| 高寒区潜在蒸散量的计算方法探讨 |
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| 引用本文： | 王素萍,宋连春,韩永翔.高寒区潜在蒸散量的计算方法探讨[J].干旱区研究,2009,26(1). |
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| 作者姓名： | 王素萍 宋连春 韩永翔 |
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| 作者单位： | 1. 中国气象局兰州干旱气象研究所,甘肃省(中国气象局)干旱气候变化与减灾重点(开放)实验室,甘肃,兰州,730020
2. 中国气象局,北京,100081 |
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| 基金项目： | 科研所启动基金，科技开发基金 |
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| 摘 要： | 用黄河源区的玛多、达日、久治和玛曲4个气象站1971-2005年的气温、风速、日照时间、水汽压等资料,对4种常用的潜在蒸散量计算方法在高寒区的适用性进行了分析,并对Makkink方法进行了改进.结果表明:Makkink方法在全年都有明显的低估现象;Priestley and Taylor法除冬、春季外有高估现象;Hargreaves and samani温度法在玛多站全年均有低估现象,在其他站春、秋、冬季有低估现象;国内Penman修正式计算的潜在蒸散量值与FA0 Penman-Monteifh法较接近,但国内Penman修正式在春、夏季有轻微的高估现象;改进的Makkink方法所需资料简便易得,计算精度高,在高寒区具有很强的实用性.
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| 关 键 词： | 高寒气候区 潜在蒸散 计算方法 适用性 |
Estimation of the Potential Evapotranspiration in Paramos |
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| WANG Su-ping,SONG Lian-chun,HAN Yong-xiang.Estimation of the Potential Evapotranspiration in Paramos[J].Arid Zone Research,2009,26(1). |
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| Authors: | WANG Su-ping SONG Lian-chun HAN Yong-xiang |
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| Institution: | 1.Lanzhou Institute of Arid Meteorology & Open Key Laboratory of Arid Climate Change and Disaster Reduction;China Meteorological Administration;Gansu Province Key Laboratory of Arid Climate Change and Disaster Reduction;Lanzhou 730020;China;2.China Meteorological Administration;Beijing 100081;China |
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| Abstract: | In this study,we compared the suitability of 4 commonly used methods of estimating potential evapotranspiration and their estimation precision based on measured meteorological data,including air temperature,wind speed,sunshine duration and vapor pressure,collected by 4 meteorological stations in the headwaters of the Yellow River from 1971 to 2005.The results of the study were as follows:(1) The ET0 values estimated separately using each of the 4 methods and the FAO Penman-Monteith method were significantly... |
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| Keywords: | paramos climate zone potential evapotranspiration calculation method suitability |
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