搜索结果: 1-14 共查到“水文学 continuous”相关记录14条 . 查询时间(0.041 秒)
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 ...
Neural network rainfall-runoff forecasting based on continuous resampling
Neural network rainfall-runoff forecasting continuous resampling
2009/12/4
Most neural network hydrological modelling has used split-sample validation to ensure good out-of-sample generalisation and thus safeguard each potential solution against the danger of overfitting. Ho...
Response of Soil Moisture Change to Hydrological Processes in a Continuous Permafrost Environment
Soil Moisture Change Hydrological Processes Continuous Permafrost Environment
2009/10/26
The moisture content of the active layer at three sites in a continuous permafrost
area was measured using a twin-probe gamma density meter. The moisture
storage status at these sites were related t...
How crucial is it to account for the antecedent moisture conditions in flood forecasting? Comparison of event-based and continuous approaches on 178 catchments
soil moisture accounting flood forecasting moisture conditions
2009/7/22
This paper compares event-based and continuous hydrological modelling approaches for real-time forecasting of river flows. Both approaches are compared using a lumped hydrologic model (whose structure...
Continuous pH, electrical conductivity and temperature measurement at Plynlimon：towards an integrated, reliable and low maintenance instrument system
Water quality Continuous pH temperature measurement electrical conductivity
2009/6/8
Water quality data for the Nant Tanilwyth stream, Plynlimon (an acidic upland stream, the waters of which are of such low ionic strength that measurement is difficult), has been recorded using a new i...
Verification tools for probabilistic forecasts of continuous hydrological variables
hydrological variables Verification tools
2009/5/8
In the present paper we describe some methods for verifying and evaluating probabilistic forecasts of hydrological variables. We propose an extension to continuous-valued variables of a verification ...
Self-similar pattern formation and continuous mechanics of self-similar systems
crack growth formation starts isotropically oriented crack
2009/5/7
In many cases, the critical state of systems that reached the threshold is characterised by self-similar pattern formation. We produce an example of pattern formation of this kind – formation of self-...
Characterising phosphorus transfers in rural catchments using a continuous bank-side analyser
phosphorus transfers continuous bank-side rural catchments
2009/5/6
A six-month series of high-resolution synchronous stream discharge and total phosphorus (TP) concentration data is presented from a 5 km2 agricultural catchment in the Lough Neagh basin, Northern Irel...
Climatic and basin factors affecting the flood frequency curve: PART II – A full sensitivity analysis based on the continuous simulation approach combined with a factorial experimental design
Monte Carlo simulation factorial experimental design
2009/3/24
The sensitivity analysis described in Hashemi et al. (2000) is based on one-at-a-time perturbations to the model parameters. This type of analysis cannot highlight the presence of parameter interactio...
Climatic and basin factors affecting the flood frequency curve: PART I – A simple sensitivity analysis based on the continuous simulation approach
stochastic rainfall model rainfall runoff model
2009/3/24
Regionalized and at-site flood frequency curves exhibit considerable variability in their shapes, but the factors controlling the variability (other than sampling effects) are not well understood. An ...
Flood frequency estimation by continuous simulation under climate change (with uncertainty)
Climate change Floods Frequency TOPMODEL
2009/3/24
paper explores the potential for assessing the impacts of climate change upon flood frequency for the gauged, upland Wye catchment at Plynlimon, Wales, UK, while taking account of uncertainty in mode...
Flood frequency estimation by continuous simulation (with likelihood based uncertainty estimation)
Floods Frequency TOPMODEL
2009/3/24
A continuous simulation methodology, which incorporates the quantification of modelling uncertainties, is used for flood frequency estimation. The methodology utilises the rainfall-runoff model TOPMOD...
Cascade-based disaggregation of continuous rainfall time series: the influence of climate
Rainfall temporal disaggregation
2009/3/23
Rainfall data of high temporal resolution are required in a multitude of hydrological applications. In the present paper, a temporal rainfall disaggregation model is applied to convert daily time seri...
Continuous cover forestry: possible implications for surface water acidification in the UK uplands
acidification forestry continuous cover forestry clearfelling
2009/3/5
The effects of widespread conifer afforestation on the acidity of lakes and streams in the acid sensitive uplands of the UK has been researched extensively and has contributed to the development and i...