[1]JIANG Lin,FENG Wen-lan,LIU Zhi-hong,et al.Tempeture Vegetation Drought Index(TVDI) Retrieve and Comparison between FY-3A/MERSI and MODIS[J].Research of Soil and Water Conservation,2014,21(03):231-234,241.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 03
Page number:
231-234,241
Column:
Public date:
2014-06-28
- Title:
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Tempeture Vegetation Drought Index(TVDI) Retrieve and Comparison between FY-3A/MERSI and MODIS
- Author(s):
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JIANG Lin1, FENG Wen-lan1, LIU Zhi-hong1, LI Gang1, GUO Bing2
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1. Chengdu University of Information Technology, Chengdu 610225, China;
2. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China
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- Keywords:
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FY-3A/MERSI; MODIS; Tempeture Vegetation Drought Index(TVDI); Panxi region
- CLC:
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TP79
- DOI:
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- Abstract:
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In order to present the difference and comparability between Tempeture Vegetation Drought Index (TVDI) retrieved by FY-3A/MERSI and MODIS in Panxi region, TVDI abstracted from MERSI and MODIS are calculated and compared. The following conclusions are be drawn: (1) the fitting coefficient of the dry-wet edge of MERSI is much higher; (2) the difference of MODIS-TVDI and MERSI-TVDI is from -0.12 to 0.23 and the mean of the difference is 0.11, the MODIS-TVDI is slightly higher than MERSI-TVDI; (3) each inversion result of various kinds of ground objects showed a better linear consistency, the maximum R2 was forest land, which reached to 0.944; (4) MODIS-TVDI and MERSI-TVDI are significantly negatively correlated with the rainfall of the current month and the R2 were -0.83, -0.91, respectively.The drought monitoring results are credible.