| 冻结期与融解期潜水蒸发系数模拟研究 |
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| 引用本文： | 童菊秀,杨金忠,岳卫峰,张新林.冻结期与融解期潜水蒸发系数模拟研究[J].灌溉排水学报,2007,26(2):21-24,40. |
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| 作者姓名： | 童菊秀 杨金忠 岳卫峰 张新林 |
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| 作者单位： | 1. 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072
2. 内蒙古河套灌区管理总局,内蒙古,临河,015000 |
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| 摘 要： | 根据河套灌区的长期观测资料,确定非冻融期参数后,由稍作修改的水量均衡方程及优化求解方法计算地下水埋深,对冻融期潜水蒸发系数公式逐步进行分析改善,最后在冻结期和融解期采用增加常数项的指数形式的潜水蒸发计算公式,模拟计算的地下水埋深与实际观测结果拟合最好。根据模拟结果,冻融期的潜水蒸发系数仅用地下水埋深来表示,其它影响因素反映在参数中,模型简单,方便实用。
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| 关 键 词： | 冻结期 融解期 水量均衡 潜水蒸发系数 优化求解方法 |
| 文章编号： | 1000-646X（2007）02-0021-04 |
| 修稿时间： | 2006-06-26 |
Simulative Study on Groundwater Evaporation Coefficient in Freezing and Thawing Period |
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| TONG Ju-xiu,YANG Jin-zhong,YUE Wei-feng,ZHANG Xin-lin.Simulative Study on Groundwater Evaporation Coefficient in Freezing and Thawing Period[J].Journal of Irrigation and Drainage,2007,26(2):21-24,40. |
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| Authors: | TONG Ju-xiu YANG Jin-zhong YUE Wei-feng ZHANG Xin-lin |
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| Institution: | 1. The State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China~ 2. Central Management Department of Hetao Irrigation District in Inner Mongolia,Inner Mongolia, Linhe 015000, China |
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| Abstract: | With collected data of the irrigation district in Inner Mogolia,groundwater depth is calculated through slightly amended water balance equation and optimization method after the parameters in the non-freezing-thawing period is ascertained.Groundwater evaporation coefficient in the freezing and thawing period is analyzed and improved gradually.It is shown that the calculated groundwater depth is much more dependable with the exponential type formula in the freezing and thawing period.According to the determined model,groundwater evaporation coefficient in the freezing and thawing period is only expressed by groundwater depth,and the other influencing factors are reflected in the parameters.The model is simple and convenient for the practical applications. |
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| Keywords: | freezing period thawing period water balance groundwater evaporation coefficient optimization method |
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