Water Resources Research

Cover image for Vol. 50 Issue 3

Early View (Online Version of Record published before inclusion in an issue)

Impact Factor: 3.149

ISI Journal Citation Reports © Ranking: 2012: 2/20 (Limnology); 3/80 (Water Resources); 35/210 (Environmental Sciences)

Online ISSN: 1944-7973

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  1. 1 - 33
  1. Research Articles

    1. Internal variability and model uncertainty components in future hydrometeorological projections: The Alpine Durance basin

      M. Lafaysse, B. Hingray, A. Mezghani, J. Gailhard and L. Terray

      Article first published online: 18 APR 2014 | DOI: 10.1002/2013WR014897

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      Key Point

      • The internal variability of climate scenarios is very high
  2. Technical Notes

    1. A machine learning approach for the prediction of settling velocity

      Evan B. Goldstein and Giovanni Coco

      Article first published online: 16 APR 2014 | DOI: 10.1002/2013WR015116

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      Key Points

      • New settling velocity predictor outperforms existing predictors
      • Predictor based on a novel approach for training data fed to genetic programming
      • More training data do not uniformly lead to better prediction
  3. Research Articles

    1. Regional flood frequency analysis using kernel-based fuzzy clustering approach

      Bidroha Basu and V. V. Srinivas

      Article first published online: 16 APR 2014 | DOI: 10.1002/2012WR012828

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      Key Points

      • Kernel-based regionalization approach is presented for flood frequency analysis
      • Kernel procedure to estimate flood quantiles at ungauged sites is developed
      • A set of fuzzy regions is delineated in Ohio, USA
    2. Climate change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers

      Barret L. Kurylyk, Kerry T. B. MacQuarrie and Clifford I. Voss

      Article first published online: 15 APR 2014 | DOI: 10.1002/2013WR014588

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      Key Points

      • Discrete groundwater discharge provides critical summer habitat for salmonids
      • Climate change may impact temperature/magnitude of aquifer discharge to rivers
      • These climate impacts are evaluated by linking surface and subsurface models
    3. Interannual variability of evapotranspiration and vegetation productivity

      Simone Fatichi and Valeriy Y. Ivanov

      Article first published online: 15 APR 2014 | DOI: 10.1002/2013WR015044

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      Key Points

      • Sensitivities are larger for changes in precipitation mean than variance
      • Sensitivities to changes in precipitation are larger regionally than locally
      • Short temporal scales are controlling interannual variability of ET and ANPP
    4. Multiple hydrological attractors under stochastic daily forcing: 2. Can multiple attractors emerge?

      T. J. Peterson, A. W. Western and R. M. Argent

      Article first published online: 14 APR 2014 | DOI: 10.1002/2012WR013004

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      Key Points

      • Stochastic daily forcing can switch a catchment to both attractors
      • Emergence of attractors differs significantly from the existence of attractors
      • Switching between attractor basins can be subtle and difficult to identify
    5. A modeling approach reveals differences in evapotranspiration and its partitioning in two semiarid ecosystems in Northwest Mexico

      Luis A. Méndez-Barroso, Enrique R. Vivoni, Agustin Robles-Morua, Giuseppe Mascaro, Enrico A. Yépez, Julio C. Rodríguez, Christopher J. Watts, Jaime Garatuza-Payán and Juan A. Saíz-Hernández

      Article first published online: 11 APR 2014 | DOI: 10.1002/2013WR014838

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      Key Points

      • Simulations with time-varying vegetation greening compare well to field data
      • A temporal switch in the dominant component of evapotranspiration was simulated
      • Intensive and extensive water use strategies are used in different ecosystems
    6. Joint estimation of soil moisture profile and hydraulic parameters by ground-penetrating radar data assimilation with maximum likelihood ensemble filter

      Anh Phuong Tran, Marnik Vanclooster, Milija Zupanski and Sébastien Lambot

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014583

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      Key Points

      • Propose a new scheme to directly assimilate GPR data
      • Effectiveness of data assimilation depends on soil type
      • Assimilation with GPR data outperforms that with surface soil moisture
  4. Technical Notes

    1. Altitudinal gradients, midwinter melt, and wind effects on snow accumulation in semiarid midlatitude Andes under La Niña conditions

      A. Ayala, J. McPhee and X. Vargas

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014960

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      Key Points

      • We analyze a distributed end-of-winter SWE data set along the semiarid Andes
      • During La Niña conditions, midwinter melt was relevant above 3000 m
      • Some measurements above 3000 m are explained by wind exposure differences
  5. Research Articles

    1. A modified weighted function method for parameter estimation of Pearson type three distribution

      Zhongmin Liang, Yiming Hu, Binquan Li and Zhongbo Yu

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR013653

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      Key Points

      • Modified weighted function method was introduced
      • Monte-Carlo experiment was carried out to simulate a large number of samples
      • New method was compared to original weight function and L-M methods
    2. Daily evaporation from drying soil: Universal parameterization with similarity

