搜索结果: 151-165 共查到“知识库 水文测量”相关记录621条 . 查询时间(3.79 秒)
STOCHASTIC MODELLING OF STORM PRECIPITATION
STOCHASTIC MODELLING STORM PRECIPITATION
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2009/10/29
The distribution of precipitation in time during storms constitutes a complex
stochastic process. Mathematical modelling of the process is quite difficult.
The process is conceived as a finite-durat...
LYSIMETERS WITH RAINFALL AND SOIL WATER CONTROL
LYSIMETERS RAINFALL SOIL WATER CONTROL
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2009/10/29
The lysimeter installation described comprises 36 concrete tanks each with
a soil surface of 4 m2.. The installation is useful for plant growth experiments
under natural conditions involving differe...
CHECKS ON THE WATER BALANCE OF A SMALL CATCHMENT
CHECKS WATER BALANCE SMALL CATCHMENT
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2009/10/29
The paper discusses water balance data for a small (16 km2) boulder clay
catchment. In order to check the accuracy of the calculations, water balances
are cast for different, overlapping periods of ...
PRECIPITATION MEASUREMENTS WITH VARIOUS PRECIPITATION GAUGE INSTALLATIONS
PRECIPITATION MEASUREMENTS PRECIPITATION GAUGE INSTALLATIONS
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2009/10/29
An account is given of precipitation measurements taken with various precipitation
gauge installations at Ultuna, Sweden during 1957-1960. A new
gauge constructed to measure small spatial variations...
VARIABILITY OF SEASONAL AND ANNUAL RUNOFF IN NORWAY
VARIABILITY SEASONAL AND ANNUAL RUNOFF NORWAY
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2009/10/29
A preliminary map of variability of annual runoff in Norway has been
prepared based on estimates of the coefficient of variation cv for 56
non-regulated discharge stations having more than 35 years ...
RELATIONSHIP BETWEEN STREAM WATER TEMPERATURE AND AMBIENT AIR TEMPERATURE
RELATIONSHIP STREAM WATER TEMPERATURE AMBIENT AIR TEMPERATURE
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2009/10/29
The water temperature of streams and rivers is required for various
practical purposes and is frequently obtained by calculating the heat
budget. This method is tedious and yields rather inaccurate ...
GEOHYDROLOGIC WELL-LOGGING
GEOHYDROLOGIC WELL-LOGGING
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2009/10/29
Well-logs have been used to gain geohydrologic information mainly in
Precambrian rocks. The logs used are the self-potential, the diameter, the
temperature, and the electric conductivity of water. A...
EVALUATION OF PUMPING TESTS IN PARTIALLY PENETRATING WELLS
EVALUATION PUMPING TESTS PARTIALLY PENETRATING WELLS
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2009/10/29
Pumping tests in wclls that partially pcnetrate aquifers have been
evaluated by means ol type curves and a simplified solution of nonsteady
flow. The influence of skin effect on pumping tests in the...
SINGLE AND MULTI-SITE OPERATIONAL HYDROLOGY
SINGLE MULTI-SITE OPERATIONAL HYDROLOGY
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2009/10/29
This paper reviews several different single- and multi-site generation
models to complement those papers in which the models are developed
but not applied. Initially the historical time series is lo...
STATISTICAL INTERPRETATION OF HYDROMETEOROLOGICAL EXTREME VALUES
STATISTICAL INTERPRETATION HYDROMETEOROLOGICAL EXTREME VALUES
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2009/10/29
The application of Jenkinson's method to extremal distributions for low
probability annual extremes of rainfall and stream flow is studied and
discussed.A statistical mcthod devised by Jenkinson has...
POTENTIAL EVAPOTRANSPIRATION AND WATER BALANCE IN ICELAND
POTENTIAL EVAPOTRANSPIRATION WATER BALANCE ICELAND
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2009/10/29
The paper describes the results of estimations of potential evapotranspiration
(ED) in Iceland using Penman's equation. The calculations are based
on distribution maps for global radiation for the p...
A NOTE ON SINGLE AND MULTI-SITE OPERATIONAL HYDROLOGY
SINGLE MULTI-SITE OPERATIONAL HYDROLOGY
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2009/10/29
Matalas' Residual Method as given in our paper, McMahon, Codner & Philips
(1972), contains an inconsistency. Initially we compute the non-seasonal spatial
correlations; this implicitly standardizes ...
SEA LEVEL VARIATIONS IN THE GULF OF BOTHNIA
SEA LEVEL VARIATIONS GULF OF BOTHNIA
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2009/10/29
An attempt is made to compute the sea level variations in the Gulf of
Bothnia, which is isolated by islands and thresholds from the Baltic Sea
proper.Observations from tidc gauges during the 30-year...
GROUNDWATER DEVELOPMENT AND ITS INFLUENCE ON THE WATER BALANCE
GROUNDWATER DEVELOPMENT INFLUENCE WATER BALANCE
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2009/10/29
Lowering the head of an artesian aquifer in Zealand, Denmark by pumping
of groundwater is shown to affect the water balance.
Based on known amounts of groundwater being developed, the coefficient
o...
FILLING IN GAPS IN RAINFALL RECORDS BY SIMULATED DATA
GAPS RAINFALL RECORDS SIMULATED DATA
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2009/10/29
The concept of the rainfall coincidence rate is introduced and is used as
a tool lor corrccting the errors in the rainfall rccords which are due to
shifts. A method of simulating missing rainfall da...