Hydrological Processes (HYDROL PROCESS)

Publisher: Wiley

Journal description

Hydrological Processes is an international journal devoted to the publication of original scientific and technical papers in hydrology. The objective of these communications is to improve our understanding of hydrological processes. The scope of the journal encompasses disciplines focussing on the physical biogeochemical mathematical and methodological aspects of hydrological processes together with research on instrumentation and techniques. The journal also publishes several issues annually which relate to themes emergent from conferences hydrological science societies and key research topics identified by editorial board members. HP welcomes the submission of comment/reply on previously published papers. Such submissions should preferably be in the form of a short paper not exceeding 2000 words and relate to papers previously published in HP. All papers for HP should be prepared in accordance with the notes for contributors (http:// www.interscience.wiley.com/jpages/0885-6087/authors.html). Submit papers to the Editor-in-chief of HP or one of the two Associate Editors HPToday is devoted to research and sources of information which are considered to be deserving of rapid dissemination to hydrologists. As such it should be seen as a forum for rapid scientific communication and as a vehicle for up-to-date dialogues in hydrological sciences. HPToday includes invited commentaries letters to the editor refereed scientific briefings current awareness book reviews listing and reviews of internet sites software conference listings and industry updates. Submission information can be found in the HPToday section.

Current impact factor: 2.70

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 2.696
2012 Impact Factor 2.497
2011 Impact Factor 2.488
2010 Impact Factor 2.068
2009 Impact Factor 1.87
2008 Impact Factor 2.002
2007 Impact Factor 1.798
2006 Impact Factor 1.64
2005 Impact Factor 1.336
2004 Impact Factor 1.457
2003 Impact Factor 1.242
2002 Impact Factor 1.081
2001 Impact Factor 1.175
2000 Impact Factor 1.006
1999 Impact Factor 1.301
1998 Impact Factor 0.893
1997 Impact Factor 0.94
1996 Impact Factor 0.772
1995 Impact Factor 0.75
1994 Impact Factor 0.697
1993 Impact Factor 1.238
1992 Impact Factor 0.7

Impact factor over time

Impact factor

Additional details

5-year impact 2.81
Cited half-life 7.30
Immediacy index 0.39
Eigenfactor 0.03
Article influence 0.92
Website Hydrological Processes website
Other titles Hydrological processes (Online), Hydrological processes
ISSN 0885-6087
OCLC 43011525
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details


  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Some journals have separate policies, please check with each journal directly
    • On author's personal website, institutional repositories, arXiv, AgEcon, PhilPapers, PubMed Central, RePEc or Social Science Research Network
    • Author's pre-print may not be updated with Publisher's Version/PDF
    • Author's pre-print must acknowledge acceptance for publication
    • On a non-profit server
    • Publisher's version/PDF cannot be used
    • Publisher source must be acknowledged with citation
    • Must link to publisher version with set statement (see policy)
    • If OnlineOpen is available, BBSRC, EPSRC, MRC, NERC and STFC authors, may self-archive after 12 months
    • If OnlineOpen is available, AHRC and ESRC authors, may self-archive after 24 months
    • Publisher last contacted on 07/08/2014
    • This policy is an exception to the default policies of 'Wiley'
  • Classification
    ​ yellow

