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Accounting for instream lakes when interpolating stream water chemistry observations
geostatistics kriging stream water chemistry
2015/1/9
Direct monitoring of stream water chemistry is an increasingly important tool for securing stream water quality and assessing stream ecological functioning as it relates to overall ecosystem health. S...
The contribution of groundwater discharge to the overall water budget of two typical Boreal lakes in Alberta/Canada estimated from a radon mass balance
groundwater discharge overall water budget typical Boreal lakes radon mass balance
2010/2/1
Radon-222, a naturally-occurring radioisotope with a half-life of 3.8 days, was used to estimate groundwater discharge to small lakes in wetland-dominated basins in the vicinity of Fort McMurray, Cana...
pH has been determined in some lakes by using an in situ technique.
pH has also been measured in the usual way in the field and in the laboratory.
These measurements, together with the determination...
The Ionic Composition of Lakes Fed by Ground Water and Precipitation in the Upper Romerike District
Ionic Composition Ground Water Precipitation Upper Romerike District
2009/10/29
In the Upper Romerike District the lakes possess widely different chemical characteristics
depending on their hydrological conditions. The most dilute lakes are fed
only by precipitation, and the mo...
In 50 lakes in south-eastern Norway hydrogen-ion concentration (pH) and
total hardness ("dH) were measured in surface water in the 1950's and then
once again 10 years later. Significant acidificatio...
Optical Properties of Dissolved Organic Matter in Finnish and Estonian Lakes
Optical Properties Dissolved Organic Matter Finnish and Estonian Lakes
2009/10/22
The main objective of the present study is to test various methods for describing
the absorption spectra of coloured dissolved organic matter (CDOM) and to
determine the numerical values of some opt...
Simulation of a Biogeochemical Model in Different Lakes
Simulation Biogeochemical Model Different Lakes
2009/10/22
Eutrophication, caused by nutrients leached from soil and emitted from point
sources, is a well-known problem in many Swedish lakes. There are several
countermeasures that can be used to reduce eutr...
Spatial variability of nitrate concentration in lakes in Snowdonia, North Wales, UK
Spatial variability North Wales nitrate concentration
2009/5/26
At a regional scale, high nitrate (NO3‾) concentrations in upland surface waters generally occur in tandem with high nitrogen (N) deposition levels. However, significant differences in the patte...
Increasing silicon concentrations in Bohemian Forest lakes
silicon concentrations Bohemian Forest lakes
2009/5/18
Long-term trends of dissolved silicon (Si) concentrations in five glacial lakes in the Bohemian Forest, Czech Republic, recovering from acidification show higher mobility of Si from the soil to surfa...
Tracing and quantifying groundwater inflow into lakes using a simple method for radon-222 analysis
groundwater radon-222 analysis
2009/5/13
Due to its high activities in groundwater, the radionuclide 222Rn is a sensitive natural tracer to detect and quantify groundwater inflow into lakes, provided the comparatively low activities in the l...