本文關(guān)鍵詞： 凍融期 氣溫 線(xiàn)性模型 改進(jìn)型水量均衡模型 優(yōu)化求解　出處：《灌溉排水學(xué)報(bào)》2017年06期 　論文類(lèi)型：期刊論文

【摘要】：為預(yù)測(cè)河套灌區(qū)凍融區(qū)全年地下水位變化過(guò)程,采用統(tǒng)計(jì)學(xué)方法,研究了凍融期地下水位與地表氣溫間的關(guān)系,建立了二者間的線(xiàn)性模型,結(jié)合非凍融期水量均衡模型,建立了改進(jìn)型水量均衡模型,通過(guò)優(yōu)化求解方法確定模型參數(shù)。結(jié)果表明,模型計(jì)算埋深與實(shí)測(cè)埋深擬合效果較好,提出的改進(jìn)型水量均衡模型可較好地預(yù)測(cè)凍融區(qū)全年地下水位變化過(guò)程,解決了凍融期間地下水模擬難題,方法簡(jiǎn)單精確,具有很好的實(shí)用性。
[Abstract]:In order to predict the annual groundwater level variation process in Hetao irrigation area, the relationship between groundwater level and surface air temperature during freezing and thawing period was studied by using statistical method, and a linear model between them was established, combining with the water balance model in non-freezing and thawing period, the relationship between groundwater level and surface air temperature in freeze-thaw period was studied. An improved water balance model is established, and the parameters of the model are determined by the optimization method. The results show that the model can fit the buried depth well with the measured one. The improved water balance model can well predict the annual groundwater level change process in freeze-thaw area and solve the problem of groundwater simulation during freezing and thawing. The method is simple and accurate and has good practicability.
【作者單位】： 武漢大學(xué)水資源與水電工程科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;內(nèi)蒙古水利科學(xué)研究院;
【基金】：內(nèi)蒙古自治區(qū)水利科技重點(diǎn)項(xiàng)目([2014]117-2)
【分類(lèi)號(hào)】：S152.7

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