      Wilfried Brutsaert

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014872

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      Key Points

      • Daily evaporation from drying soil is like linear isothermal diffusion
      • The square root of inverse time proportionality is valid for short times
      • The exponential decay proportionality of the phenomenon is valid for long times
    3. Comparison of upscaled models for multistage mass discharge from DNAPL source zones

      A. Kokkinaki, C. J. Werth and B. E. Sleep

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014663

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      Key Points

      • A new upscaled relationship captures multistage DNAPL mass discharge
      • Changes in three macroscopic source zone metrics control effluent concentrations
      • Slope changes in concentration profiles were not related to ganglia depletion
    4. Effects of substrate on cracking patterns and dynamics in desiccating clay layers

      Keita F. DeCarlo and Nima Shokri

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014466

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      Key Points

      • Increasing crack density with decreasing substrate particle size
      • Smaller crack length with decreasing substrate particle size
      • Smaller crack length with decreasing substrate particle size
    5. Salinity effects on cracking morphology and dynamics in 3-D desiccating clays

      Keita F. DeCarlo and Nima Shokri

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014424

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      Key Points

      • Lower salt concentrations exhibit slower crack propagation rates
      • Higher salt concentrations induce more deeply penetrating cracks
      • Effect of NaCl on cracking dynamics in 3-D evaporating clay sample was delineated
    6. Modeling maximum daily temperature using a varying coefficient regression model

      Han Li, Xinwei Deng, Dong-Yun Kim and Eric P. Smith

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014243

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      Key Points

      • The relationship between water and air temperatures varies dynamically
      • A varying coefficient model is developed to model the dynamical relationship
      • Prediction with the model is better than commonly applied models
    7. Simulation of Earth textures by conditional image quilting

      K. Mahmud, G. Mariethoz, J. Caers, P. Tahmasebi and A. Baker

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR015069

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      Key Points

      • The first use of image quilting approach in geosciences
      • Adaptations for exact conditioning and 3-D simulation
      • A drastic acceleration compared to existing algorithms
    8. Reliable probabilistic forecasts from an ensemble reservoir inflow forecasting system

      Dominique R. Bourdin, Thomas N. Nipen and Roland B. Stull

      Article first published online: 10 APR 2014 | DOI: 10.1002/2014WR015462

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      Key Points

      • Shape of forecast PDF should match that of forecast errors to ensure reliability
      • Forecast errors and therefore the ideal probability model may vary seasonally
      • Probability calibration can introduce errors to already reliable forecasts
    9. Accelerated lake expansion on the Tibetan Plateau in the 2000s: Induced by glacial melting or other processes?

      Chunqiao Song, Bo Huang, Keith Richards, Linghong Ke and Vu Hien Phan

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014724

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      Key Points

      • Accelerated increases in the lake area and water level on the TP in the 2000s
      • The accelerated lake growth is close related to increasing precipitation
      • The glacier meltwater supply augments the growth rates of the glacier-fed lakes
    10. Transition probability-based stochastic geological modeling using airborne geophysical data and borehole data

      Xin He, Julian Koch, Torben O. Sonnenborg, Flemming Jørgensen, Cyril Schamper and Jens Christian Refsgaard

      Article first published online: 10 APR 2014 | DOI: 10.1002/2013WR014593

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      Key Points

      • The relation between resistivity data and geological units is largely uncertain
      • AEM data show advantage for transition probability in the horizontal direction
      • The selection of conditioning method is critical for geostatistical simulations
    11. Assessing the recent droughts in Southwestern China using satellite gravimetry

      Jingshi Tang, Haowen Cheng and Lin Liu

      Article first published online: 9 APR 2014 | DOI: 10.1002/2013WR014656

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      Key Points

      • GRACE is capable to capture recent heavy droughts in Southwestern China
      • The TWS is gradually decreasing in Southwestern China due to recent droughts
      • The TWS change is mainly controlled by rainfall and affected by global climate
    12. Multiple hydrological attractors under stochastic daily forcing: 1. Can multiple attractors exist?

      T. J. Peterson and A. W. Western

      Article first published online: 8 APR 2014 | DOI: 10.1002/2012WR013003

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      Key Points

      • Multiple hydrological attractors can exist under daily climate forcing
      • Daily forcing reduces the likelihood of multiple attractors
      • Monthly, or annual, forcing produces inaccurate estimates of attractors
    13. Dual role of salt marsh retreat: Long-term loss and short-term resilience

      G. Mariotti and J. Carr

      Article first published online: 4 APR 2014 | DOI: 10.1002/2013WR014676

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      Key Points

      • Marsh horizontal and vertical evolution responds differently to wave processes
      • Marsh retreat more likely than drowning for moderate sea level rise in the long term
      • Marsh retreat sustains marsh platform by supplying sediment in the short term
    14. On modeling the paleohydrologic response of closed-basin lakes to fluctuations in climate: Methods, applications, and implications

