3种NDVI遥感数据产品在大别山区的对比分析

武黎黎; 陈月庆; 蚩志锋; 周诗恬; 孙春猛; 石新雨; 胡晶; 刘俊晓; 张逸冰

doi:10.3969/j.issn.1003-0972.2019.04.012

3种NDVI遥感数据产品在大别山区的对比分析

Comparative Analysis of 3 NDVI Remote Sensing Datastes in the Dabie Mountains

摘要

摘要: 选取GIMMS、MODIS、SPOT/VEGETATION 3种NDVI(归一化植被指数)遥感数据产品，分析它们在大别山区域的空间分布和时序变化.结果表明：(1)在空间分布上，3种NDVI数据的格局大致相同，MODIS NDVI和SPOT/VEGETATION NDVI的空间分布吻合度更高；MODIS传感器的波段宽度窄、空间分辨率高、变化范围大、分布分散.(2)在时序变化上，3种NDVI数据的季节变化步调基本一致，幅度相当，MODIS NDVI和SPOT/VEGETATION NDVI数据更能清晰地反映NDVI对降水响应约有1个月的滞后这一现象；GIMMS NDVI能清晰准确地反映地面植被覆盖的变化情况; SPOT/VEGETATION NDVI的动态范围比GIMMS NDVI和MODIS NDVI的动态范围大.

Abstract: The NDVI (normalized difference vegetation index)datasts of GIMMS, MODIS and SPOT/VEGETATION were selected as data sources to analyze their spatial distribution and timing changes in the Dabie Mountains. The results showed that: (1) these data had generally similar distribution patterns in space. MODIS and SPOT/VEGETATION NDVI matched well.MODIS had narrow band width, high spatial resolution and large variation range; (2)three types of NDVI changed seasonally similar to the same amplitude in terms of time series variation.MODIS NDVI and SPOT/VEGETATION NDVI clearly reflected the lag of the NDVI response to precipitation for about 1 month. GIMMS NDVI clearly and accurately reflected the changes of ground vegetation cover. The dynamic range of SPOT/VEGETATION was larger than that of GIMMS NDVI and MODIS NDVI.

HTML全文

参考文献(20)

施引文献

资源附件(0)