| 陈学君,姜梦晶,韩涛.河西走廊地区五个典型站干旱指数对比和气候分析[J].干旱地区农业研究,2012,30(5):216~222 |
| 河西走廊地区五个典型站干旱指数对比和气候分析 |
| Drought index contrast and climate analysis of five typical stations in Hexi Corridor region |
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| DOI：10.7606/j.issn.1000-7601.2012.05.40 |
| 中文关键词: 河西地区 降水距平百分率 相对湿润指数 帕默尔干旱指数 |
| 英文关键词:Hexi region the Precipitation anomaly percentage Relative humidity index The Palmer Drought Severity Index |
| 基金项目:科技部专项基金项目“气象科学数据共享中心”专题（2007DKA31700-06-16）；科技部农业科技成果转化资金项目“西北区域农业干旱监测预警技术推广应用”（2011GB24160005）；甘肃省气象局科研项目“基于多源卫星资料的甘肃省雪盖及雪深监测方法研究”（2011-02） |
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| 中文摘要: |
| 利用1953—2010年河西走廊地区酒泉、高台、张掖、山丹、武威5个气象站点的月平均气温和降水资料计算年、季降水距平百分率、相对湿润
指数和帕默尔干旱指数，通过三种干旱指标的对比，分析河西走廊地区典型站点的气候变化情况。发现近58年来河西走廊地区总体的气候变化存在以“气温升高，降水略增”为主要特点的变化趋势，气候演变存在着季节性和地域性差异，且趋势在冬季表现得更为明显。地区间酒泉和高台的旱情相对严重，张掖、山丹和武威旱情较轻。各季节中以秋季旱情相对明显，不利于农业秋季收获。 |
| 英文摘要: |
| Using the monthly mean temperature and average precipitation of Jiuquan station, Gaotai station, Zhangye station, Shandan station, and Wuwei station in Hexi Corridor region, the Precipitation anomaly percentage, Relative humidity index and the Palmer Drought Severity Index were calculated respectively. Based on comparison of these 3 drought indicators, the climate change of Hexi Corridor region was analyzed and it was found that in the recent 58 years the features of the climate in Hexi Corridor region is “temperatures higher with a slight increase of precipitation”, and the climate changes had seasonal and regional differences, the difference was obvious especially in winter. The areas of Jiuquan and Gaotai had a relative serious drought. The areas of Zhangye, Shandan and Wuwei had a relative light drought. Autumn had a relative serious drought under the 4 seasons, which was not good for the agricultural harvest. |
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