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. 3种NDVI遥感数据产品在大别山区的对比分析[J]. 信阳师范学院学报(自然科学版), 2019, 32(4): 584-589. DOI: 10.3969/j.issn.1003-0972.2019.04.012
引用本文: 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. 3种NDVI遥感数据产品在大别山区的对比分析[J]. 信阳师范学院学报(自然科学版), 2019, 32(4): 584-589. DOI: 10.3969/j.issn.1003-0972.2019.04.012
WU Lili, CHEN Yueqing, CHI Zhifeng, ZHOU Shitian, SUN Chunmeng, SHI Xinyu, HU Jing, LIU Junxiao, ZHANG Yibing. Comparative Analysis of 3 NDVI Remote Sensing Datastes in the Dabie Mountains[J]. Journal of Xinyang Normal University (Natural Science Edition), 2019, 32(4): 584-589. DOI: 10.3969/j.issn.1003-0972.2019.04.012
Citation: WU Lili, CHEN Yueqing, CHI Zhifeng, ZHOU Shitian, SUN Chunmeng, SHI Xinyu, HU Jing, LIU Junxiao, ZHANG Yibing. Comparative Analysis of 3 NDVI Remote Sensing Datastes in the Dabie Mountains[J]. Journal of Xinyang Normal University (Natural Science Edition), 2019, 32(4): 584-589. 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: 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.

     

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