نتایج جستجو برای: hydrologists

تعداد نتایج: 296  

Journal: :Frontiers in water 2021

The hydrosocial (HS) and social-hydro (SH) frameworks each attempt to understand the complexity of water society, but they have emerged from historically disparate fields with distinctly different goals as well methodological epistemological standpoints. This paper encapsulates shared experiences two human geographers hydrologists studying hazard vulnerability in communities impacted by extreme...

Journal: :Applied Water Science 2022

Abstract Hydrologists rely extensively on anticipating river streamflow (SF) to monitor and regulate flood management water demand for people. Only a few simulation systems, where previous techniques failed anticipate SF data quickly, let alone cost-effectively, took long time execute. The bat algorithm (BA), meta-heuristic approach, was used in this study optimize the weights biases of artific...

2012
M. Latha M. Rajendran A. Murugappan

One of the major problems confronted by the hydrologists for many years is the prediction of runoff from a given basin for a known rainfall. In this situation, development of a rainfall runoff model is important in Veeranam tank catchment located at latitude 11° 15’00” and longitude 79° 30’00’ E in Cuddalore District of Tamilnadu, India. By considering the above said aspect the rainfall-runoff ...

2009
M. Shamsuddin

The rainfall-runoff relationship is one of the most complex hydrological phenomena. In recent years, hydrologists have successfully applied backpropagation neural network as a tool to model various nonlinear hydrological processes because of its ability to generalize patterns in imprecise or noisy and ambiguous input and output data sets. However, the backpropagation neural network convergence ...

Journal: :Environmental management 2010
Katharine R Stone David S Pilliod Kathleen A Dwire Charles C Rhoades Sherry P Wollrab Michael K Young

Two decades of uncharacteristically severe wildfires have caused government and private land managers to actively reduce hazardous fuels to lessen wildfire severity in western forests, including riparian areas. Because riparian fuel treatments are a fairly new management strategy, we set out to document their frequency and extent on federal lands in the western U.S. Seventy-four USDA Forest Ser...

2008
James C.Y. Guo

Hydrologic Engineering, April __________________________________________________________________________________ DESIGN RAINFALL CURVE James C.Y. Guo, Professor, Civil Engineering, U. of Colorado at Denver. __________________________________________________________________________ Abstract To design urban storm water infrastructures, hydrologists apply the SCS Type I and II 24-hr rainfall distr...

2016
Paul Muñoz Rolando Célleri Jan Feyen Ataur Rahman

A laser-optical disdrometer served as reference to assess the absolute percent bias of calculated rainfall intensity using the data of different-resolution tipping-bucket rain gauges classically applied by climatologists and hydrologists in the Andean region. Additionally, the impact of the calculation method (tip counting versus cubic spline interpolation) was examined. The combined effect was...

2012
Mukesh Kumar Rui Wang Timothy E. Link

[1] Many climate change forecasts project more extreme precipitation regimes (MEPR) in the future, characterized by more intense but less frequent storms. Plausible impacts of MEPR have drawn considerable attention from hydrologists and ecologists, but the hydrological impacts of MEPR in snowfall-dominated regions are less clear. Here we quantify the impacts of MEPR on the maximum seasonal snow...

2013
Grant Nicholas Laurel Saito Mark Weltz Mark Walker Christopher Daly Kelley Stewart Christo Morris NICHOLAS GRANT LAUREL SAITO MARK WELTZ MARK WALKER CHRISTOPHER DALY KELLEY STEWART CHRISTO MORRIS

In the arid western United States, wildlife water developments, or ‘‘guzzlers,’’ are important water sources for wildlife, and consist of impermeable roof structures designed to intercept precipitation and small tanks for storing water. Guzzlers are typically installed in remote midto high-elevation basins, where precipitation data are often scarce. In this study, small-game guzzlers were exami...

2002
Richard S. Lindzen

Most of the literate world today regards "global warming'' as both real and dangerous. Indeed, the diplomatic activity concerning warming might lead one to believe that it is the major crisis confronting mankind. The June 1992 Earth Summit in Rio de Janeiro, Brazil, focused on international agreements to deal with that threat, and the heads of state from dozens of countries attended. I must sta...

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