搜索结果: 16-30 共查到“知识库 水文物理学”相关记录452条 . 查询时间(2.196 秒)
Groundwater resources evaluation in the Piedmont zone of Himalaya, India, using Isotope and GIS techniques
piedmont Himalayan foothill region Tritium Tagging Technique isotopic techniques
2015/8/11
Integrated geohydrological, isotopes and Geographical Information System (GIS) techniques have been used to delineate groundwater resources potential in the Piedmont zone of Himalayan foothill region,...
Hydrology and Water Balance of Devils Lake Basin: Part 2 - Grid-Based Spatial Surface Water Balance Modeling
water balance Devils Lake remote sensing Geographic Information System
2015/8/11
In this part of the study, grid-based spatial water balance approach was used to estimate the annual water balance of Devils Lake basin, hydrologically closed lake located in the Red River of the Nort...
Classification of Spatio - Temporal Pattern of Rainfall in Iran Using a Hierarchical and Divisive Cluster Analysis
Rainfall pattern Cluster Analysis Ward Method Iran
2015/8/11
The identification of spatial rainfall pattern is an essential task for hydrologists, climatologists as well as regional and local planners and managers. This is due to the variability of both the tem...
Estimation of aquifer hydraulic characteristics from electrical sounding data: the case of middle Imo River basin aquifers, south- eastern Nigeria
Aquifer hydraulic characteristics Dar - Zarrouk parameters
2015/8/11
We have used the concept of Da - Zarrouk parameters (transverse unit resistance (R) and longitudinal conductance (C)) in porous media to determine aquifer hydraulic characteristics within the middle I...
An investigation of groundwater condition by geoelectrical resistivity method:A case study in Korin aquifer,southeast Iran
Resistivity groundwater aquifer electrical sounding Iran
2015/8/6
The Korin basin is located in Sistan and Baluchestan Province in the southeast of Iran. Rapid agricultural development in this basin has caused increase on demand for water supply. The basin is charac...
Assessment of the Impact pf Mining on Agricultural Land using Erosion-Deposition Model and Space Borne Multispectral Data
Mining Agricultural Land Erosion-Deposition Model Space Borne Multispectral Data
2015/8/6
Since erosion of mine overburden and mine dump leads to its deposition down the slope in the catchment, an attempt was made to study the erosion-deposition pattern in a micro watershed in part of Goa ...
Spatial Variability of Groundwater Recharge - II. Factors Affecting Variability and Taking Account of it in Estimating Recharge
Spatial variability Groundwater recharge Sri Lanka
2015/8/6
The accompanying paper provided evidence to suggest that spatial variability of groundwater recharge is ‘true’ variability. This paper attempts to determine the major causes of such variability even a...
Spatial Variability of Groundwater Recharge - I. Is it really variable?
Spatial variability Groundwater recharge Sri Lanka
2015/8/6
The spatial variability of recharge is an important consideration in estimating recharge especially as all methods of estimating it are 'point' estimates and in most places recharge varies in space. T...
LINKAGE OF ARCVIEW GIS WITH THE RZWQM MODEL
geographic Information System quasi-distributed mathematical modeling
2015/8/6
The Root Zone Water Quality Model (RZWQM) is a one-dimensional, lumped field-scale model. It can simulate major physical, chemical, and biological processes in an agricultural crop production system. ...
Estimating sediment yield using Agricultural Non-Point Sources (AGNPS) model: The effects of slope information from different GIS softwares
Geographical Information System GIS slope information Sediment yield AGNPS model tropical catchment
2015/8/6
This study compares the effects of slope information derived from three GIS software on sediment yield as estimated using AGNPS model. The three GIS software are IDRISI for Windows, ERDAS Imagine and ...
Diffused Interface Model to Prevent Ingress of Sea Water in Multi-Layer Coastal Aquifers
Diffused Interface Model Ingress Sea Water
2015/8/6
In many regions coastal aquifers are major source of supply of water to various sectors. However, indiscriminate pumping from these aquifers leads to seawater intrusion which is difficult to contain. ...
东辽河南崴子灌区渠首闸门流量系数的率定
南崴子灌区 渠首闸门 流量系数 水文测验
2015/9/17
闸门流量系数的准确率定是灌区引水流量计算及水资源配置的重要依据。通过对吉林省公主岭市南崴子灌
区渠首段进行水文测验,获得水位、流量等数据;再通过统计计算,分析了流量系数与闸门上下游水位差、流量系数
与闸门相对开度以及流量系数与下游流量之间的关系。结果表明,流量系数与闸门上下游水位差呈负相关关系,而
流量系数与闸门相对开度、流量系数与下游流量呈正相关关系,而且相关系数均在0.8以上。
松花江休养生息前后酚类污染物浓度变化对比
松花江 酚类污染物 休养生息
2015/9/17
酚类化合物具有一定的毒性,自然环境中不易分解,是重要的环境污染物。松花江在休养生息前水体中酚类
化合物污染严重,且呈现出多元酚的污染态势。通过对连续三年全江7个重点断面酚类化合物浓度进行对比分析,
发现休养生息措施已经使得松花江下游江段水体中的多元酚类含量大幅度下降。
应用N2S方法和标准k2E湍流模型,采用SIMPLE法,对离心泵内部三维固液两相流进行了模拟计算。得到
不同固相(颗粒)浓度下的离心泵内部压力分布和内部颗粒浓度分布情况,并且基于流固耦合原理对离心泵叶轮进
行结构分析,采用多物理场协同仿真平台ANASYSWorkbench,通过单向流固耦合技术实现离心泵叶轮结构的仿
真计算,获得了离心泵叶轮在同一工况、不同固相浓度下的等效应力及变形情况。计算...
Application of Neuro-Genetic Algorithm to Determine Reservoir Response in Different Hydrologic Adversaries
neuro-genetic models reservoir response
2015/3/1
The hydrologic adversaries like high magnitude storms, extreme dryness, aridity, more than normal
demand for water etc. often cause a huge stress on the storage structures such as reservoirs and che...