搜索结果: 1-13 共查到“水文测量 scale”相关记录13条 . 查询时间(0.137 秒)
Small-Scale Planktonic Structure: Persistence and Trophic Consequences
Persistence Trophic Consequences
2015/8/6
Most conventional sampling methods limit our ability to resolve planktonic distributions over vertical scales less than a few meters. Estimates of in situ biological rates also are limited by equipmen...
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...
Modelling field scale water partitioning using on-site observations in sub-Saharan rainfed agriculture
field scale water partitioning on-site observations sub-Saharan rainfed agriculture
2010/4/7
Smallholder rainfed farming systems generally realise sub-optimal crop yields which are largely attributed to dry spell occurrences during crop growth stages. However, through the introduction of appr...
Implementing small scale processes at the soil-plant interface – the role of root architectures for calculating root water uptake profiles
small scale processes soil-plant interface root architectures root water uptake profiles
2010/2/20
In this paper, we present a stand alone root water uptake model called aRoot, which calculates the sink term for any bulk soil water flow model taking into account water flow within and around a root ...
Chaos in rainfall:variability,temporal scale and zeros
Chaos in rainfall variability temporal scale zeros
2009/12/4
A recent study on rainfall observed at the Leaf River basin reports that the presence of a large number of zeros in the data significantly underestimates the correlation dimension. The present study a...
Effect of Scale on the Complexity of Snowmelt Systems
Effect of Scale Complexity Snowmelt Systems
2009/10/28
During the melt season of 1978, the nature of snow and ice storage, the energy
sources and the stream flow response were investigated at a site, a small-scale
and a meso-scale watershed in the Coast...
Simulation of Snowmelt in a Subarctic Spruce Woodland:Scale Considerations
Simulation of Snowmelt Subarctic Spruce Woodland Scale Considerations
2009/10/23
Subarctic woodlands comprise stands of spruce trees with varying degrees of
openness, giving rise to large contrasts in melt rates within the forest. The spatial
variability of the changing snow dep...
Estimation of Regional Parameters in a Macro Scale Hydrological Model
Regional Parameters Macro Scale Hydrological Model
2009/10/22
Macro-scale hydrological modelling implies a repeated application of a model
within an area using regional parameters. These parameters are based on climate
and landscape characteristics, and they a...
Transect Scale Solute Transport Measured by Time Domain Reflectometry
Transect Scale Solute Transport Time Domain Reflectometry
2009/10/22
Two quasi steady-state solute transport experiments were carried out in a loamy
sand under field conditions. The flux was 40 mm/d in experiment 1 and 18.7
mm/d in experiment 2. Both water content (8...
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...
Sensitivity of point scale surface runoff predictions to rainfall resolution
surface runoff predictions rainfall resolution
2009/5/7
This paper investigates the effects of using non-linear, high resolution rainfall, compared to time averaged rainfall on the triggering of hydrologic thresholds and therefore model predictions of infi...
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
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 ...