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Water Resources Research

Cover image for Vol. 48 Issue 7

July 2012

Volume 48, Issue 7

  1. Commentaries

    1. Top of page
    2. Commentaries
    3. Data and Analysis Notes
    4. Regular Article
    5. Reviews
    6. Technical Note
    1. You have free access to this content
      Reply to comment by A. Fiori et al. on “Comparison of Fickian and temporally nonlocal transport theories over many scales in an exhaustively sampled sandstone slab”

      David A. Benson, Adam Atchley, Reed M. Maxwell, Eileen Poeter, Hamed Ibrahim, Arianne Dean, Jordan Revielle, Mine Dogan and Elizabeth Major

      Article first published online: 21 JUL 2012 | DOI: 10.1029/2012WR012004

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  2. Data and Analysis Notes

    1. Top of page
    2. Commentaries
    3. Data and Analysis Notes
    4. Regular Article
    5. Reviews
    6. Technical Note
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      The Murrumbidgee soil moisture monitoring network data set

      A. B. Smith, J. P. Walker, A. W. Western, R. I. Young, K. M. Ellett, R. C. Pipunic, R. B. Grayson, L. Siriwardena, F. H. S. Chiew and H. Richter

      Article first published online: 17 JUL 2012 | DOI: 10.1029/2012WR011976

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      Key Points

      • Soil moisture data set from 82,000 square km Murrumbidgee Catchment, Australia
      • Data from 2001 and ongoing at 38 soil moisture monitoring sites
      • Sub-hourly data at 4 depths for each site available at http://www.oznet.org.au
  3. Regular Article

    1. Top of page
    2. Commentaries
    3. Data and Analysis Notes
    4. Regular Article
    5. Reviews
    6. Technical Note
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      Drought indicators based on model-assimilated Gravity Recovery and Climate Experiment (GRACE) terrestrial water storage observations

      Rasmus Houborg, Matthew Rodell, Bailing Li, Rolf Reichle and Benjamin F. Zaitchik

      Article first published online: 28 JUL 2012 | DOI: 10.1029/2011WR011291

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      Key Points

      • GRACE has the unique ability to sense water stored at all levels
      • Data assimilation is required to realize the full potential of GRACE
      • Highlights the potential value of GRACE data for drought detection purposes
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      Darcy-scale modeling of microbially induced carbonate mineral precipitation in sand columns

      A. Ebigbo, A. Phillips, R. Gerlach, R. Helmig, A. B. Cunningham, H. Class and L. H. Spangler

      Article first published online: 28 JUL 2012 | DOI: 10.1029/2011WR011714

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      Key Points

      • Development of a model for MICP
      • Bench-scale experiments
      • Validation with experiments
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      An extension of the capillary and thin film flow model for predicting the hydraulic conductivity of air-free frozen porous media

      Marc Lebeau and Jean-Marie Konrad

      Article first published online: 27 JUL 2012 | DOI: 10.1029/2012WR011916

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      Key Points

      • A hydraulic conductivity model for air-free frozen porous media is developed
      • A method for scaling water retention and water freezing functions is proposed
      • Thin liquid interlayers are vital in explaining flow at colder temperatures
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      Influence of permafrost distribution on groundwater flow in the context of climate-driven permafrost thaw: Example from Yukon Flats Basin, Alaska, United States

      Michelle A. Walvoord, Clifford I. Voss and Tristan P. Wellman

      Article first published online: 27 JUL 2012 | DOI: 10.1029/2011WR011595

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      Key Points

      • Permafrost exerts a strong control on overall regional gw fluxes
      • Increased baseflow expected from permafrost degradation
      • Yukon Flats positioned for major hydrologic change with minor added pmf thaw
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      Dust radiative forcing in snow of the Upper Colorado River Basin: 2. Interannual variability in radiative forcing and snowmelt rates

      S. McKenzie Skiles, Thomas H. Painter, Jeffrey S. Deems, Ann C. Bryant and Christopher C. Landry

      Article first published online: 26 JUL 2012 | DOI: 10.1029/2012WR011986

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      Key Points

      • Dust in snow in the Colorado River Basin absorbs extra 31 to 75 W m-2 in spring
      • This dust radiative forcing shortens snow cover duration by 21 to 51 days
      • Melt season temperature increases of 2 to 4 deg C shorten snow cover 5-18 days
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      Dust radiative forcing in snow of the Upper Colorado River Basin: 1. A 6 year record of energy balance, radiation, and dust concentrations

      Thomas H. Painter, S. McKenzie Skiles, Jeffrey S. Deems, Ann C. Bryant and Christopher C. Landry

      Article first published online: 26 JUL 2012 | DOI: 10.1029/2012WR011985

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      Key Points

      • Radiative forcing by dust in snow is not captured by conventional measurements
      • We present a 6 year record of energy balance and detailed radiation measurements
      • These measurements give unique understanding of snowmelt in Upper Colorado River
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      Ensemble hydrological prediction-based real-time optimization of a multiobjective reservoir during flood season in a semiarid basin with global numerical weather predictions

