unit hydrograph 中文意思是什麼

unit hydrograph 解釋
單位過程線
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  • hydrograph : n. 1. 自記水位計，流量速度計算儀。2. 水文圖，水文曲線。
  1. Study of estimating instantaneous unit hydrograph applying genetic algorithm

    遺傳演算法在估計瞬時單位線參數中的應用
  2. Unit hydrograph method

    單位歷線法
  3. Forest ecosystem ; hydrological system ; global change ; guandaushi watershed ; instantaneous unit hydrograph

    森林生態系、水文系統、全球變遷、關刀溪集水區、瞬時單位歷線
  4. Through examination of the recession limbs of the observed hydrographs, during periods with no rain and thus no surface runoff, one can determine the value of. for this catchment, a value of 0. 8 is obtained. the simulated subsurface runoff at each grid is routed to the outlets through a unit - hydrograph method for overland flow and the linear saint - venant equation for channel flow to get the discharge at xixian station

    對所研究的流域而言，經過估算消退系數為0 . 8 .耦合著這兩種不同地下徑流機制的clm模型都可以計算出每個網格的地表地下徑流深，採用dag lohman 34 ， 35發展的匯流模型進行匯流由於是研究地下徑流，所以取每個網格的地表徑流為0 ，該模型採用單位線計算坡面匯流線性聖維南saint - venant equation進行河道匯流
  5. Geography position and meteorology character in gongboxia watershed are analyzed, according to which the excess of infiltration and instantaneous unit hydrograph are used in runoff and affluence models, and muskingum routing method in river course affluence, kalman filtering technique and least square method in real - time correction

    分析公伯峽流域所處地理位置及該流域內的氣象特徵，確定產、匯流模型採用超滲產流和瞬時單位線，河道匯流採用馬斯京根法，實時校正法由卡爾曼濾波和最小二乘法組成。
  6. Cthe method of establishment of spatial analysis information system about water resource in longkou city based on water experiment and observational data and special map, spatial database and attributive database of water resource is established with arc / info7. 1 ~ arcview3. 1 ~ photoshop5. o ~ idrisi2. o ~. visual foxpro5. o. taking horton geomorphology and valdes geomorphicly immectiate unit hydrograph ( g theory ) as theory direction, the database is analyzed and mathematical models is found. linking basic database and model database, that spatial database and attributive database of water resource is established

    龍口市水資源時空分析信息系統構建的方法以水利實驗、觀測數據和專題地圖等資料為基礎數據，在arc / info7 . 1 、 arcview3 . 0 、 photoshop5 . 0 、 idrisi2 . 0 、 visualfoxpro5 . 0技術支持下，構建起水資源空間數據庫和屬性數據庫；以g理論和horton地貌律為理論指導，進行數據庫分析，並建立水資源數學計算模型，即模型庫構建；將基礎數據庫和數學模型庫藕合在一起，建立起龍口市水資源時空分析信息系統。
  7. The geomorphological instantaneous unit hydrograph ( giuh ) is viewed as the frequency distribution of the times of arrival of individual water deoplets at the catchment outlet. the travel path, for a typical hillslope cell. consists of a hillslope fraction, corresponding to overland flow and a stream fraction, corresponding to concentrated channeled flow. to obtain the time of travel, velocities must be defined. hillslope and stream velocities vary with location and must be strongly correlated with slope, and therefore a spatial distribution of velocities and hence of travel times could be obtained. the present methods of giuh neglect any time delays associated with overland flow pathways

    地貌單位線被看作是流域上各水質點在弱相互作用下，到達流域出口匯流時間的頻率分佈。對於一個典型的山坡型網格單元，匯流路徑由兩部分組成，即坡地部分和河道部分，為了得到匯流時間，必須首先確定匯流速度。坡地和河道的匯流速度隨著區域位置而變，並且必然與坡度有關，因此，可首先計算流速的空間分佈，進而得到匯流時間的空間分佈。
  8. According to the collected data in first two years, the study tried to simulate the runoff model by the instantaneous unit hydrograph theory and analyzed the data, the results were shown as follows

    本文系以瞬時單位歷線為基礎，進行逕流歷線之模擬，同時將分析整理前兩年之觀測資料，所得之初步結果列述如下：
  9. The instantaneous unit hydrograph theory would be suitable for the high antecedent baseflow and the high rainfall intensity to estimate the direct runoff, but it still needs to prove its fitness with much more cases

    在臨前基流量較大或降雨強度較大時，應用瞬時單位歷線理論分析逕流特性之準確性較高，然確實之適用條件仍有待進一步之研究。
  10. The results show that the minus value and fluctuation of unit hydrograph can be mitigated and the error of observed discharge can be withstood using the robustified ridge estimation

    最後採用抗差嶺估計來推算單位線，該方法既可以解決共線性的問題，也可以抗禦粗差的影響，得到比較穩定的單位線。
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