Browsing by Author "Singh, V. P."

Now showing items 1-20 of 23

    • Case Study: Influence of Morphological Changes on Flooding in Jingjiang River 
      Fan, Ping; Li, J. C.; Liu, Q. Q.; Singh, V. P. (2008-12-01)
      The middle reach of the Yangtze River, customarily called the Jingjiang River, together with its diversion channels and Dongting Lake, form a large complicated drainage system. In the last five decades, significant ...
    • Derivation of Furrow Geometry Using Entropy Theory 
      Singh, V. P. (American Society of Agricultural and Biological Engineers, 2012)
      The instantaneous unit hydrograph (IUH) is a commonly used method for computing surface runoff hydrographs from small watersheds. Assuming travel time as a random variable, a general equation for IUH is derived using the ...
    • Derivation of Rating Curves Using Entropy Theory 
      Singh, V. P. (American Society of Agricultural and Biological Engineers, 2010)
      Using the entropy theory, this study derives the stage‐discharge relation, often called the rating curve, which is based on two simple constraints: (1) the total probability and (2) the mean logarithmic discharge. Parameters ...
    • Determination of Critical Head in Soil Piping 
      Adrian, D. D.; Ojha, C. S. P.; Singh, V. P. (2003-07-01)
      One of the main mechanisms of failure of levees is a phenomenon called ‘‘piping,’’ which generally begins with the formation of a sand boil at the leeward side of the levee, and has been frequently observed to proceed ...
    • Dimensionless analytical solutions for dam-breach erosion 
      Quiroga, C. A.; Singh, V. P. (2010-01-19)
      The earthen dam breach erosion is analyzed using dimensionless analytical solutions, with rectangular and triangular representations for the breach section. Data for the historical failures of South Fork and Teton Dams are ...
    • Dispersion Model for Varying Vertical Shear in Vegetated Channels 
      Patil, S.; Singh, V. P. (2011-10-01)
      A dispersion model for a wide range of depthwise vertical shear is derived by using perturbation analysis and power (m) law velocity profile. For m = 1, the velocity profile provides linear shear, whereas m > 1 provides ...
    • Entropy-Copula Method for Single-Site Monthly Streamflow Simulation 
      Hao, Z.; Singh, V. P. (American Geophysical Union, 2012-06-13)
      An entropy-copula method is proposed for single-site monthly streamflow simulation. In this method, the joint distribution of adjacent monthly streamflows is constructed using the copula method, whereas the marginal ...
    • Evaluation of Models of Border Irrigation Recession 
      Ram, R. S.; Singh, V. P. (The British Society for Research in Agricultural Engineering, 1982)
      Recession characteristics play an important role in the design of border irrigation systems. This is particularly true of those borders which have closed downstream ends where surface storage is large even after the cessation ...
    • Forecasting Spatiotemproal Water Levels of Tabriz Aquifer 
      Nourani, V.; Nadiri, A. O.; Moghaddam, A. A.; Singh, V. P. (Academic Journals Inc., 2008)
      This study evaluates the feasibility of using artificial neural networks (ANNs) methodology for estimating the groundwork level in some piezometers implanted in complex aquifer of Northwestern Iran. This aquifer is the ...
    • Granulometric characterization of sediments transported by surface runoff generated by moving storms 
      de Lima, J. L. M. P.; Souza, C. C. S.; Singh, V. P. (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 ...
    • Granulometric characterization of sediments transported by surface runoff generated by moving storms 
      P. de Lima, J. L. M.; Singh, V. P.; Souza, C. S. (Copernicus, 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 ...
    • Hydrologic system complexity and nonlinear dynamic concepts for a catchment classification framework 
      Sivakumar, B.; Singh, V. P. (Hydrology and Earth System Sciences, 2012)
    • Impact of Data Length on the Uncertainty of Hydrological Copula Modeling 
      Chen, Y. F.; Chen, X.; Singh, V. P.; Tong, X.; Wang, D.; Wu, J. C. (2014-08-06)
      Three Archimedean copulas were employed to model annual maximum flood peak data of different lengths. Estimation methods based on ranks were employed for parameter estimation. Marginals were modeled with the generalized ...
    • Impact of Data Length on the Uncertainty of Hydrological Copula Modeling 
      Wang, D.; Singh, V. P.; Wu, J. C.; Chen, X.; Chen, Y. F.; Tong, X. (ASCE-AMER SOC CIVIL ENGINEERS, 2015-04)
      Three Archimedean copulas were employed to model annual maximum flood peak data of different lengths. Estimation methods based on ranks were employed for parameter estimation. Marginals were modeled with the generalized ...
    • An IUH Equation Based on Entropy Theory 
      Singh, V. P. (American Society of Agricultural and Biological Engineers, 2011)
      The instantaneous unit hydrograph (IUH) is a commonly used method for computing surface runoff hydrographs from small watersheds. Assuming travel time as a random variable, a general equation for IUH is derived using the ...
    • Longitudinal Dispersion Coefficient in Single-Channel Streams 
      Adrian, D.D.; Bengtsson, L.; Deng, Z. Q.; Singh, V. P. (2002-10-01)
      Using a new channel shape equation for straight channels and a more versatile channel shape or local flow depth equation for natural streams a method is developed for prediction of the longitudinal dispersion coefficient ...
    • Modeling multisite streamflow dependence with maximum entropy copula 
      Hao, Z.; Singh, V. P. (American Geophysical Union, 2013)
      Synthetic streamflows at different sites in a river basin are needed for planning, operation, and management of water resources projects. Modeling the temporal and spatial dependence structure of monthly streamflow at ...
    • Quantifying the effect of land use and land cover changes on green water and blue water in northern part of China 
      Liu, X.; Ren, L.; Yuan, F.; Singh, V. P.; Fang, X.; Yu, Z.; Zhang, W. (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 ...
    • Scale model for the confluent area of debris flow and main river: a case study of the Wenjia Gully 
      Zhang, J.; Guo, Z. X.; Cao, S. Y.; Singh, V. P. (Natural Hazards and Earth System Sciences, 2013)
    • Solution of Three-Constraint Entropy-Based Velocity Distribution 
      Barbe, D. E.; Cruise, J. F.; Singh, V. P. (1991-10)
      A two-dimensional velocity profile based upon the principle of maximum entropy (POME) for wide open channel flows is presented. The derivation is based on the conservation of mass and momentum. The resulting profile involves ...