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This paper presents a review of groundwater models capable of simulating solute transport
(i.e. advection-dispersion) and equilibrium chemistry processes.
Introductory, basic model components are di...
On the Generation of Stream Runoff in Till Soils
Generation of Stream Runoff Till Soils
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2009/10/27
Isotope studies in Swedish till basins indicate that stream stormflow is normally
dominated by pre-event water. The rapid response of the groundwater outflow
to infiltration may be explained by a la...
Calcium Budgets for Catchments as Interpreted by Strontium Isotopes
Calcium Budgets Catchments Strontium Isotopes
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2009/10/27
Strontium isotopes in precipitation, soil and runoff water can be used to establish
a ratio of wet plus dry deposited Sr to Sr released by weathering. This ratio
is especially enhanced in areas with...
Over-Winter Chemistry of Subarctic Fens,Eastern Canada
Over-Winter Chemistry Subarctic Fens
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2009/10/27
Two subarctic fens (one nutrient-poor, one nutrient-rich) were sampled from
October, 1984 to July, 1985 near Schefferville, northern Quebec. The changes
in concentations of chemicals (pH, conductanc...
The Solubility and Hydrolysis of Aqueous Aluminium Hydroxides in Dilute Fresh Waters at Different Temperatures
Solubility Hydrolysis Aqueous Aluminium Hydroxides Dilute Fresh Waters
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2009/10/26
This study is mainly focusing on the effect of temperature and pH on the
chemistry of AI(OH),(s) using available thermodynamic data.
The calculations show that a doubling of the [Hf] or a decrease i...
Difficulties in Deducing Temporal Changes in Precipitation Chemistry from Snow and Ice Cores:The Spatial Variability Problem
Temporal Changes Precipitation Chemistry Snow and Ice Cores Spatial Variability Problem
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2009/10/26
Depth profiles of chemical impurities found in snow and ice have usually been
interpreted simply in terms of temporal changes in atmospheric concentrations
of the species of interest. Measurements o...
Equilibrium Speciation Models for Hg,Cd,and Pb in the Gulf of Bothnia and its Catchment Area
Equilibrium Speciation Models Gulf of Bothnia Catchment Area
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2009/10/26
Equilibrium speciation models were established for Hg (11), Cd (11) and Pb (11)
in bog-, river- and sea water having a composition corresponding to that of the
Gulf of Bothnia (6%0 salinity). The ca...
Sulphur and Oxygen Isotopes Behaviour in Sulphates of Atmospheric Ground water System Observations and Model
Sulphur Oxygen Isotopes Behaviour Atmospheric Ground water System
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2009/10/26
Comparison of sulphate concentrations in groundwaters and atmospheric precipitation
suggests that about 30 % of groundwater sulphate may be of atmospheric
origin. Another source of sulphate ion is t...
Runoff Generation in a High Boreal Wetland in Northern Canada
Runoff Generation High Boreal Wetland Northern Canada
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2009/10/26
The stable isotope composition of water and major-ion concentrations were
measured in a small catchment tributary to Manners Creek, situated in the
zone of discontinuous permafrost near Fort Simpson...
Relocation of Major Ions in Snow along the Tundra-Taiga Ecotone
Relocation of Major Ions Tundra-Taiga Ecotone
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2009/10/26
The chemistry of seasonal snowcovers north of Inuvik, Northwest Territories,
Canada was stratified by biophysical landscape. In this region, deposition of
ions in winter occurs largely through the r...
The generation of acidic waters and the release of dissolved metals from inactive
sulphide mine-tailings disposal is a well-known environmental problem.
The flux of oxygen across the surface of the ...
Metal Transport in Groundwater Contaminated by Acid Mine Drainage
Metal Transport Acid Mine Drainage
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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,...
Assessment of Spatial Variability of Major-Ion Concentrations and DEL Oxygen-18 Values in Surface Snow,Upper Fremont Glacier,Wyoming,U.S.A.
Spatial Variability Major-Ion Concentrations DEL Oxygen-18 Values
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2009/10/26
One hundred samples were collected from the surface of the Upper Fremont
Glacier at equally spaced intervals defined by an 8,100 m 2 snow grid to assess
the significance of lateral variability in ma...
Cumulative Semivariogram Models of Trace Elements from Springs in Saudi Arabia
Cumulative Semivariogram Models Trace Elements Saudi Arabia
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2009/10/26
Trace elements are rarely distributed in earth's crust and they are invariably in
low concentrations. Due to this low concentration they are not analyzed by
conventional hydrochemical methods but by...
Modelling the Effects of Acid Sulphate Soils on River Acidity in Finland
Effects of Acid Sulphate Soils River Acidity
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2009/10/26
Acid sulphate (AS) soils cover extensive areas of the coastal plains in western
Finland. These soils constitute an environmental hazard due to their ability to
relcase acidity when exposed to atmosp...