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娘子关泉水是一个岩溶裂隙泉水,位于山西省娘子关附近。它的多年平均流量12.6立方米/秒,泉域面积3,560平方公里。娘子关泉水是中国最大的泉水之一。 泉水的数学模型可以写作: Q_t=sum from i=k to n P_(t-i)W_(i+a) 式中,Q代表泉水流量(立方米/秒);P代表降水量(毫米);W代表权系数;a代表流量误差(立方米/秒),t代表时间(年)。 利用泉水流量和降水量的观测资料,运用电子计算机,我们得到权系数:W_0=0.00364;W_1=0.00781;W_2=0.00646;W_3=0.00476;W_4=0.00522;W_5=0.00524;W_6=0.00423;W_7=0.00238;a=-0.002立方米/秒。 考虑到娘子关泉水流量与7年内的降水量关系最密切,参考区域性水文地质参数,我们计算地下水流速为10公里/年,地下水库调节库容为14立方米亿,含水层的给水度为0.0023,含水层的渗透系数为10.5米/昼夜。 另外,我们可以利用下式予报娘子关泉水流量: Q_t=0.00364P_t+0.00781P_(t-1)+0.00646P_(t-2)+0.00476P_(t-3)+0.00522P_(t-4)+0.00524P_(t-5) +0.00423P_(t-6)+0.00238P_(t-7)-0.002
Niangziguan spring water is a karst rift spring, located in the vicinity of the Niangziguan in Shanxi Province. Its average annual flow of 12.6 cubic meters / second, the spring area of 3,560 square kilometers. Niangzi Spring is one of the largest springs in China. Spring water mathematical model can be written as: Q_t = sum from i = k to n P_ (ti) W_ (i + a) Where Q represents the spring flow (cubic meters / second); P represents precipitation (mm); W represents Weight coefficient; a represents flow error (cubic meters / second), t represents time (years). Using the observation data of spring flow and precipitation, using the computer, we get the weight coefficient: W_0 = 0.00364; W_1 = 0.00781; W_2 = 0.00646; W_3 = 0.00476; W_4 = 0.00522; W_5 = 0.00524; W_6 = 0.00423; W_7 = 0.00238 ; a = -0.002 cubic meters / second. Taking into account that the water flow in Niangziguan Spring is most closely related to the precipitation in 7 years, with reference to regional hydrogeological parameters, we calculate the groundwater flow rate of 10 km / year, the underground reservoir regulation capacity of 14 m3, the aquifer water supply rate of 0.0023 , Aquifer permeability coefficient of 10.5 m / day and night. In addition, we can use the following formula to report the flow of water to the damn stream: Q_t = 0.00364P_t + 0.00781P_ (t-1) + 0.00646P_ (t-2) + 0.00476P_ (t_3) + 0.00522P_ (t_4) + 0.00524P_ (t-5) + 0.00423P_ (t-6) + 0.00238P_ (t-7) -0.002