搜索结果: 76-90 共查到“水文学 groundwater”相关记录177条 . 查询时间(0.166 秒)
Metal Transport in Groundwater Contaminated by Acid Mine Drainage
Metal Transport Acid Mine Drainage
2009/10/26
Acid mine drainage from a rock dump at an abandoned mine in Dalarna,
Sweden, has contaminated the groundwater and created a leachate plume
characterized by low pH and high concentrations of Fe, SO4,...
Modeling the Effects of Rainfall Variability on Groundwater Recharge in Semi-Arid Tanzania
Rainfall Variability Groundwater Recharge Semi-Arid Tanzania
2009/10/26
A conceptual model of the effects of rainfall variability on groundwater recharge
was developed and applied to a small forested catchment in semi-arid Tanzania.
The model simulated dual-domain recha...
Subpmmafrost groundwater aquifers arc found in N~-Alesund, western Svalbard.
Recharge of groundwatcr takes place along thc basc of the nearby glaciers,
and groundwater tlows in open bedrock fracturc...
Combined Modelling of Groundwater Table and Open Water Level in Raised Mires
Combined Modelling Groundwater Table Open Water Level
2009/10/23
Wetlands are mostly characterized by a large proportion of open water and frequent
inundation. In most soil water flow models little attention is payed to phenomena
related to open water. In this st...
Concentration Data and Dimensionality in Groundwater Models:Evaluation Using Inverse Modelling
Concentration Data Groundwater Models Inverse Modelling
2009/10/23
A three-dimensional inverse groundwater flow and transport model that fits hydraulic-
head and concentration data simultaneously using nonlinear regression
is presented and applied to a layered sand...
Subpermafrost Groundwater Modelling in Ny-Ålesund,Svalbard
Subpermafrost Groundwater Ny-Å lesund
2009/10/23
Svalbard is a high arctic archipelago where the permafrost thickness is 150-450
m and almost continuous in ice-free areas. The model work was carried out in
N~-Alesundw, here the subpermafrost aquif...
The Effects of Frozen Soils on Groundwater Recharge and Discharge in Granitic Rock Terrane of the Canadian Shield
Frozen Soils Groundwater Recharge Granitic Rock Terrane
2009/10/23
Hydrologic measurements on groundwater flow systems of the Canadian Shield
during the winter period provide insight into groundwater dynamics and can
support conclusions based on measurements of the...
Long-term Variation in the Stability of the Meromictic Lake Nordbytjernet Caused by Groundwater Fluctuations
Long-term Variation Meromictic Lake Nordbytjernet Groundwater Fluctuations
2009/10/23
A zone with permanent anoxic conditions prevailed in the deep waters of Nordbytjernet
before 1978 due to a significant depth gradient in dissolved substances.
High concentrations of manganese and bi...
Geoelectrical Investigations in a Hard Rock Area Containing Pockets of Saline Groundwater
Geoelectrical Investigations Hard Rock Area Saline Groundwater
2009/10/23
Areas of fresh and brackish groundwaters have been delineated in an area underlain
by granulitic rocks using electrical resistivity method. A sharp boundary between
fresh and brackish waters has bee...
Fracture Systems and Groundwater Flow in the København Limestone Formation
Fracture Systems Groundwater Flow Kø benhavn Limestone Formation
2009/10/23
In connection with large construction works in the Copenhagen and Oresund
area a large number of investigations were conducted on the Kobenhavn Limestone
Formation. By combining the different invest...
Hydrologic Investigations of Groundwater and Surface-water Interactions In Subarctic Alaska
Hydrologic Investigations Surface-water Interactions Subarctic Alaska
2009/10/23
Dynamic interactions between rivers and adjacent aquifers can significantly affect
near-bank geochemistry and processes associated with natural attenuation
of contaminants by mixing water or introdu...
Sources of Major Chemical Constituents in Surface Water and Groundwater of Southern Sweden
Major Chemical Constituents Surface Water Groundwater of Southern Sweden
2009/10/23
The chemistry of groundwater has been altered to a large degree through the influence of human activities. Addition of acids through precipitation and dry deposition, nitrogen from agriculture and sew...
NITRATE-POLLUTED GROUNDWATER AT AZUL, ARGENTINA：CHARACTERIZATION AND MANAGEMENT ISSUES
NITRATE-POLLUTED ARGENTINA GROUNDWATER
2009/10/19
The City of Azul (Buenos Aires Province, Argentina), as many small cities in the country, is supplied entirely by local groundwater. Such waters contain variable, but generally high concentrations of ...
GROUNDWATER CONTAMINATION FROM HOME HEATING OIL SYSTEMS
GROUNDWATER CONTAMINATION HOME HEATING OIL SYSTEMS
2009/10/19
The storage of home heating oil on private residential property is widespread and common in Ireland but in recent years there has been a noticeable increase in the number of tank and line leaks and as...
USE OF THE SPATIAL ANALYSIS NEURAL NETWORK (SANN) METHOD FOR REGIONAL GROUNDWATER CONTAMINATION DECISION-MAKING
Spatial Analysis Neural Network DECISION-MAKING GROUNDWATER CONTAMINATION
2009/10/19
Spatial Analysis Neural Network (SANN) is a specified neural network for conducting the spatial analysis of any type of variable. It provides a nonparametric mean estimator and also estimators of high...