Publications in this journal

  • M.Hrachowitz, O.Fovet, L.Ruiz, H.H.G.Savenije
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    ABSTRACT: In spite of recent progress, hydrological processes underlying observed water quality response patterns, such as the emergence of near-chemostatic conditions and fractal 1/f^α scaling of stream chemistry, are not completely understood. Analysing hydrological and Cl- tracer data for two intensely managed, hydrologically contrasting yet biogeochemically similar catchments we tested if (1) a semi-distributed, conceptual model can simultaneously reproduce catchment scale hydrological and biogeochemical responses, (2) legacy stores, allowing for long-term storage of nutrient inputs can be identified and (3) a model can reproduce 1/fα scaling. Further we analysed (4) transit (TTD) and residence time distributions (RTD) and the associated response dynamics of legacy stores, to explore (5) what controls fluctuations in the scaling exponent α, thereby establishing a process based link between 1/f^α scaling, legacy stores, and age distributions. We found that the model could reproduce the variable hydrological and the stable Cl- responses. This was possible through Cl- accumulation in hydrologically passive legacy stores that are mainly associated with the groundwater store, where Cl- age is well above 2000 days, one magnitude above the Cl- age in other components, such as the root zone (~200d). The results indicate that legacy stores can cause stable nutrient concentrations in streams for several decades after the end of nutrient input. It was further found that the model could reproduce fractal scaling of stream Cl- in both catchments, with higher values of α for the catchment with the smaller legacy store and faster response (α = -0.88 vs. -1.29). Further analysing the spectral properties of model components, it was found that the parts of the system with less storage are characterized by higher values of α. This suggests a plausible processes-based link between the fluctuations of α, legacy stores and RTDs: the smaller the legacy store and the higher the flow contribution from faster responding system components, the higher α, suggesting that fractal scaling may potentially not be a universally emerging property of the biogeochemical response in streams.
    Hydrological Processes 05/2015; DOI:10.1002/hyp.10546
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    ABSTRACT: Watershed simulation models are used extensively to investigate hydrologic processes, landuse and climate change impacts, pollutant load assessments and best management practices (BMPs). Developing, calibrating and validating these models require a number of critical decisions that will influence the ability of the model to represent real world conditions. Understanding how these decisions influence model performance is crucial, especially when making science based policy decisions. This study used the Soil and Water Assessment Tool (SWAT) model in West Lake Erie Basin (WLEB) to examine the influence of several of these decisions on hydrological processes and streamflow simulations. Specifically, this study addressed the following objectives (1) Demonstrate the importance of considering intra-watershed processes during model development (2) Compare and evaluated spatial calibration versus calibration at outlet and (3) Evaluate parameter transfers across temporal and spatial scales. A coarser resolution (HUC-12) model and a finer resolution model (NHDPlus model) were used to support the objectives. Results showed that knowledge of watershed characteristics and intra-watershed processes are critical to produced accurate and realistic hydrologic simulations. The spatial calibration strategy produced better results compared to outlet calibration strategy and provided more confidence. Transferring parameter values across spatial scales (i.e. from coarser resolution model to finer resolution model) needs additional fine tuning to produce realistic results. Transferring parameters across temporal scales (i.e. from monthly to yearly and daily time-steps) performed well with a similar spatial resolution model. Furthermore, this study shows that relying solely on quantitative statistics without considering additional information can produce good but unrealistic simulations.
    Hydrological Processes 05/2015; DOI:10.1002/hyp.10536
  • Hydrological Processes 04/2015; DOI:10.1002/hyp.10492
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    ABSTRACT: To take into account the variability of the medium through which the groundwater flow takes place, we presented the groundwater flow equation within a confined aquifer with prolate coordinates. The new equation is a perturbed singular equation. The perturbed parameters is introduced and can be used as accurately replicate the variability of the aquifer from one point to another. When the perturbed parameter tends to zero we recover the Theis equation. We solved analytically and iteratively the new equation. We compared the obtained solution with experimental observed data together with existing solutions. The comparison shows that, the modified equation predicts more accurately the physical problem than the existing model
    Hydrological Processes 03/2015; DOI:10.1002/hyp.10476
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    ABSTRACT: Research on the water quality of urban runoff has so far focussed on the post-development phase of urban catchments, whereas water quality in developing areas under construction has remained less understood. The construction phase, however, may constitute a considerable source of diffuse pollution in urban areas. This study investigated mechanisms affecting water quality in residential areas during the construction and the post-construction phases. Water quality (suspended solids, total phosphorus, total nitrogen, chemical oxygen demand) and runoff were monitored over a period of five years in three catchments located in the city of Espoo in southern Finland. The catchments included an urbanising area under construction and low-density and high-density residential areas. The water quality was quantified in terms of event mean concentrations and loads. The key influential variables explaining water quality in a multiple linear regression analysis included hydrological variables (event volume and intensity), antecedent conditions and a variable describing the ongoing construction projects. Construction activities in the developing catchment had a profound impact on water quality. Inclusion of the variables describing activities, such as earth moving works, paving, house construction and temporary wastewater discharges, was necessary to explain water quality variations in the developing catchment. The importance of antecedent conditions as an explanatory variable depended on the site and pollutant in question.
