搜索结果: 1-15 共查到“水文测量 Catchment”相关记录17条 . 查询时间(0.109 秒)
Comparisons of local infiltration-excess, overland flow and associated erosion behaviour with river behaviour at the catchment scale
Hydrologic modeling overland flow erosion catchment scale
2015/8/6
Modeling overland flow and erosional behaviour is a very important scientific task today to prevent environmental impacts from human activities as well as physical disasters such as floods and deserti...
Ensemble modelling of nitrogen fluxes: data fusion for a Swedish meso-scale catchment
Ensemble modelling nitrogen fluxes data fusion
2010/12/22
Model predictions of biogeochemical fluxes at the landscape scale are highly uncertain, both with respect to stochastic (parameter) and structural uncertainty. In this study 5 different models (LASCAM...
Water and nutrient balances in a large tile-drained agricultural catchment: a distributed modeling study
Water nutrient tile-drained agricultural catchment
2010/12/22
This paper presents the development and implementation of a distributed model of coupled water nutrient processes, based on the representative elementary watershed (REW) approach, to the Upper Sangamo...
Modelling the inorganic nitrogen behaviour in a small Mediterranean forested catchment,Fuirosos (Catalonia)
inorganic nitrogen behaviour Mediterranean forested catchment Fuirosos
2010/2/20
The aim of this work was to couple a nitrogen (N) sub-model to already existent hydrological lumped (LU4-N) and semi-distributed (LU4-R-N and SD4-R-N) conceptual models, to improve our understanding o...
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 ...
The Importance of Refreezing on the Diurnal Snowmelt Cycle with Application to a Northern Swedish Catchment
Importance of Refreezing Diurnal Snowmelt Cycle Northern Swedish Catchment
2009/10/28
A method for including night-time refreezing of the top layer of a snowpack in
the degree-day method for computing daily snowmelt rates is presented. It is
found that during days of large diurnal te...
The Role of Soil Moisture in the Water-Balance of a Small-Clay Catchment,1967-75
Soil Moisture Water-Balance Small-Clay Catchment
2009/10/27
An eight year run of detailed soil moisture data has been incorporated into
simple water balance calculations in an attempt to estimate actual evapotranspiration.
The value of this data is shown whe...
Improving the Reliability of Catchment Mass Input:Output Estimations from Sub-Optimal Data in Areas of Urban Growth
Reliability Catchment Mass Input Output Estimations Sub-Optimal Data
2009/10/27
A new mass input:output formula is presented which makes full use of available
data which are commonly sub-optimal for mass input:output analysis.
Results indicate that some useful information on we...
This paper discusses results from a field study in a small East-Norwegian catchment.
The main object of the study was to separate the different runoff processes
in a small catchment. Direct measurem...
Estimation of Catchment Rainfall Uncertainty and its Influence on Runoff Prediction
Catchment Rainfall Uncertainty Influence Runoff Prediction
2009/10/27
Interpolation of spatially varying point precipitation depths introduces uncertainties
in the estimated mean areal precipitation (MAP). This paper describes
a geostatistical approach - the Kriging m...
Base Catchment Modeling in Urban Runoff Simulation
Base Catchment Modeling Urban Runoff Simulation
2009/10/26
The selection of numerical model and the transformation of catchment data
into 'input data' are two fundamental problems in urban runoff simulation.
They are discussed from a general point of view. ...
A numerical hydrological model has been developed for a 450 km2 Danish
catchment using comprehensive field data. The model integrates a simple
evapotranspiration model, a lumped flow model for a phr...
Investigating Catchment Hydrology and Low Flow Characteristics using GIS
Catchment Hydrology Low Flow Characteristics GIS
2009/10/23
The most frequent use of Geographic Information Systems (GIs) in hydrology
has been in inputloutput data handling for modeling purposes, as well as in the
derivation of flow direction, flow length a...
Digital Elevation Hydrological Modelling in a Small Catchment in South Australia
Digital Elevation Hydrological Modelling Small Catchment South Australia
2009/10/22
A rainfall runoff model based on a digital elevation model (DEM) was applied to a small catchment in Happy Valley, South Australia to predict catchment storm runoff. The DEM was used to partition the ...
COMPARISON OF LOCAL INFILTRATION EXCESS, OVERLAND FLOW AND ASSOCIATED EROSION BEHAVIOR WITH RIVER BEHAVIOR AT THE CATCHMENT SCALE
Data Based Mechanistic OVERLAND FLOW LOCAL INFILTRATION EXCESS CATCHMENT SCALE
2009/10/13
Modeling overland flow and erosion behavior is a very important scientific task today to prevent environmental impacts from human activities, as well as physical disasters such as floods and desertifi...