搜索结果: 1-13 共查到“水文学 Fluctuations”相关记录13条 . 查询时间(0.156 秒)
Groundwater fluctuations in heterogeneous coastal leaky aquifer systems
Groundwater fluctuations heterogeneous coastal leaky aquifer systems
2010/12/22
In the past, the coastal leaky aquifer system, including two aquifers and an aquitard between them, was commonly assumed to be homogeneous and of infinite extent in the horizontal direction. The leaky...
Estimation of the impact of short-term fluctuations in inputs on temporally aggregated outputs of process-oriented models
short-term fluctuations inputs outputs process-oriented models
2009/12/4
Process-oriented models driven by highly resolved meteorological inputs and comprising a short internal time step are sometimes used to predict substance fluxes in air, soil and water over fairly long...
Fluctuations in the Waterlevel in Wells Due to Variations in Atmospheric Pressure
Fluctuations Waterlevel in Wells Variations Atmospheric Pressure
2009/10/29
Deviations from the classical theory of the barometric efficiency (Jacob 1940) is
shown in some examples. A model with a semipermeable bed overlyingthe aquifer
is proposed, and equations for the flo...
Determination of Aquifer Diffusivity from Annual Fluctuations of Ground Water Levels
Aquifer Diffusivity Annual Fluctuations Ground Water Levels
2009/10/29
Annual fluctuations of ground water levels of an aquifer are described as a
consequence of water recharging periodically over a part of the aquifer. These
areas can be depicted by drawing maps showi...
Seasonal Fluctuations of Physical and Chemical Parameters of a Weir Basin in a Regulated West Norwegian River
Seasonal Fluctuations Physical Chemical Parameters Weir Basin
2009/10/28
Both before (1967-69) and after (1976-78) the regulation of the river Ekso in
western Norway, physical and chemical analyses were made of the river water.
After the regulation water samples for chem...
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...
Soil Moisture Deficits in South-Central Sweden II-Trends and Fluctuations
Soil Moisture Deficits South-Central Sweden Trends and Fluctuations
2009/10/27
Soil moisture fluxes in forest and grassland soils were analyzed for a rather dry region in south-central Sweden in order to assess climatologically induced dryness variability. Time series were const...
Frequency of Extremes and its Relation to Climate Fluctuations
Frequency of Extremes Climate Fluctuations
2009/10/26
Possible consequences of climate change concern both changes in long-term
mean values of runoff and changes in frequency and magnitude of extreme
runoff events. The physical safety of dams and prote...
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...
Long Rhythmic Water Level Variations in Lake Saimaa compared with the Fluctuations in some Climatological Elements
Rhythmic Water Level Variations Lake Saimaa Fluctuations Climatological Elements
2009/6/19
Long Rhythmic Water Level Variations in Lake Saimaa compared with the Fluctuations in some Climatological Elements.
On Short Period Fluctuations of Water Level of an Ice-covered Lake.
Hydrological processes and water resources management in a dryland environment IV：Long-term groundwater level fluctuations due to variation in rainfall
Long-term groundwater level fluctuations rainfall dryland environment
2009/5/26
To evaluate the effects of variations in rainfall on groundwater, long-term rainfall records were used to simulate groundwater levels over the period 1953-96 at an experimental catchment in south-east...
Triple diagram model of level fluctuations in Lake Van, Turkey
fluctuation hydrologic budget lake level Kriging prediction
2009/3/12
This paper presents a triple diagram method (TDM) based on the Kriging technique for predicting future lake levels from two antecedent measurements, which are considered as independent variables.