| Real-time monitoring and analysis of spring dought in Guanzhong plain in 2013 |
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| DOI：10.7606/j.issn.1000-7601.2013.03.38 |
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| Author Name | Affiliation | | WANG Pengxin | College of lnformation and Electrical Engineering, China Agricultusal University, Beijing 100083, China | | LIN Qiao | College of lnformation and Electrical Engineering, China Agricultusal University, Beijing 100083, China | | ZHANG Shuyu | Shaanxi Provincial Meteorological Bureau, Xi’an, Shaanxi 710014, China | | XIE Yi | College of lnformation and Electrical Engineering, China Agricultusal University, Beijing 100083, China | | WU Gaofeng | College of lnformation and Electrical Engineering, China Agricultusal University, Beijing 100083, China |
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| Abstract: |
| There were serious drought occurrences in early spring of 2013 in the Guanzhong plain, Shaanxi Province, PR China, and the third eategory level(Ⅲ) of drought emergency response was issued by the Provincial Meteorological Bureau on April 1,2013 and was deactivated on April 24, 2013. A remotely sensed drought monitoring approach called vegetation temperature condition index(VTCI)was applied to monitor the drought occurrences using Aqua MODIS data products, MYD09GA and MYD11A1. The results showed that there were extreme
drought occurrences in the first ten days and the middle ten days of March 2013 in the whole plain, and the droughts of the first ten days were more serious. The droughts were released in the last ten days of March 2013, and there were severe droughts in east and west of the plain. The droughts were further released in the first ten days of April 2013, while the droughts were aggravated in the middle ten days of April 2013 in east of the plain. These drought monitoring results were in good agreement with periodieal thematie reports issued by the Shaanxi Provincial Meteorological Bureau, and indicated that the remotely sensed VTCI approach is a real-time drought monitoring approach. |
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