| Astudy on routine operation remote sensing drought monitoring model using MODIS data |
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| DOI：10.7606/j.issn.1000-7601.2006.03.01 |
| Key Words: MODIS Shaanxi Province drought monitoring |
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| Abstract: |
| MODIS has advantages in band set and explore precision.That how the tradition drought monitoring model using AVHRR data can be changed to using MODIS data is an important problem in drought monitoring field.Based on the work of routine operation remote sensing drought monitoring model using NOAA/AVHRR data in recent years,the regional drought monitoring model using MODIS data and the work flow to process the remote sensing data were established.Landform,climate and vegetation coverage of Shaanxi province were also considered in this model.Using the established model and work flow,the severe spring drought in Shaanxi province was successfully monitored in 2005.The results show that: using MODIS data,the thermal inertia model and vegetation supply water index(VSWI) model were feasible for monitoring region drought.The modified VSWI model can improve the precision of drought area estimation and visual effects of images. |
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