| 王鹏新,林巧,张树誉,解毅,吴高峰.2013年关中地区春旱的实时监测与剖析[J].干旱地区农业研究,2013,31(3):234~236 |
| 2013年关中地区春旱的实时监测与剖析 |
| 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 |
| 中文关键词: 关中地区 实时监测 |
| 英文关键词: |
| 基金项目:“十二五”国家科技支撑计划（2012BAH29B03）;国家自然科学基金项目（41071235，40871159）；高等学校博士学科点专项科研基金(20100008110031) |
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| 中文摘要: |
| 陕西省关中地区春旱和伏旱频发,素有“十年九旱”之说。据气象部门报道,2012年年末至2013年年初,陕西省遭遇了自1961年以来最严重的一次气候干旱,严重影响了关中地区冬小麦的生长。为了进一步论述遥感干旱监测的实时性和宏观性,本文基于Aqua MODIS卫星遥感数据,采用条件植被温度指数(VTCI)干旱监测方法对关中地区2013年3月以来的干旱程度进行了监测并进行剖析。 |
| 英文摘要: |
| 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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