS-EVI is believed to have the highest sensitivity to the seasonality of vegetation. This study compares the reflection susceptibility of three vegetation indices (NOAA/AVHRR-NDVI, Terra/MODIS-NDVI and Terra/MODIS-EVI) to the seasonal variations of vegetation in the mid-south of Yunnan Province of China. It has been found that Terra/MODIS-EVI does best in the elimination of external disturbance. Firstly, it obviously improves the linear relationship with vegetation cover degree, especially in the high vegetation coverage area. Secondly, it avoids the emergence of vegetation index saturation. Thirdly, it reduces the environmental influence including both effects of atmosphere and soil. So it is believed that the Terra/MODIS-EVI can offer excellent tool for quantitative research of remote sensing, and has realized to be oriented by data with high quality.

Key words: NOAA/AVHRR, Terra/MODIS, NDVI, EVI, vegetation seasonal information