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You searched for: Journal Advances in water resources Remove constraint Journal: Advances in water resources Publication Year 2016 Remove constraint Publication Year: 2016 Source 2016 v.94 Remove constraint Source: 2016 v.94
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1. A global survey on the seasonal variation of the marginal distribution of daily precipitation

Author:
Papalexiou, Simon Michael; Koutsoyiannis, Demetris
Source:
Advances in water resources 2016 v.94 pp. 131-145
ISSN:
0309-1708
Subject:
Weibull statistics; atmospheric precipitation; models; seasonal variation; surveys; water resources
Abstract:
... To characterize the seasonal variation of the marginal distribution of daily precipitation, it is important to find which statistical characteristics of daily precipitation actually vary the most from month-to-month and which could be regarded to be invariant. Relevant to the latter issue is the question whether there is a single model capable to describe effectively the nonzero daily precipitatio ...
DOI:
10.1016/j.advwatres.2016.05.005

2. A modelling investigation of solute transport in permeable porous media containing a discrete preferential flow feature

Author:
Sebben, Megan L.; Werner, Adrian D.
Source:
Advances in water resources 2016 v.94 pp. 307-317
ISSN:
0309-1708
Subject:
aquifers; mathematical models; permeability; porous media; preferential flow; rocks; solutes
Abstract:
... Preferential flow features (PFFs, e.g. fractures and faults) are common features in rocks that otherwise have significant matrix permeability. Despite this, few studies have explored the influence of a PFF on the distribution of solute plumes in permeable rock formations, and the current understanding of PFF effects on solute plumes is based almost entirely on low-permeability rock matrices. This ...
DOI:
10.1016/j.advwatres.2016.05.022

3. An enhanced temperature index model for debris-covered glaciers accounting for thickness effect

Author:
Carenzo, M.; Pellicciotti, F.; Mabillard, J.; Reid, T.; Brock, B.W.
Source:
Advances in water resources 2016 v.94 pp. 457-469
ISSN:
0309-1708
Subject:
climate; energy balance; glaciers; global warming; melting; rockfalls; simulation models; space and time; surface temperature; water resources; Himalayan region; Italy
Abstract:
... Debris-covered glaciers are increasingly studied because it is assumed that debris cover extent and thickness could increase in a warming climate, with more regular rockfalls from the surrounding slopes and more englacial melt-out material. Debris energy-balance models have been developed to account for the melt rate enhancement/reduction due to a thin/thick debris layer, respectively. However, su ...
DOI:
10.1016/j.advwatres.2016.05.001
PubMed:
28163355
PubMed Central:
PMC5270771

4. An experimental analysis of bed load transport in gravel-bed braided rivers with high grain Reynolds numbers

Author:
De Vincenzo, Annamaria; Brancati, Francesco; Pannone, Marilena
Source:
Advances in water resources 2016 v.94 pp. 160-173
ISSN:
0309-1708
Subject:
bedload; energy; equations; gravel; laboratory experimentation; regression analysis; rivers; streams
Abstract:
... Laboratory experiments were performed with nearly uniform fluvial gravel (D50=9mm, D10=5mm and D90=13mm) to analyse the relationship between stream power and bed load transport rate in gravel-bed braided rivers at high grain Reynolds numbers. The values of the unit-width dimensionless bed-load rate qb* and unit-width dimensionless stream power ω* were evaluated in equilibrium conditions based on t ...
DOI:
10.1016/j.advwatres.2016.05.007

5. A numerical procedure for geochemical compaction in the presence of discontinuous reactions

Author:
Agosti, Abramo; Giovanardi, Bianca; Formaggia, Luca; Scotti, Anna
Source:
Advances in water resources 2016 v.94 pp. 332-344
ISSN:
0309-1708
Subject:
chemical reactions; permeability; porosity; rocks; sediments; simulation models; water resources
Abstract:
... The process by which rocks are formed from the burial of a fresh sediment involves the coupled effects of mechanical compaction and geochemical reactions. Both of them affect the porosity and permeability of the rock and, in particular, geochemical reactions can significantly alter them, since dissolution and precipitation processes may cause a structural transformation of the solid matrix. Often, ...
DOI:
10.1016/j.advwatres.2016.06.001

