摘要
地下水数值模型中边界侧向补给量的精确性是决定模型可靠性的重要因素,进而也影响地下水数值模拟结果和预报结果的可靠性。为提高银川平原地下水数值模拟的精度,采用水文分析法提取贺兰山东麓子流域面积,由前人不完整统计的雨洪量与子流域面积资料,类比推算贺兰山东麓雨洪水入渗量,并与遥感计算结果进行对比验证,结果表明:基于流域水文分析的计算结果为4 828.3万m^3/a,基于遥感的计算结果为6 208.6万m^3/a,取二者平均值5 518.5万m^3/a作为地下水模型中山前侧向补给量。
The accuracy of lateral groundwater recharge in groundwater numerical model is a key factor to determine the reliability of the model,which can also affect the results of the numerical simulation and the reliability of prediction results. In order to improve the accuracy of numerical simulation of the groundwater in the Yinchuan plain,the basin area of the eastern foot of Helan Mountain was extracted by hydrological analysis method. The flood flow and basin area data were calculated by analogy. The amount of rainwater loss was calculated and compared with by remote sensing. The results show that the result based on hydrological analysis method is 48.283 million m^3/a,based on the remote sensing calculation is 62.086 million m^3/a and takes the average value of the two of 55. 185 million m^3/a as the piedmont lateral recharge of the groundwater flow model in Yinchuan Plain.
出处
《人民黄河》
CAS
北大核心
2018年第1期50-55,共6页
Yellow River
基金
中国地质调查局地质调查项目(1212011220973)
关键词
山前侧向补给量
水文分析法
地下水模拟
银川平原
piedmont lateral runoff recharge
hydrological analysis
groundwater numerical simulation
Yinchuan Plain
