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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
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
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
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
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
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
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
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
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
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...
Nitrogen and Phosphorus Fluxes from Finnish Agricultural Areas to the Baltic Sea
Nitrogen and Phosphorus Fluxes Agricultural Areas Baltic Sea
2009/10/26
Nutrient losses from small drainage basins were compared to the nutrient
fluxes in small coastal rivers in order to study the representativeness of the
Finnish monitoring network of small basins, es...
Correlations between Concentrations of Plant Nutrients in Runoff from Small Catchments in Norway
Correlations Concentrations of Plant Nutrients Small Catchments
2009/10/26
Factor analysis investigated the relationship between different compounds of nitrogen,
phosphorus, potassium and suspended dry matter in runoff from catchments
in agricultural areas in southern and ...
Seasalt Effects on the Acid Neutralizing Capacity of Streamwaters in Southern Norway
Seasalt Effects Acid Neutralizing Capacity Southern Norway
2009/10/26
Input of neutral salt, primarily NaCI, from sea spray is an important factor for shortterm
acidification of surface water, primarily in already acidified areas, because Na
may substitute for H+ and ...
Release of Major Ions and Hydrogen Peroxide from Homogeneous,Melting Snow
Major Ions Hydrogen Peroxide Melting Snow
2009/10/26
We undertook two laboratory experiments to study the change of concentrations
and the preferential elution of major ions and hydrogen peroxide during melting
of a homogeneous snow pack. The elution ...
Oxygen Isotope and Ionic Concentrations in Glacier River Water:Multi-Year Observations inthe Austre Okstindbreen Basin,Norway
Oxygen Isotope Ionic Concentrations Glacier River
2009/10/26
Austre Okstindbreen, the largest glacier of the Okstindan area, Norway, covers
about 14 km2 within a drainage basin of 22.5 km2. Each year, about one third of
the discharge of the glacier river resu...