6. A risk-based framework for water resource management under changing water availability, policy options, and irrigation expansion

Author:
Hassanzadeh, Elmira; Elshorbagy, Amin; Wheater, Howard; Gober, Patricia
Source:
Advances in water resources 2016 v.94 pp. 291-306
ISSN:
0309-1708
Subject:
algorithms; irrigation; issues and policy; models; probability distribution; risk; stream flow; uncertainty; water management; water resources; watersheds; Saskatchewan
Abstract:
... Long-term water resource management requires the capacity to evaluate alternative management options in the face of various sources of uncertainty in the future conditions of water resource systems. This study proposes a generic framework for determining the relative change in probabilistic characteristics of system performance as a result of changing water availability, policy options and irrigat ...
DOI:
10.1016/j.advwatres.2016.05.018

7. A risk-based interactive multi-stage stochastic programming approach for water resources planning under dual uncertainties

Author:
Wang, Y.Y.; Huang, G.H.; Wang, S.; Li, W.; Guan, P.B.
Source:
Advances in water resources 2016 v.94 pp. 217-230
ISSN:
0309-1708
Subject:
decision making; planning; resource allocation; risk; uncertainty; water allocation; water policy; water resources
Abstract:
... In this study, a risk-based interactive multi-stage stochastic programming (RIMSP) approach is proposed through incorporating the fractile criterion method and chance-constrained programming within a multi-stage decision-making framework. RIMSP is able to deal with dual uncertainties expressed as random boundary intervals that exist in the objective function and constraints. Moreover, RIMSP is cap ...
DOI:
10.1016/j.advwatres.2016.05.011

8. Calibrating Lattice Boltzmann flow simulations and estimating uncertainty in the permeability of complex porous media

Author:
Hosa, Aleksandra; Curtis, Andrew; Wood, Rachel
Source:
Advances in water resources 2016 v.94 pp. 60-74
ISSN:
0309-1708
Subject:
Markov chain; Monte Carlo method; computers; models; permeability; porosity; porous media; prediction; sandstone; uncertainty; water resources
Abstract:
... A common way to simulate fluid flow in porous media is to use Lattice Boltzmann (LB) methods. Permeability predictions from such flow simulations are controlled by parameters whose settings must be calibrated in order to produce realistic modelling results. Herein we focus on the simplest and most commonly used implementation of the LB method: the single-relaxation-time BGK model. A key parameter ...
DOI:
10.1016/j.advwatres.2016.04.020

9. Climate change and large-scale land acquisitions in Africa: Quantifying the future impact on acquired water resources

Author:
Chiarelli, Davide Danilo; Davis, Kyle Frankel; Rulli, Maria Cristina; D'Odorico, Paolo
Source:
Advances in water resources 2016 v.94 pp. 231-237
ISSN:
0309-1708
Subject:
agricultural land; biofuels; carbon dioxide; climate; climate change; crop yield; diet; energy crops; freshwater; globalization; irrigation water; leasing; livelihood; temperature; water footprint; water resources; water stress; Africa
Abstract:
... Pressure on agricultural land has markedly increased since the start of the century, driven by demographic growth, changes in diet, increasing biofuel demand, and globalization. To better ensure access to adequate land and water resources, many investors and countries began leasing large areas of agricultural land in the global South, a phenomenon often termed “large-scale land acquisition” (LSLA) ...
DOI:
10.1016/j.advwatres.2016.05.016

10. Combined assimilation of streamflow and satellite soil moisture with the particle filter and geostatistical modeling

Author:
Yan, Hongxiang; Moradkhani, Hamid
Source:
Advances in water resources 2016 v.94 pp. 364-378
ISSN:
0309-1708
Subject:
anthropogenic activities; gauges; geostatistics; hydrologic models; prediction; remote sensing; rivers; satellites; soil water; stream flow; watersheds; Arizona
Abstract:
... Assimilation of satellite soil moisture and streamflow data into a distributed hydrologic model has received increasing attention over the past few years. This study provides a detailed analysis of the joint and separate assimilation of streamflow and Advanced Scatterometer (ASCAT) surface soil moisture into a distributed Sacramento Soil Moisture Accounting (SAC-SMA) model, with the use of recentl ...
DOI:
10.1016/j.advwatres.2016.06.002

