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Ice break-up on northern rivers presents a unique research challenge because of its dynamic nature and complexity of physical, chemical and biological processes. Rapidly moving ice, ice jamming, flo...
The orientation of macroscopic and n~icroscopic particles in silty, sandy basal till appears to have little effect on aquifer anisotropy. The orientation of 108 elongate pebble and cobble-sized part...
A simple, but efficient, method for automatic calibration of the conceptual HBV rainfall-runoff model was developed. A new criterion, which combines the com- monly used efficiency criterion R 2 and ...
A model for water exchange of a basin connected to the open sea by two channels has been worked out. The model is applied on the Gulf of Riga, where the water exchange processes versus strong landba...
Usually the HBV model is calibrated by seeking one optimal parameter set that represents the catchment. From experience we know, however, that it is hardly poss~ble to find an unique parameter set. ...
Estimations of potential evapotranspiration as input to runoff calculations with the HBV model are usually given as monthly standard values calculated with the Penman method. Daily changes in the we...
Nutrient concentrations and exports were monitored for eight years in two agriculture- dominated watersheds in the central part of the Vastgota Plain in Sweden. The hydrology and the nutrient concen...
Marked vertical variations of ions and oxygen isotopes were present in the snowpack at the glacier Austre Okstindbreen during the pre-melting phase in 1995 at sites between 825 m and 1,470 m above s...
Catchment areas of Icelandic rivers are mostly barren or with little vegetation cover in the highlands, but with heathland and mire vegetation in the lowlands. Chemical composition and nutrient avai...
Ice samples were taken in winter 1996 for determining the quality and quantity of sediment inclusions (suspended matter). The study area was the coast of the Gulf of Finland in the Baltic Sea. The d...
Chemical profiles in snowpacks were observed during snow accumulation and melt periods at subalpine sites in the southern interior of British Columbia. During accumulation periods, concentrations of...
Deltas of major rivers are among the most productive and environmentally sensitive components of riverine systems in cold regions, and are of great hydrological and ecological importance. Much of th...
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...
Throughfall reaching the ground surface on forested slopes may follow a variety of pathways to receiving water bodies, and travel times and chemical interactions between water and soil may differ be...
The hydraulic conductivity in structured soils is known to increase drastically when approaching saturation. Tension infiltration allows in situ infiltration of water at predetermined matric potenti...

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