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Entropy production by evapotranspiration and its geographic variation
hydrologic cycle evapotranspiration land surface entropy production principle of Maximum Entropy Production vegetation effects
2015/2/3
The hydrologic cycle is a system far from thermodynamic equilibrium that is characterized by its rate of entropy production in the climatological mean steady state. Over land, the hydrologic cycle is ...
Dating of streamwater using tritium in a post nuclear bomb pulse world: continuous variation of mean transit time with streamflow
tritium nuclear bomb pulse world
2010/12/22
Tritium measurements of streamwater draining the Toenepi catchment, a small dairy farming area in Waikato, New Zealand, have shown that the mean transit time of the water varies with the flow rate of ...
Confidence intervals for the coefficient of L-variation in hydrological applications
Confidence intervals L-variation hydrological applications
2010/12/22
The coefficient of L-variation (L-CV) is commonly used in statistical hydrology, in particular in regional frequency analysis, as a measure of steepness for the frequency curve of the hydrological va...
Temporal Variation in Snowcover Area During Melt in Prairie and Alpine Environments
Temporal Variation Snowcover Area Alpine Environments
2009/10/26
Information on the temporal variation in snow-covered area of watershed during
melt is requisite for accurate predictions of runoff. The amount of the gross
watershed area that is snow-covered affec...
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...
VARIATION OF FLUORIDE IN GROUNDWATERS OF CRYSTALLINE TERRAIN
VARIATION OF FLUORIDE CRYSTALLINE TERRAIN GROUNDWATERS
2009/10/19
Groundwater in shallow aquifers that supply water to dugwells in crystalline terrain of the Visakhapatnam region, Andhra Pradesh, have higher concentrations of flouride (F) than those of borewells fro...
Spatial and temporal variation in pH, alkalinity and conductivity in surface runoff and groundwater for the Upper River Severn catchment
pH surface runoff alkalinity conductivity Upper River Severn catchment
2009/6/8
Measurements of pH, alkalinity and electrical conductivity are used to examine the extent of the spatial and temporal variation in stream and ground water chemistry for the Upper Severn catchment, Pl...
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...
Determination of the historical variation of the trophic state in lakes using sediment stratigraphies
trophic state lakes using sediment
2009/5/13
Biogenic silica (BSi) and phosphorous (P) accumulation were investigated in sediment cores from Karlskärsviken, a bay of Lake Mälaren. The aim was to make use of BSi and P relations in sedim...
Evaluating the effects of stomata development and senescence on the seasonal variation in stomatal conductance
stomata development stomatal conductance seasonal variation
2009/4/13
We examined the influence of phenological changes in stomata on the seasonal variation of stomatal conductance using a Jarvis-type conductance model that included functions representing the active sto...
Analysis of the spatial variation in the parameters of the SWAT model with application in Flanders, Northern Belgium
hydrological regionalisation
2009/3/6
Operational applications of a hydrological model often require the prediction of stream flow in (future) time periods without stream flow observations or in ungauged catchments. Data for a case-specif...
An analysis of the long-term variation in stream water quality for three upland catchments at Loch Dee (Galloway, S.W. Scotland) under contrasting land management
trend analysis land management sea-salts S.W. Scotland
2009/3/5
A long term record of water chemistry, consisting of twenty years of weekly spot samples, from three sub-catchments draining into a loch and the loch outflow in Galloway, S.W. Scotland have been analy...