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Effect of land use-based surface roughness on hydrologic model output
land use-based surface roughness hydrologic model coefficient Manning
2015/8/14
The Manning’s roughness coefficient (n) is commonly used to represent surface roughness in lumped and distributed hydrologic models. Model parameter sensitivity studies identify runoff response to be ...
Hydrology and Water Balance of Devils Lake Basin: Part 2 - Grid-Based Spatial Surface Water Balance Modeling
water balance Devils Lake remote sensing Geographic Information System
2015/8/11
In this part of the study, grid-based spatial water balance approach was used to estimate the annual water balance of Devils Lake basin, hydrologically closed lake located in the Red River of the Nort...
Case Studies of Applying Urban Surface Data in Evaluating Stormwater Management Issues
Urban runoff impervious surfaces suspended solids
2015/1/7
Pollutant load estimation is often required to evaluate stormwater management issues associated with water quality and urban development. Land use (e.g. residential, commercial) is commonly employed a...
An inversion method based on multi-angular approaches for estimating bare soil surface parameters from RADARSAT-1
multi-angular approaches estimating bare soil surface parameters
2010/12/22
This paper focuses on inversion of these parameters using a multi-angular approach based on RADARSAT-1 data with incidence angles of 35° and 47° (in mode S3 and S7). This inversion was performed with ...
Searching for chaotic deterministic features in laboratory water surface waves
chaotic deterministic features water surface waves
2009/11/12
The dynamic evolution of laboratory water surface waves has been studied within the framework of dynamical systems with the aim to identify stochastic or deterministic nonlinear features. Three differ...
Characteristics of Three-layer Circulation and inverse Surface Salinity Gradients in Two Small Semi-enclosed Danish Embayments
Three-layer Circulation inverse Surface Salinity Gradients Semi-enclosed Danish Embayments
2009/10/28
Inverse surface salinity gradients were measured in two small Danish embayments.
Three possible mechanisms are taken into account. In Knebel Vig the
circulation and salinity distribution can be gene...
A Dimensionless Solution of Lag Time for Diverging Surface
Dimensionless Solution Lag Time Diverging Surface
2009/10/27
Using the kinematic wave theory, a dimensionless expression is obtained, and
solved numerically in order to estimate the lag time for diverging surfaces. The
findings show that the dimensionless lag...
MODELING THE EFFECT OF SOIL, VEGETATION TYPE AND DENSITY ON SOIL MOISTURE AND SURFACE ENERGY FLUX
Soil moisture SURFACE ENERGY FLUX atmospheric dynamics
2009/10/12
Soil moisture plays a crucial role in hydrological modeling and land-atmosphere energy balance by controlling the amount of evaporation and thermal heat exchange between the land surface and overlying...
Estimation of actual evapotranspiration of Mediterranean perennial crops by means of remote-sensing based surface energy balance models
evapotranspiration surface energy balance Mediterranean perennial crops
2009/7/22
Actual evapotranspiration from typical Mediterranean crops has been assessed in a Sicilian study area by using surface energy balance (SEB) and soil-water balance models. Both modelling approaches us...
Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site
thermodynamic soil soil temperature states vegetation parameterizations
2009/7/22
In this paper, we investigate the ability of the Noah Land Surface Model (LSM) to simulate temperature states in the soil profile and surface fluxes measured during a 7-day dry period at a micrometeor...
A Bayesian approach to estimate sensible and latent heat over vegetated land surface
latent heat land surface Bayesian
2009/7/22
Sensible and latent heat fluxes are often calculated from bulk transfer equations combined with the energy balance. For spatial estimates of these fluxes, a combination of remotely sensed and standard...
Some practical notes on the land surface modeling in the Tibetan Plateau
land surface models land-atmosphere interactions Tibetan Plateau
2009/7/22
The Tibetan Plateau is a key region of land-atmosphere interactions, as it provides an elevated heat source to the middle-troposphere. The Plateau surfaces are typically characterized by alpine meadow...
Estimating spatially distributed monthly evapotranspiration rates by linear transformations of MODIS daytime land surface temperature data
evapotranspiration rates land surface temperature
2009/7/22
Under simplifying conditions catchment-scale vapor pressure at the drying land surface can be calculated as a function of its watershed-representative temperature () by the wet-surface equation (W...
Spatial and temporal variation in pH, alkalinity and conductivity in surface runoff and groundwater for the Upper River Severn catchment
pH surface runoff alkalinity conductivity Upper River Severn catchment
2009/6/8
Measurements of pH, alkalinity and electrical conductivity are used to examine the extent of the spatial and temporal variation in stream and ground water chemistry for the Upper Severn catchment, Pl...
Temporal variations in near surface soil moisture at two contrasting sites in the Wye catchment and their control on storm streamflow generation
near surface soil moisture storm streamflow generation Wye catchment
2009/6/8
Near surface soil moisture measurements were recorded at hourly intervals at two contrasting sites within the Cyff sub-catchment using a prototype capacitance probe system. In a mire area within a val...