11. Concentration statistics of solute transport for the near field zone of an estuary

Author:
Galesic, Morena; Andricevic, Roko; Gotovac, Hrvoje; Srzic, Veljko
Source:
Advances in water resources 2016 v.94 pp. 424-440
ISSN:
0309-1708
Subject:
equations; estuaries; eutrophication; mathematical models; mixing; pollution; probability distribution; risk; rivers; solutes; stream flow; tides; water currents; water quality; wind; Croatia
Abstract:
... Rivers are considered as one of the most influential hydrological pathways for the waterborne transport and therefore estuaries are critical areas for a pollution hazard that might lead to eutrophication and general water quality deterioration. This paper is investigating the near field mixing in the estuary as the result of a combination of small scale turbulent diffusion and a larger scale varia ...
DOI:
10.1016/j.advwatres.2016.06.009

12. Detecting non-stationary hydrologic model parameters in a paired catchment system using data assimilation

Author:
Pathiraja, S.; Marshall, L.; Sharma, A.; Moradkhani, H.
Source:
Advances in water resources 2016 v.94 pp. 103-119
ISSN:
0309-1708
Subject:
humans; hydrologic models; land cover; land use change; prediction; soil water; stream flow; temporal variation; water resources; watersheds; Western Australia
Abstract:
... Non-stationarity represents one of the major challenges facing hydrologists. There exists a need to develop modelling systems that are capable of accounting for potential catchment changes, in order to provide useful predictions for the future. Such changes may be due to climatic temporal variations or human induced changes to land cover. Extensive research has been undertaken on the impacts of la ...
DOI:
10.1016/j.advwatres.2016.04.021

13. Development and evaluation of a framework for global flood hazard mapping

Author:
Dottori, Francesco; Salamon, Peter; Bianchi, Alessandra; Alfieri, Lorenzo; Hirpa, Feyera Aga; Feyen, Luc
Source:
Advances in water resources 2016 v.94 pp. 87-102
ISSN:
0309-1708
Subject:
data collection; developing countries; hydrodynamics; models; remote sensing; rivers; stream flow; watersheds
Abstract:
... Nowadays, the development of high-resolution flood hazard models have become feasible at continental and global scale, and their application in developing countries and data-scarce regions can be extremely helpful to increase preparedness of population and reduce catastrophic impacts.The present work describes the development of a novel procedure for global flood hazard mapping, based on the most ...
DOI:
10.1016/j.advwatres.2016.05.002

14. Direct measurement of relative permeability in rocks from unsteady-state saturation profiles

Author:
Kianinejad, Amir; Chen, Xiongyu; DiCarlo, David A.
Source:
Advances in water resources 2016 v.94 pp. 1-10
ISSN:
0309-1708
Subject:
drainage; gravity; permeability; sandstone; water resources
Abstract:
... We develop a method to measure liquid relative permeability in rocks directly from transient in situ saturation profiles during gravity drainage experiments. Previously, similar methods have been used for sandpacks; here, this method is extended to rocks by applying a slight overpressure of gas at the inlet. Relative permeabilities are obtained in a 60cm long vertical Berea sandstone core during g ...
DOI:
10.1016/j.advwatres.2016.04.018

15. Estimation of 3-D pore network coordination number of rocks from watershed segmentation of a single 2-D image

Author:
Rabbani, Arash; Ayatollahi, Shahab; Kharrat, Riyaz; Dashti, Nader
Source:
Advances in water resources 2016 v.94 pp. 264-277
ISSN:
0309-1708
Subject:
algorithms; models; permeability; prediction; rocks; statistical analysis; water resources; watersheds
Abstract:
... In this study, we have utilized 3-D micro-tomography images of real and synthetic rocks to introduce two mathematical correlations which estimate the distribution parameters of 3-D coordination number using a single 2-D cross-sectional image. By applying a watershed segmentation algorithm, it is found that the distribution of 3-D coordination number is acceptably predictable by statistical analysi ...
DOI:
10.1016/j.advwatres.2016.05.020