    Hydrological Processes 03/2015; DOI:10.1002/hyp.10493
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    ABSTRACT: Glacier-fed river thermal regimes vary markedly in space and time; however, knowledge is limited of the fundamental processes controlling alpine stream temperature dynamics. To address the research gap, this study quantified heat exchanges at the water surface and bed of the Taillon glacier-fed stream, French Pyrénées. Hydro-meteorological observations were recorded at 15-min intervals across two summer melt seasons (2010 & 2011) and energy balance components were measured or estimated based on site-specific data. Averaged over both seasons, net radiation was the largest heat source (~80% of total flux); sensible heat (~13%) and friction (~3%) were sources also, while heat exchange across the channel - stream bed interface was negligible (<1%). Latent heat displayed distinct inter-annual variability and contributed 5% in 2010 compared to 0.03% in 2011. At the sub-seasonal scale, latent heat shifted from source to sink, possibly linked to the retreating valley snowline which changed temperature and humidity gradients. These findings represent the first, multi-year study of the heat exchange processes operating in a glacier-fed stream and, as well as providing fundamental process understanding, the research highlights the direct control antecedent (winter) conditions have on energy exchange and stream temperature during summer months. In particular the timing and volume of snowfall/snowmelt can drive thermal dynamics by: (1) altering the length of the stream network exposed to the atmosphere; and, (2) controlling the volume and timing of cold water advection downstream. Finally, this study highlights the need to develop long term hydro-meteorological monitoring stations to improve understanding of these highly dynamic, climatically sensitive systems. This article is protected by copyright. All rights reserved.
    Hydrological Processes 02/2015; DOI:10.1002/hyp.10433
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    ABSTRACT: The hydrology of boreal regions is strongly influenced by seasonal snow accumulation and melt. In this study, we compare simulations of snow water equivalent (SWE) and streamflow by using the hydrological model HYDROTEL with two contrasting approaches for snow modelling: a mixed degree-day/energy balance model (small number of inputs, but several calibration parameters needed) and the thermodynamic model CROCUS (large number of inputs, but no calibration parameter needed). The study site, in Northern Quebec, Canada was equipped with a ground-based gamma ray sensor measuring the SWE continuously for 5 years in a small forest clearing. The first simulation of CROCUS showed a tendency to underestimate SWE, attributable to bias in the meteorological inputs. We found that it was appropriate to use a threshold of 2 °C to separate rain and snow. We also applied a correction to account for snowfall undercatch by the precipitation gauge. After these modifications to the input dataset, we noticed that CROCUS clearly overestimated the SWE, likely as a result of not including loss in SWE because of blowing snow sublimation and relocation. To correct this, we included into CROCUS a simple parameterisation effective after a certain wind speed threshold, after which the thermodynamic model performed much better than the traditional mixed degree-day/energy balance model. HYDROTEL was then used to simulate streamflow with both snow models. With CROCUS, the main peak flow could be captured, but the second peak because of delayed snowmelt from forested areas could not be reproduced due to a lack of sub-canopy radiation data to feed CROCUS. Despite the relative homogeneity of the boreal landscape, data inputs from each land cover type are needed to generate satisfying simulation of the spring runoff.
    Hydrological Processes 12/2014; 28(25). DOI:10.1002/hyp.10091
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    ABSTRACT: The measured drainage fluxes through a layered volcanic vadose zone exhibited high spatial variability as a consequence of heterogeneous flow conditions. The drainage variability was quantified using close-proximity automated equilibrium tension lysimeters (AETLs), and resulted in high variability in the Br masses recovered from a conservative tracer experiment. The primary cause of the heterogeneous flow was attributed to textural changes occurring at the interface between volcanic layers, resulting in development of funnel-flow patterns, defined as heterogeneous flow, and were further enhanced by the existence of hydrophobic conditions. The Br recoveries in individual AETLs were used to determine the corresponding variable sizes of the surface areas contributing drainage to the lysimeters. The tracer experiment confirmed the existence of unsaturated lateral transport occurring at the interface of the coarse Taupo Ignimbrite material with the silty Palaeosol layer at 4.2 m depth. This study demonstrates that measurements of both flux and solute concentrations at multiple locations are essential when heterogeneous flow is suspected to be present, to be able to determine reliable estimates of contaminant leaching through the vadose zone at the plot scale.
    Hydrological Processes 12/2014; 28(25). DOI:10.1002/hyp.10099