| CLIGEN天气发生器在长江上游地区的适用性评价 |
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| 引用本文： | 胡云华,贺秀斌,郭丰.CLIGEN天气发生器在长江上游地区的适用性评价[J].中国水土保持科学,2013(6):58-65. |
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| 作者姓名： | 胡云华 贺秀斌 郭丰 |
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| 作者单位： | [1]中国科学院水利部成都山地灾害与环境研究所,成都610041 [2]中国科学院大学,北京100049 |
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| 基金项目： | 项目名称：国家自然科学基金“三峡消落带干湿交替条件下土壤微结构变化特征”（41171222）;中国科学院西部行动计划项目“三峡库区水土流失与面源污染控制试验示范”（KZCX2-XB3-09）;国家科技支撑计划课题“三峡库区低产坡地改造与面源污染减控技术示范”（2011BAD31B03） |
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| 摘 要： | CLIGEN天气发生器是WEPP土壤侵蚀模型的组成模块之一,用于模型预测预报以及天气数据缺测时生成模拟天气数据;但是CLIGEN天气发生器是基于美国的天气条件研发的,在其他地区模拟的精度具有不确定性.以长江上游沱沱河站、马尔康站、丽江站、都江堰站和沙坪坝站5个典型国家气象站40年的日观测数据为基础,分析评价CLIGEN天气发生器在该地区模拟的日和月天气数据的精度.结果表明：CLIGEN天气发生器天气参数的输入对于模拟结果具有较大的影响;模拟结果在长江上游5个不同地貌区气象站的精度基本相当;模拟的日天气数据误差较大,模拟的月天气数据效果好于日天气数据;模拟的各月最高气温和最低气温平均值较实际值偏低,部分参数模拟值的绝对误差和相对误差存在一定的月际差异.
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| 关 键 词： | WEPP 天气发生器 CLIGEN 长江上游 |
An applicability assessment of the weather generator CLIGEN used in the upper Yangtze River |
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| Hu Yunhua,He Xiubin,Guo Feng.An applicability assessment of the weather generator CLIGEN used in the upper Yangtze River[J].Science of Soil and Water Conservation,2013(6):58-65. |
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| Authors: | Hu Yunhua He Xiubin Guo Feng |
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| Institution: | 1.Institute of Mountain Hazards ＆ Environment, Chinese Academy of Sciences, 610041, Chengdu, China;University of Chinese Academy of Sciences, 100049, Beijing, China;) |
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| Abstract: | The CLIGEN weather generator is a part of the Water Erosion Prediction Project （WEPP） model.It is applied to forecast weather condition and fill the missing weather data.However,the CLIGEN was specially developed for working under the weather conditions of the United States,and the accuracy cannot be ensured when used in other places.We analyzed and assessed the precision of the daily and monthly weather data based on the comparison between the data simulated by CLIGEN and the daily observation data according to five national meteorological stations （Tuotuohe,Maerkang,Lijiang,Dujiangyan and Shapingba） in the upper Yangtze River.The results indicated that the input weather parameters in CLIGEN can significantly affect the simulation results.The data generated by CLIGEN are generally in consistence with those from the five stations in the upper Yangtze River.The daily data simulated by CLIGEN have marked error while the monthly data are more accurate than daily data.The simulated monthly temperature is lower than the true values.The absolute and relative errors of parts of simulated data vary among different months. |
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| Keywords: | WEPP weather generator CLIGEN upper Yangtze River |
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