16. Evaluating the effect of internal aperture variability on transport in kilometer scale discrete fracture networks

Author:
Makedonska, Nataliia; Hyman, Jeffrey D.; Karra, Satish; Painter, Scott L.; Gable, Carl W.; Viswanathan, Hari S.
Source:
Advances in water resources 2016 v.94 pp. 486-497
ISSN:
0309-1708
Subject:
equations; models; rocks; water flow; water resources
Abstract:
... The apertures of natural fractures in fractured rock are highly heterogeneous. However, in-fracture aperture variability is often neglected in flow and transport modeling and individual fractures are assumed to have uniform aperture distribution. The relative importance of in-fracture variability in flow and transport modeling within kilometer-scale field–scale fracture networks has been under a m ...
DOI:
10.1016/j.advwatres.2016.06.010

17. Exploring hydro-meteorological drought patterns over the Greater Horn of Africa (1979–2014) using remote sensing and reanalysis products

Author:
Awange, J.L.; Khandu,; Schumacher, M.; Forootan, E.; Heck, B.
Source:
Advances in water resources 2016 v.94 pp. 45-59
ISSN:
0309-1708
Subject:
El Nino; basins; climate; climatology; drought; gravity; hydrometeorology; rain; remote sensing; water resources; Ethiopia; Indian Ocean; Lake Victoria; Sudan; Tanzania
Abstract:
... Spatio-temporal patterns of hydrological droughts over the Greater Horn of Africa (GHA) are explored based on total water storage (TWS) changes derived from time-variable gravity field solutions of Gravity Recovery And Climate Experiment (GRACE, 2002–2014), together with those simulated by Modern Retrospective Analysis for Research Application (MERRA, 1980–2014). These hydrological extremes are th ...
DOI:
10.1016/j.advwatres.2016.04.005

18. Generalized semi-analytical solutions to multispecies transport equation coupled with sequential first-order reaction network with spatially or temporally variable transport and decay coefficients

Author:
Suk, Heejun
Source:
Advances in water resources 2016 v.94 pp. 412-423
ISSN:
0309-1708
Subject:
equations; microorganisms; models; solutes; space and time; subsurface flow; water resources
Abstract:
... This paper presents a semi-analytical procedure for solving coupled the multispecies reactive solute transport equations, with a sequential first-order reaction network on spatially or temporally varying flow velocities and dispersion coefficients involving distinct retardation factors. This proposed approach was developed to overcome the limitation reported by Suk (2013) regarding the identical r ...
DOI:
10.1016/j.advwatres.2016.06.004

19. Hybrid approach in statistical bias correction of projected precipitation for the frequency analysis of extreme events

Author:
Um, Myoung-Jin; Kim, Hanbeen; Heo, Jun-Haeng
Source:
Advances in water resources 2016 v.94 pp. 278-290
ISSN:
0309-1708
Subject:
General Circulation Models; air temperature; atmospheric precipitation; bias; climate change; climatic factors; hydrology; meteorological data; prediction; statistical analysis; water resources
Abstract:
... A general circulation model (GCM) can be applied to project future climate factors, such as precipitation and atmospheric temperature, to study hydrological and environmental climate change. Although many improvements in GCMs have been proposed recently, projected climate data are still required to be corrected for the biases in generating data before applying the model to practical applications. ...
DOI:
10.1016/j.advwatres.2016.05.021

20. Hydroelectric power generation in an Alpine basin: future water-energy scenarios in a run-of-the-river plant

Author:
Bongio, Marco; Avanzi, Francesco; De Michele, Carlo
Source:
Advances in water resources 2016 v.94 pp. 318-331
ISSN:
0309-1708
Subject:
Monte Carlo method; basins; climate; energy; glaciers; hydroelectric power; hydrologic models; inventories; power generation; stream flow; temperature; uncertainty; water resources
Abstract:
... We investigate scenarios of hydroelectric power generation for an Alpine run-of-the-river plant in 2050. To this end, we include a conversion from streamflow to energy in a hydrological model of the basin, and we introduce a set of benchmark climate scenarios to evaluate expected future production. These are a “future-like-present” scenario assuming future precipitation and temperature inputs to b ...
DOI:
10.1016/j.advwatres.2016.05.017