variability of runoff 中文意思是什麼
variability of runoff
解釋
徑流變率- variability : n. 易變，變化性；【生物學】變異性。
- of : OF ＝Old French 古法語。
- runoff : 降雨徑流
-
Abstract : digital basinis made from digital elevation model considering spatial variability within a catchment. on the basis of digital basin, the digital approach to describing hydrological processes within a catchment is investigated. digital hydrological model is regarded as a modern physically - based modeling technique that includes a large amount of information. the case study on the shiguanhe catchment in the huaihe river basin, intensified observation field of gewex asian monsoon experiment project, has shown that the digital mode lperforms very well not only in simulating runoff processes at any specific site, but also in simulating spatial distribution and temporal variation of hydrological elements and state variable ( especially soil moisture ), if compared with traditional hydrological models. that provides solid foundation for full use of now available observation in formation and in - depth mining of hydrological data
文摘:考慮流域下墊面空間變異性，基於數字高程模型構建了數字流域，並在此基礎上對描述流域水文物理過程的數字方法進行了探討.文章認為，數字水文模型是一種有物理基礎的包含大容量信息的現代模擬技術.史灌河流域實例研究表明，數字水文模型可以十分方便地輸出水文要素和狀態變量的空間分佈與時間序列，這對充分利用現有觀測信息進行水文信息的深層挖掘創造了條件 -
The paper main contents including : ( 1 ) the paper analyzed spatial variability of hydrology geological parameters ; and studied on the tendency and regulation of annual water table resource in shandianhe river in inner mongolia ; and analyzed the general changing tendency of water table with time ; analyzed and illustrated the conditions of supply, penetration and drainage of ground water. ( 2 ) the paper analyzed the data of rainfall, evaporation, transpiration and runoff, assessed the surface water resources. ( 3 ) the paper used drainage method of ground water and finite element method assessed groundwater resources and forecasted the water table in the future six years
內容包括: （ 1 ）分析了水文地質參數的空間變異性並分析研究了地下水的歷年動態變化趨勢和規律及其補給、徑流和排泄條件; （ 2 ）整理和分析了研究區的降水、蒸發和徑流資料，評價了地表水資源量; （ 3 ）採用總排泄法和有限元法對研究區地下水資源量進行了評價，並對未來6年地下水水位進行了預測。 -
On the platform of digital basin derived from raster dem data, - a grid - based hydrological model and a subcatchment - based hydrological model were used to study the effects of spatial variability on runoff process on such aspects as precipitation, model parameters and soil evaporation
在構建的數字流域平臺基礎上，建立分別基於子流域離散和柵格離散的數字水文模型，從而分析研究降水、模型參數和土壤蒸發的空間不均勻性對模擬水文過程的影響。 -
The parameter in the xin ' anjiang model, imp, was extracted directly from above land use / cover data. another parameter, sm, in each subcachment and in each raster grid was obtained from the relation between sm and the ratio of forest land area to subcatchment area. thus, a semi - distributed hydrological model and a distributed hydrological model were established to analyze the effect of some parameters in xin ' anjiang on runoff process according to the spatial variability of land surface characteristics
將遙感技術獲取的土地利用和地表覆蓋一公里柵格信息與數字高程模型數據進行空間配準，然後通過構建林地面積比與新安江模型參數sm的關系間接確定各子流域及各柵格單元的的sm值，新安江模型參數imp由配準好的土地利用和地表覆蓋信息直接提取，由此建立方案與方案，來分析受下墊面覆蓋的空間不均勻性影響的模型部分參數是如何對模擬水文過程產生影響的。 -
By introducing a parameter into the three sources evaporation module of xin ' anjiang model, the whole layers nonlinearity method and the middle layer nonlinearity method were applied to evaporation computation to study the effect of spatial soil evaporation variability on runoff simulation
模擬結果說明模型參數的空間不均勻性對水文過程模擬的影響是很大的。將新安江蒸發模型引入一個新的參數，採用整層非線性方案和中層採用非線性方案來分析土壤蒸發不均勻性對模擬水文過程的影響。
分享友人