      Fuxing Wang, Lei Wang, Huicheng Zhou, Oliver C. Saavedra Valeriano, Toshio Koike and Wenlong Li

      Article first published online: 25 JUL 2012 | DOI: 10.1029/2011WR011366

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      Key Points

      • The precipitation forecast errors are considered through ensemble approach
      • The real-time ensemble predictions are combined with reservoir operation
      • The system is feasible for practical operation
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      Predicting the accumulation of mercury-contaminated sediment on riverbanks—An analytical approach

      Jim Pizzuto

      Article first published online: 24 JUL 2012 | DOI: 10.1029/2012WR011906

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      Key Points

      • Analytical model quantifies 78 years of mercury-contaminated flood sedimentation
      • Mercury inventories reflect flood inundation, vegetation, and sedimentation
      • Mercury inventories can be used to quantify sediment accumulation
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      Regional blending of fresh and saline irrigation water: Is it efficient?

      Iddo Kan and Mickey Rapaport-Rom

      Article first published online: 20 JUL 2012 | DOI: 10.1029/2011WR011285

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      Key Points

      • Blending may be optimal in regional water networks with uniform salinity
      • Uniform-salinity networks do not support fresh water saving regardless blending
      • Uniform-salinity networks maybe superior to farmers under endogenous prices
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      Groundwater levels and teleconnection patterns in the Canadian Prairies

      Cesar Perez-Valdivia, Dave Sauchyn and Jessica Vanstone

      Article first published online: 19 JUL 2012 | DOI: 10.1029/2011WR010930

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      Key Points

      • Natural variability in groundwater systems
      • The effect of SST anomalies on groundwater levels across the Canadian Prairies
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      The Green–Ampt limit with reference to infiltration coefficients

      D. Triadis and P. Broadbridge

      Article first published online: 18 JUL 2012 | DOI: 10.1029/2011WR011747

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      Key Points

      • Soil infiltration behaviour in the Green–Ampt nonlinear limit is corrected
      • Previous solution methods are clarified and extended
      • A more realistic delta function soil infiltration model is presented
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      Uncertainty assessment and implications for data acquisition in support of integrated hydrologic models

      Philip Brunner, J. Doherty and Craig T. Simmons

      Article first published online: 17 JUL 2012 | DOI: 10.1029/2011WR011342

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      Key Points

      • Observations of heads can reliably support future water table predictions
      • Observations of heads do not allow to estimate individual parameters well
      • The worth of ET and saturation observations changes with depth to groundwater
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      Modeling potential hydrochemical responses to climate change and increasing CO2at the Hubbard Brook Experimental Forest using a dynamic biogeochemical model (PnET-BGC)

      Afshin Pourmokhtarian, Charles T. Driscoll, John L. Campbell and Katharine Hayhoe

      Article first published online: 17 JUL 2012 | DOI: 10.1029/2011WR011228

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      Key Points

      • There will be substantial shifts in annual and seasonal hydrologic patterns
      • The predicted average annual runoff decreased under climate change scenarios
      • Elevated temperatures increased N mineralization and nitrification
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      Capillary trapping of buoyant particles within regions of emergent vegetation

      Paolo Peruzzo, Andrea Defina and Heidi Nepf

      Article first published online: 14 JUL 2012 | DOI: 10.1029/2012WR011944

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      Key Points

      • Capillarity increases the cylinder interaction probability with buoyant particle
      • The capture probability of a cylinder decays exponentially with flow
      • The model can be applied to plant having complex morphology
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      Mass conservative three-dimensional water tracer distribution from Markov chain Monte Carlo inversion of time-lapse ground-penetrating radar data

      Eric Laloy, Niklas Linde and Jasper A. Vrugt

      Article first published online: 13 JUL 2012 | DOI: 10.1029/2011WR011238

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      Key Points

      • First mass-conservative three-dimensional MCMC hydrogeophysical inversion
      • Much better estimates of plume morphology compared with classical inversion
      • A method for investigating the effect of spatial resolution on uncertainty
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      Calibration of two-dimensional floodplain modeling in the central Atchafalaya Basin Floodway System using SAR interferometry

      Hahn Chul Jung, Michael Jasinski, Jin-Woo Kim, C. K. Shum, Paul Bates, Jeffrey Neal, Hyongki Lee and Doug Alsdorf

      Article first published online: 13 JUL 2012 | DOI: 10.1029/2012WR011951

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      Key Points

      • To run hydrodyanmic modeling in the central Atchafalaya Basin Floodway System
      • To process Interferometric Synthetic Aperture Radar
      • To improve the calibration of 2D floodplain hydrodynamic modeling
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      Temporal dynamics of blue and green virtual water trade networks

      M. Konar, C. Dalin, N. Hanasaki, A. Rinaldo and I. Rodriguez-Iturbe

      Article first published online: 12 JUL 2012 | DOI: 10.1029/2012WR011959

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      Key Points

      • Blue and green water are traded differently due to distinct opportunity costs
      • Green water exports oscillate over time, while imports steadily increase
      • Both blue and green networks have been increasingly saving water over time
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      Non-Fickian dispersion of groundwater age

