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| 近40年那曲地区气候特征分析 | |
| 引用本文： | 毛飞,卢志光,张佳华,郑凌云.近40年那曲地区气候特征分析[J].高原气象,2007,26(4):708-715. |
| 作者姓名： | 毛飞 卢志光 张佳华 郑凌云 |
| 作者单位： | 1. 中国气象局,成都高原气象研究所,四川,成都,610071;中国气象局,中国气象科学研究院,北京,100081 2. 中国农业大学,北京,100094 3. 中国气象局,中国气象科学研究院,北京,100081 |
| 基金项目： | 中国气象局成都高原气象研究所项目(LPM2006019)，科技部社会公益项目(2003DJB4J144)共同资助 |
| 摘 要： | 利用藏北那曲地区6个气象站1961—2000年逐日气象资料,用联合国粮农组织UNFAO(1998年)的Penman—Menteith模式,计算了潜在蒸散量,采用常规统计方法和墨西哥帽小波变换分析了那曲地区1961—2000年气温、降水和潜在蒸散的地理分布以及年内、年际变化规律。研究表明:近40年那曲地区春季、夏季、秋季、冬季、生长季(5~9月)和年的平均气温均呈增加趋势;降水量除夏季外也均呈增加趋势;潜在蒸散量秋季和冬季呈减少趋势,其它时段呈增加趋势,而在1971—2000年,6个不同时段的潜在蒸散量均呈下降趋势。那曲地区近40年来的气候变化比较小,但总体在向暖湿方向发展,2000年以后继续暖湿化的可能性比较大,这有利于当地的农牧业生产和生态环境的改善。 |
| 关 键 词： | 那曲地区 气候特征 蒸散量 降水 |
| 文章编号： | 1000-0534（2007）04-0708-08 |
| 修稿时间： | 2006-03-01 |
Analysis on Climate Characteristics in Naqu in Recent 40 Years |
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| MAO Fei,LU Zhi-guang,ZHANG Jia-hua,ZHENG Ling-yun.Analysis on Climate Characteristics in Naqu in Recent 40 Years[J].Plateau Meteorology,2007,26(4):708-715. | |
| Authors: | MAO Fei LU Zhi-guang ZHANG Jia-hua ZHENG Ling-yun |
| Institution: | 1. Chengdu Institute of Plateau Meteorolgy, CMA, Chengdu 610071, China; 2. Chinese Academy of Meteorological Sciences, CMA, Beijing 100081; 3. China Agricultural University, Beijing 100094, China |
| Abstract: | Using the daily meteorological data of 6 stations in Naqu from 1961 to 2000,the potential evapotranspiration was estimated with the UNFAO Penman-Monteith model;the distribution and the annual and interannual variations of temperature,precipitation,potential evapotranspiration in recent 40 years were analyzed based on the general statistic methods and Mexican Hat wavelet.The main results show that the mean temperature in spring,summer,autumn,winter,growing season(from May to September) and a year all increased in recent 40 years.The precipitation in summer increased and that in other 5 periods all decreased.The potential evapotranspiration in autumn,and winter decreased and that in other 4 periods all increased in recent 40 years.The potential evapotranspiration in 6 periods all decreased in recent 30 years.The climate change in Naqu is not obvious,but it generally changed towards warm and wet from 1961 to 2000,which would maintain change towards warm and wet after 2000.The climate changes are favoured for agriculture and grazing and improving entironment. |
| Keywords: | Naqu region Climate characteristic Evapotranspiration Precipitation |
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