本文關(guān)鍵詞： 滑坡預(yù)報(bào) 水土耦合 CRESLIDE模型 CREST模型 月河　出處：《氣象》2017年09期 　論文類型：期刊論文

【摘要】：降水誘發(fā)型滑坡災(zāi)害涉及水文與土壤失穩(wěn)過程,是個(gè)非常復(fù)雜的預(yù)報(bào)難題。本研究應(yīng)用CRESLIDE(Coupled Routing and Excess Storage and Slope-Infiltration-Distributed Equilibrium)模型,研究基于水土耦合機(jī)制的流域滑坡預(yù)報(bào)。模型輸入格點(diǎn)降水由基于流域逐小時(shí)加密雨量站的反距離權(quán)重法插值獲取;基于GIS、DEM和遙感技術(shù),提取滑坡流域下墊面信息;采用分布式水文模型CREST模擬預(yù)報(bào)出滑坡研究區(qū)域的流域水文過程,作為中間變量驅(qū)動(dòng)滑坡模型SLIDE,實(shí)現(xiàn)降水誘發(fā)型滑坡的預(yù)報(bào)。選擇陜南月河流域2012年7月3—5日降水誘發(fā)型滑坡過程進(jìn)行模擬預(yù)報(bào),驗(yàn)證模型的適用性。結(jié)果表明,基于CRESLIDE模型的流域水土耦合滑坡預(yù)報(bào)模型在滑坡時(shí)空預(yù)報(bào)上表現(xiàn)穩(wěn)定;通過ROC曲線分析CRESLIDE模型取得的特異性(87.8%)和敏感性(52.9%)均較好;本研究基于流域水土耦合機(jī)制研究滑坡機(jī)理預(yù)報(bào),耦合了流域水文過程與土力學(xué)過程,使得流域水文模擬更為合理,在滑坡的預(yù)報(bào)與早期預(yù)警中表現(xiàn)良好,對(duì)同類滑坡預(yù)報(bào)有一定的借鑒意義。
[Abstract]:The precipitation induced landslide is a very complicated problem in predicting hydrology and soil instability. The CRESLIDE(Coupled Routing and Excess Storage and Slope-Infiltration-Distributed equilibrium model is used in this study. Based on the coupling mechanism of soil and water, the model input lattice precipitation is obtained by the inverse distance weight interpolation based on the hourly precipitation station, and the underlying surface information is extracted based on GIS Dem and remote sensing technology. A distributed hydrological model (CREST) is used to simulate and forecast the hydrological process in the landslide study area. As an intermediate variable driven landslide model, SLIDE is used to predict the precipitation induced landslide. The process of precipitation induced landslide is simulated and forecasted from July 2012 to July 2012 in the Yuehe River Basin of southern Shaanxi, and the applicability of the model is verified. The coupled landslide prediction model based on CRESLIDE model is stable in time and space prediction of landslide, and the specificity and sensitivity of CRESLIDE model obtained by ROC curve analysis are good. Based on the coupling mechanism of soil and water, landslide mechanism prediction is studied in this paper. The hydrological process and soil mechanics process are coupled, which makes basin hydrological simulation more reasonable and performs well in landslide prediction and early warning. It can be used for reference for the similar landslide prediction.
【作者單位】： 國家氣象中心;河海大學(xué)水文水資源與水利工程科學(xué)國家重點(diǎn)實(shí)驗(yàn)室;河海大學(xué)水文水資源學(xué)院;陜西省氣候中心;中國地質(zhì)環(huán)境監(jiān)測(cè)院(國土資源部地質(zhì)災(zāi)害應(yīng)急技術(shù)指導(dǎo)中心);
【基金】：國家自然科學(xué)基金項(xiàng)目(51509043,C1775111) 國家重點(diǎn)研發(fā)計(jì)劃(2016YFC0402702、2016YFC0402701) 中國氣象局首批青年英才計(jì)劃(2014-2017);中國氣象局氣象預(yù)報(bào)業(yè)務(wù)關(guān)鍵技術(shù)發(fā)展專項(xiàng)[YBGJXM(2017)06] 中央高校基本科研業(yè)務(wù)費(fèi)項(xiàng)目(2015828514) 水文水資源與水利工程科學(xué)國家重點(diǎn)實(shí)驗(yàn)室基金(20165042212) 國家氣象中心水文氣象預(yù)報(bào)團(tuán)隊(duì)項(xiàng)目共同資助
【分類號(hào)】：P642.22

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