      Ganming Liu and Franklin W. Schwartz

      Article first published online: 4 APR 2014 | DOI: 10.1002/2013WR014107

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      Key Points

      • Develop a new approach to modeling lake paleohydrology based on tree ring PDSI
      • Provide new insight of how closed-basin lakes respond to climatic variability
      • Compare modeled lake paleohydrology to established paleolimnological records
    15. Root-zone soil moisture estimation using data-driven methods

      Kurt C. Kornelsen and Paulin Coulibaly

      Article first published online: 3 APR 2014 | DOI: 10.1002/2013WR014127

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      Key Points

      • Data-driven methods are effective for soil moisture extension
      • ANN can be good alternative methods to data assimilation for soil moisture estimation
      • ANN are a flexible tool for root-zone soil moisture estimation
  6. Technical Notes

    1. Cauchy data requirement of the inverse problem of the mean age equation

      Mohamed K. Nassar and Timothy R. Ginn

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR014674

      Key Points

      • The classical groundwater inverse requires Cauchy data
      • Inverting the mean age equation can circumvent the Cauchy data requirement
      • The mean age is valuable for calibration
  7. Research Articles

    1. Theory of transient streaming potentials in coupled unconfined aquifer-unsaturated zone flow to a well

      Bwalya Malama

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR014909

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      Key Points

      • Model transient streaming potentials in couple unsaturated-saturated zone flow
      • Comparison of model predicted and measured responses
      • Model used to estimate aquifer properties from transient SP data
    2. Interactions between flow structure and morphodynamic of bars in a channel expansion/contraction, Loire River, France

      Nicolas Claude, Stéphane Rodrigues, Vincent Bustillo, Jean-Gabriel Bréhéret, Pablo Tassi and Philippe Jugé

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR015182

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      Key Points

      • Field measurements of flow around bars in a channel expansion/contraction
      • Bars modify flow structure imposed by channel width variations
      • Flow structure defined by planform and bars affects in turn bars morphodynamic
    3. Contribution of impervious surfaces to urban evaporation

      P. Ramamurthy and E. Bou-Zeid

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR013909

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      Key Points

      • Evaporation from impervious surfaces is important in urban areas
      • New urban models can capture this evaporation quite accurately
      • Impervious evaporation results in scalar transport similarity after rainfall
    4. Hydrologic controls on basin-scale distribution of benthic invertebrates

      Serena Ceola, Enrico Bertuzzo, Gabriel Singer, Tom J. Battin, Alberto Montanari and Andrea Rinaldo

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR015112

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      Key Points

      • Hydrologic variability is a major control of invertebrate habitat suitability
      • New analytical basin-scale approach for pdfs of ecohydrological key features
      • Austrian river basin used for ecohydrological data-model comparison
    5. Role of extreme snowfall events in interannual variability of snowfall accumulation in the western United States

      A. C. Lute and J. T. Abatzoglou

      Article first published online: 2 APR 2014 | DOI: 10.1002/2013WR014465

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      Key Points

      • Extreme snowfall events contribute large portions of annual snowpack
      • Extreme snowfall events account for a majority of annual snowpack variability
      • Snowfall days and extremes vary with ENSO phase and shape snowpack anomalies
    6. A simple approach to the evaluation of the actual water renewal time of natural stratified lakes

      Marco Pilotti, Stefano Simoncelli and Giulia Valerio

      Article first published online: 1 APR 2014 | DOI: 10.1002/2013WR014471

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      Key Points

      • A model to estimate the water age distribution in natural stratified lakes is shown
      • The theoretical and actual water renewal time of a lake are compared
      • The interflow process influences the water renewal time in stratified lakes
    7. Machine learning and linear regression models to predict catchment-level base cation weathering rates across the southern Appalachian Mountain region, USA

      Nicholas A. Povak, Paul F. Hessburg, Todd C. McDonnell, Keith M. Reynolds, Timothy J. Sullivan, R. Brion Salter and Bernard J. Cosby

      Article first published online: 1 APR 2014 | DOI: 10.1002/2013WR014203

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      Key Points

      • Regression models used to extrapolate catchment-level BCw to the region
      • Random forest models reduced error rates by half compared to linear models
      • BCw rates influenced by lithology, soil, sulfur deposition, forest, and climate
    8. River-aquifer interactions in a semiarid environment investigated using point and reach measurements

      Andrew M. McCallum, Martin S. Andersen, Gabriel C. Rau, Joshua R. Larsen and R. Ian Acworth

      Article first published online: 1 APR 2014 | DOI: 10.1002/2012WR012922

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      Key Points

      • Losing riverbed fluxes under high flows and approximately neutral under low flows
      • Event driven riverbed fluxes dominate reach losses
      • Smaller events can have higher loss ratio than larger events

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