نتایج جستجو برای: streamflow

تعداد نتایج: 3914  

1997
Ashish Sharma David G. Tarboton

In this paper kernel estimates of the joint and conditional probability density functions are used to generate synthetic streamflow sequences. Streamflow is assumed to be a Markov process with time dependence characterized by a multivariate probability density function. Kernel methods are used to estimate this multivariate density function. Simulation proceeds by sequentially resampling from th...

Journal: :The Science of the total environment 2014
J I López-Moreno J Zabalza S M Vicente-Serrano J Revuelto M Gilaberte C Azorin-Molina E Morán-Tejeda J M García-Ruiz C Tague

Streamflows in a Mediterranean mountain basin in the central Spanish Pyrenees were projected under various climate and land use change scenarios. Streamflow series projected for 2021-2050 were used to simulate the management of the Yesa reservoir, which is critical to the downstream supply of irrigation and domestic water. Streamflows were simulated using the Regional Hydro-Ecologic Simulation ...

2014
R. Zeng

Groundwater-fed irrigation has altered surface and groundwater interactions in the Republic River basin (RRB) in the midwestern United States, where agriculture heavily depends on irrigation. The decreasing flow trend recorded at the RRB gauging station since the 1950s reflects the synthetical effect of dynamic interactions between surface water and groundwater systems, which has been enhanced ...

2013
E. A. Rosenberg E. A. Clark A. C. Steinemann

We assess the significance of groundwater storage for seasonal streamflow forecasts by evaluating its contribution to interannual streamflow anomalies in the 29 tributary sub-basins of the Colorado River. Monthly and annual changes in total basin storage are simulated by two implementations of the Variable Infiltration Capacity (VIC) macroscale hydrology model – the standard release of the mode...

Journal: :Ecological applications : a publication of the Ecological Society of America 2011
Chelcy R Ford Stephanie H Laseter Wayne T Swank James M Vose

Forested watersheds, an important provider of ecosystems services related to water supply, can have their structure, function, and resulting streamflow substantially altered by land use and land cover. Using a retrospective analysis and synthesis of long-term climate and streamfiow data (75 years) from six watersheds differing in management histories we explored whether streamflow responded dif...

2011
S. Simoni S. Padoan D. F. Nadeau M. Diebold A. Porporato G. Barrenetxea F. Ingelrest M. Vetterli M. B. Parlange

[1] A field measurement campaign was conducted from June to October 2009 in a 20 km catchment of the Swiss Alps with a wireless network of 12 weather stations and river discharge monitoring. The objective was to investigate the spatial variability of meteorological forcing and to assess its impact on streamflow generation. The analysis of the runoff dynamics highlighted the important contributi...

Journal: :Remote Sensing 2017
Fei Yuan Limin Zhang Khin Wah Wah Win Liliang Ren Chongxu Zhao Yonghua Zhu Shanhu Jiang Yi Liu

Satellite precipitation products from the Global Precipitation Measurement (GPM) mission and its predecessor the Tropical Rainfall Measuring Mission (TRMM) are a critical data source for hydrological applications in ungauged basins. This study conducted an initial and early evaluation of the performance of the Integrated Multi-satellite Retrievals for GPM (IMERG) final run and the TRMM Multi-sa...

2013
NARESH DEVINENI UPMANU LALL NEIL PEDERSON EDWARD COOK

A hierarchical Bayesian regression model is presented for reconstructing the average summer streamflow at five gauges in the Delaware River basin using eight regional tree-ring chronologies. The model provides estimates of the posterior probability distribution of each reconstructed streamflow series considering parameter uncertainty. The vectors of regression coefficients aremodeled as draws f...

2017
Mou Leong Tan Philip W. Gassman Arthur P. Cracknell Karim Abbaspour

Gridded climate products (GCPs) provide a potential source for representing weather in remote, poor quality or short-term observation regions. The accuracy of three long-term GCPs (Asian Precipitation—Highly-Resolved Observational Data Integration towards Evaluation of Water Resources: APHRODITE, Precipitation Estimation from Remotely Sensed Information using Artificial Neural Network-Climate D...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2013
Annika W Walters Krista K Bartz Michelle M McClure

The combined effects of water diversion and climate change are a major conservation challenge for freshwater ecosystems. In the Lemhi Basin, Idaho (U.S.A.), water diversion causes changes in streamflow, and climate change will further affect streamflow and temperature. Shifts in streamflow and temperature regimes can affect juvenile salmon growth, movement, and survival. We examined the potenti...

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