搜索结果: 61-75 共查到“水文学 Groundwater”相关记录177条 . 查询时间(0.035 秒)
The environmental isotope oxygen-18 was used as a tracer to separate stream
discharge into flows originating from groundwater and fresh meltwater. Two,
mainly forested, watersheds (areas 6.6 and 4.0...
Exceptional Groundwater Level Fluctuations at the Dutch Island of Schiermonnikoog
Exceptional Groundwater Level Fluctuations Dutch Island Schiermonnikoog
2009/10/28
During a hydrological-meteorological investigation at a former beachplain at
the Dutch island of Schiermonnikoog, groundwater fluctuations were
recorded. Except for daily changes of the groundwate...
The chemistry of ground- and surface-water in areas of similar geologic settings
are compared by plotting the equivalent concentrations of each component
in an XY-diagram. The deviations of each che...
Simulation of Groundwater Response by Conceptual Models-Three Case Studies
Groundwater Response Conceptual Models Three Case Studies
2009/10/28
A conceptual runoff model is modified and applied to groundwater observations
in an unconfined till aquifer, a confined aquifer under a clay deposit and
a large unconfined esker aquifer. The results...
Existing conflicts or problems concerning groundwater in Norwegian river
plains are outlined. Emphasis is placed on the effects of river regulation. Two
methods of determining aquifer diffusivity ar...
Representativeness of Chemical Analysis of Groundwater
Representativeness Chemical Analysis Groundwater
2009/10/28
This paper raises the question of the representativeness of a single chemical
analysis of groundwater. This is undertaken with the knowledge of the variations
in chemical constituents obtained in th...
Trends in Nitrate Pollution of Groundwater in Denmark
Trends Nitrate Pollution Groundwater in Denmark
2009/10/28
A nation-wide investigation of nitrate concentrations in groundwater in
Denmark has been carried out. The investigation is based on analyses of
groundwater samples from app. 11,000 wells and drinkin...
Deep Groundwater Contribution to a Small Stream
Deep Groundwater Contribution Small Stream
2009/10/28
The contribution of surface water and groundwater were studied in a small
stream in the central part of Sweden using electrical conductivity of water as a
tracer. The portion of deep groundwater inc...
A Study of Soilwater and Groundwater Flow of Hillslopes–Using a Mathematical Model
Soilwater Groundwater Flow Hillslopes Mathematical Model
2009/10/27
The soil and groundwater flow of a hillslope adjacent to a stream has been
studied using a physically based mathematical model. Values of soil parameters
have been taken from investigations of Swedi...
Groundwater Modelling for Hydropower Development in Iceland
Groundwater Modelling Hydropower Development Iceland
2009/10/27
Groundwater problems in moberg and lava formations are frequently encountered
in connection with development of hydroelectric power resources in the
volcanic zones in Iceland. The paper gives accoun...
Sensitivity of the Groundwater Mound Model for Predicting Mire Topography
Groundwater Mound Model Mire Topography
2009/10/27
The Dupuit-Forcheimer model for groundwater mounds has been proposed to
explain the morphology of raised peat mires. This paper discusses the sensitivity
of the model as a predictor for mire profile...
Electromagnetic Profiling for Groundwater in Precambrian Basement Complex Areas of Nigeria
Electromagnetic Profiling Groundwater Precambrian Basement Complex Areas
2009/10/26
Ground electromagnetic profiling, using a Geonics EM34-3 instrument, has
been employed to identify areas of high conductivity in a Precambrian basement
complex terrain of Nigeria.Field examples, con...
Effect of Climate Variability and Change in Groundwater in Europe
Climate Variability Groundwater in Europe
2009/10/26
Public water supply in Europe relies very heavily on groundwater. Recharge of
groundwater takes place mainly in the winter months. An analysis of winter
rainfall data shows that current recharge rat...
A numerical model developed for sensitivity analysis of groundwater flow is
presented. Sensitivity analysis is a useful complementary aid for groundwater
flow modelling to assess the importance of v...
Experiments of Conceptual Mathematical Groundwater Dynamics and Runoff Modelling in Latvia
Conceptual Mathematical Groundwater Dynamics Runoff Modelling
2009/10/26
A mathematical model METUL for estimating the daily groundwater level and
drainage, surface and subsurface runoff in small areas is described. Input data
for the model are daily mean values of air t...