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Quantifying the effect of land use and land cover changes on green water and blue water in northern part of China
(Copernicus Publications on behalf of the European Geosciences Union, 2009-06-12)
Changes in land use and land cover (LULC) have been occurring at an accelerated pace in northern parts of China. These changes are significantly impacting the hydrology of these parts, such as Laohahe Catchment. The ...
Kinematic wave model of bed profiles in alluvial channels
(American Geophysical Union, 2006-06-21)
A mathematical model, based on the kinematic wave (KW) theory, is developed for describing the evolution and movement of bed profiles in alluvial channels. The model employs a functional relation between sediment transport ...
Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions
(American Geophysical Union, 2007-12-27)
Transient bed profiles in alluvial channels are generally modeled using diffusion (or dynamic) waves and assuming equilibrium between detachment and deposition rates. Equilibrium sediment transport can be considerably ...
A fractional dispersion model for overland solute transport
(American Geophysical Union, 2006-03-18)
Using the kinematic-wave overland flow equation and a fractional dispersion-advection equation, a process-oriented, physically-based model is developed for overland solute transport. Two scenarios, one consisting of downslope ...
Granulometric characterization of sediments transported by surface runoff generated by moving storms
(Copernicus Publications on behalf of the European Geosciences Union and the American Geophysical Union, 2008-12-16)
Due to the combined effect of wind and rain, the importance of storm movement to surface flow has long been recognized, at scales ranging from headwater scales to large basins. This study presents the results of laboratory ...
Downstream hydraulic geometry relations: 2. Calibration and testing
(American Geophysical Union, 2003-12-04)
Using 456 data sets under bank-full conditions obtained from various sources, the geometric relations, derived in part 1 [ Singh et al., 2003 ], are calibrated and verified using the split sampling approach. The calibration ...
Downstream hydraulic geometry relations: 1. Theoretical development
(American Geophysical Union, 2003-12-04)
In this study, it is hypothesized that (1) the spatial variation of the stream power of a channel for a given discharge is accomplished by the spatial variation in channel form (flow depth and channel width) and hydraulic ...
Hybrid fuzzy and optimal modeling for water quality evaluation
(American Geological Union, 2007-05-08)
Water quality evaluation entails both randomness and fuzziness. Two hybrid models are developed, based on the principle of maximum entropy (POME) and engineering fuzzy set theory (EFST). Generalized weighted distances are ...
Selling into Niche Markets
(Education Turnkey Systems, Inc., 2006-07)