      Nicholas B. Engdahl, Timothy R. Ginn and Graham E. Fogg

      Article first published online: 12 JUL 2012 | DOI: 10.1029/2012WR012251

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      Key Points

      • The governing equations of groundwater age can be derived from a random walk
      • Time and age have the same probability distribution functions and moments
      • Groundwater age distributions in natural aquifers can be non-Fickian
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      Effects of non-Gaussian copula-based hydraulic conductivity fields on macrodispersion

      C. P. Haslauer, P. Guthke, A. Bárdossy and E. A. Sudicky

      Article first published online: 11 JUL 2012 | DOI: 10.1029/2011WR011425

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      Key Points

      • Measurements of hydraulic conductivity exhibit non-Gaussian spatial structure
      • This structure can be modelled using spatial non-Gaussian copulas
      • The spatial structure and the marginal distribution influence solute transport
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      Monitoring groundwater-surface water interaction using time-series and time-frequency analysis of transient three-dimensional electrical resistivity changes

      T. C. Johnson, L. D. Slater, D. Ntarlagiannis, F. D. Day-Lewis and M. Elwaseif

      Article first published online: 10 JUL 2012 | DOI: 10.1029/2012WR011893

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      Key Points

      • Surface ERT can image groundwater/river-water exchange
      • Time-series analysis on ERT images reveals locations of active exchange
      • Time-frequency analysis on ERT images reveals timing of active exchange
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      Investigating step-pool sequence stability

      Kevin A. Waters and Joanna Crowe Curran

      Article first published online: 7 JUL 2012 | DOI: 10.1029/2011WR011436

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      Key Points

      • Sequence stability correlated with geometric and resistance parameters
      • Stable sequences adjust to increase roughness and steepness during existence
      • Sediment concentration ratio may have predictive role in sequence stability
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      Concentrated flow erodibility for physically based erosion models: Temporal variability in disturbed and undisturbed rangelands

      Osama Z. Al-Hamdan, Frederick B. Pierson, Mark A. Nearing, C. Jason Williams, Jeffry J. Stone, Patrick R. Kormos, Jan Boll and Mark A. Weltz

      Article first published online: 7 JUL 2012 | DOI: 10.1029/2011WR011464

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      Key Points

      • Concentrated flow erodibility in rangelands decreases within a runoff event
      • Fire changes the soil properties affecting erodibility
      • Stream power provided the best linear function to describe the detachment rate
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      Delineation of recharge rate from a hybrid water table fluctuation method

      Eungyu Park

      Article first published online: 6 JUL 2012 | DOI: 10.1029/2011WR011696

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      Key Points

      • Conventional WTF method is revised
      • Mathematical form of transient fillable porosity is proposed
      • It is found that external drift of water-table is a major source of error
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      Scaling relationships for event water contributions and transit times in small-forested catchments in Eastern Quebec

      C. Segura, A. L. James, D. Lazzati and N. T. Roulet

      Article first published online: 4 JUL 2012 | DOI: 10.1029/2012WR011890

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      Key Points

      • The behavior of some of the model parameters vary consistently with storm size
      • The fraction of rainfall routed as event water is spatially constant
      • The time it takes for event water to be transferred is related to catchment size
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      Plume spreading in groundwater by stretching and folding

      David C. Mays and Roseanna M. Neupauer

      Article first published online: 3 JUL 2012 | DOI: 10.1029/2011WR011567

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      Key Points

      • Chaotic advection by stretching and folding provides good plume spreading
      • Chaotic advection can be created by a sequence of injections and extractions
  4. Reviews

    1. Top of page
    2. Commentaries
    3. Data and Analysis Notes
    4. Regular Article
    5. Reviews
    6. Technical Note
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      Review of surrogate modeling in water resources

      Saman Razavi, Bryan A. Tolson and Donald H. Burn

      Article first published online: 31 JUL 2012 | DOI: 10.1029/2011WR011527

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      Key Points

      • Categorize different surrogate-enabled analysis frameworks and their components
      • Summarize current surrogate modeling efforts and suggest future directions
      • Outline case study features that influence surrogate model selection or design
  5. Technical Note

    1. Top of page
    2. Commentaries
    3. Data and Analysis Notes
    4. Regular Article
    5. Reviews
    6. Technical Note
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      GeoFlow: A novel model simulator for prediction of the 3-D channeling flow in a rock fracture network

      Takuya Ishibashi, Noriaki Watanabe, Nobuo Hirano, Atsushi Okamoto and Noriyoshi Tsuchiya

      Article first published online: 24 JUL 2012 | DOI: 10.1029/2011WR011226

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      Key Points

      • A novel discrete fracture network model simulator, GeoFlow, has been developed
      • The results demonstrate GeoFlow has potential to predict 3-D channeling flow
      • GeoFlow will provide a new way to investigate fluid flow in a fracture network

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