搜索结果: 1-15 共查到“水文测量 Methods”相关记录16条 . 查询时间(0.203 秒)
Evaluation of the Wetland Mapping Methods using Landsat ETM+ and SRTM Data
wetlands remote sensing mapping delineation automated methods semi-automated methods Limpopo river basin
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2015/8/13
Overarching goal of this paper was to evaluate automated and semi-automated methods of mapping wetlands using Landsat ETM+ and SRTM data. Automated methods consisted of: (a) slope derived from SRTM, (...
Improved non-linear transfer function and neural network methods of flow routing for real-time forecasting
non-linear transfer function neural network methods flow routing real-time forecasting
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2009/12/4
Data-based methods of flow forecasting are becoming increasingly popular due to their rapid development times, minimum information requirements, and ease of real-time implementation, with transfer fun...
ON THE GROUND-WATER DISCHARGE TO THE BALTIC SEA AND METHODS FOR ESTIMATING IT
GROUND-WATER DISCHARGE BALTIC SEA METHODS FOR ESTIMATING IT
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2009/10/29
The methods for quantitatively estimating ground-water discharge to the
Baltic Sea and the possibilities of applying these methods to investigations
of the role of ground water in the water and salt...
COMPARISON OF THE METHODS OF ESTIMATING MEAN AREAL RAINFALL
COMPARISON METHODS OF ESTIMATING MEAN AREAL RAINFALL
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2009/10/29
A comparison of nine different methods of estimating mean areal rainfall
is made. Five areas from three continents of the world are selected for application
of the methods. The methods are utilized ...
A Comparison of Some Methods for Estimation of Potential Evaporation
Methods Estimation Potential Evaporation
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2009/10/28
In most of the important agricultural regions of the world, evaporation in the
growing season exceeds the precipitation, and also often the sum of
precipitation and plant available water in the root...
A Comparison of Some Methods of Deriving the Instantaneous Unit Hydrograph
Comparison Some Methods Instantaneous Unit Hydrograph
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2009/10/28
The geomorphological instantaneous unit hydrograph (IUH) proposed by
Gupta et al. (1980) was compared with the IUH derived by commonly used
time-area and Nash methods. This comparison was performed ...
Methods Used for Calculation of Plant Available Water in Nordic Till Soils
Calculation Available Water Nordic Till Soils
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2009/10/27
This paper describes different methods used in the Nordic countries for calculation
of the storage capacity of tills for water available for plant production. The
purpose of the paper is to give an ...
Methods for Measuring the Saturated Hydraulic Conductivity of Tills
Methods Saturated Hydraulic Conductivity Tills
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2009/10/27
The texture of tills excludes many of the traditional methods for measurement
of the saturated hydraulic conductivity. The hydraulic conductivity is scale
dependent and for massive relatively homoge...
Evaporation from a Small Lake in the Continental Arctic using Multiple Methods
Evaporation Continental Arctic using Multiple Methods
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2009/10/23
Daily evaporation from a small lake in the continental Low Arctic of Canada
was examined using three independent experimental methods and a simplified
conlbination model. Mean daily lake evaporation...
Estimating Regional Precipitation Trends Comparison of two Methods
Regional Precipitation Trends Comparison two Methods
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2009/10/23
Two different methods werc applied to estimate long-term precipitation trends
representativ'e for regions in Norway. A new method, comparative trend analysis
(CTA), was applied on 142 homogeneous pr...
RAINFALL-RUNOFF SIMULATION IN AN EXPERIMENTAL BASIN USING GIS METHODS
rainfall-runoff travel time map steep watershed
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2009/10/12
A GIS-based rainfall-runoff model was developed to simulate the runoff discharge at the outlet of a 15.18 km2 gauged steep watershed that is located at the prefecture of Attica, Greece. The model抯 cor...
On the calculation of the topographic wetness index：evaluation of different methods based on field observations
topographic wetness index field observations
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2009/5/13
The topographic wetness index (TWI, ln(a/tanβ)), which combines local upslope contributing area and slope, is commonly used to quantify topographic control on hydrological processes. Methods of comput...
Evaluation of bias-correction methods for ensemble streamflow volume forecasts
streamflow volume forecasts bias-correction methods
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2009/5/7
Ensemble prediction systems are used operationally to make probabilistic streamflow forecasts for seasonal time scales. However, hydrological models used for ensemble streamflow prediction often have ...
Comparing sensitivity analysis methods to advance lumped watershed model identification and evaluation
regional sensitivity analysis parameter estimation software analysis of variance
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2009/5/7
This study seeks to identify sensitivity tools that will advance our understanding of lumped hydrologic models for the purposes of model improvement, calibration efficiency and improved measurement sc...
Utility of daily vs. monthly large-scale climate data：an intercomparison of two statistical downscaling methods
bias correction and spatial downscaling General Circulation Model climate data
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2009/4/29
Downscaling of climate model data is essential to local and regional impact analysis. We compare two methods of statistical downscaling to produce continuous, gridded time series of precipitation and ...