本文選題：山地災(zāi)害 + 垂直氣候特征�。� 參考：《人民長(zhǎng)江》2017年10期

【摘要】：針對(duì)青藏高原東南緣泥石流災(zāi)害活動(dòng)頻繁,但形成區(qū)缺乏較為準(zhǔn)確的降水資料的現(xiàn)實(shí)需求,按照水系的分水嶺將研究區(qū)分為6個(gè)區(qū)域,并利用區(qū)內(nèi)60個(gè)氣象觀測(cè)站點(diǎn)1981~2010年年均降水量、海拔高度、坡向、坡度資料,結(jié)合GIS和統(tǒng)計(jì)分析,建立了各分區(qū)的降水垂直分布關(guān)系式,并以金沙江流域的拉哇溝、大渡河流域的江咀溝對(duì)該統(tǒng)計(jì)模型進(jìn)行了初步驗(yàn)證。結(jié)果顯示:針對(duì)不同的流域,該降水垂直分布關(guān)系式能夠獲取缺氣象觀測(cè)站點(diǎn)的山區(qū)降水?dāng)?shù)據(jù),大體上適用于青藏高原東南緣降水測(cè)算,能為泥石流等山地災(zāi)害形成區(qū)的匯流計(jì)算提供參考。
[Abstract]:In view of the frequent debris flow activities in the southeast margin of the Qinghai-Xizang Plateau, but the actual demand for more accurate precipitation data in the forming area, the study is divided into 6 regions according to the watershed of the water system. Based on the data of average annual precipitation, altitude, direction and slope of 60 meteorological observation stations from 1981 to 2010, combining GIS and statistical analysis, the vertical distribution formula of precipitation in each region is established, and the Lawagou valley of Jinsha River basin is used to analyze the vertical distribution of precipitation. The statistical model is preliminarily verified by the river mouth gully in the Dadu River Basin. The results show that, for different basins, the vertical distribution of precipitation can obtain precipitation data of mountainous areas lacking meteorological observation stations, which is generally suitable for precipitation calculation in the southeastern margin of the Qinghai-Xizang Plateau. It can provide a reference for the flow confluence calculation in the mountain disaster forming area such as debris flow.
【作者單位】： 成都信息工程大學(xué)大氣科學(xué)學(xué)院;中國(guó)科學(xué)院山地災(zāi)害與地表過程重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院水利部成都山地災(zāi)害與環(huán)境研究所;西南石油大學(xué)土木工程與建筑學(xué)院;
【基金】：中國(guó)科學(xué)院科技服務(wù)網(wǎng)絡(luò)計(jì)劃(STS計(jì)劃)項(xiàng)目(KFJ-EW-STS-094);中國(guó)科學(xué)院西部之光重點(diǎn)項(xiàng)目(Y5R2040040) 四川省科技計(jì)劃項(xiàng)目(2015SZ0214)
【分類號(hào)】：P426.6;P642.23
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本文編號(hào)：2089938