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Water Resources Research

Cover image for Vol. 48 Issue 4

April 2012

Volume 48, Issue 4

  1. Technical Note

    1. Top of page
    2. Technical Note
    3. Regular Article
    4. Rapid Communications
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      Heterogeneity of biogenic gas ebullition in subtropical peat soils is revealed using time-lapse cameras

      Xavier Comas and William Wright

      Article first published online: 12 APR 2012 | DOI: 10.1029/2011WR011654

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      Key Points

      • Ebullition from shallow subtropical peat soils is highly heterogeneous
      • Time-lapse cameras allow for flux monitoring at high temporal resolution
      • Increases in atmospheric pressure result in gas release from shallow peat
  2. Regular Article

    1. Top of page
    2. Technical Note
    3. Regular Article
    4. Rapid Communications
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      A general memory function for modeling mass transfer in groundwater transport

      Vladimir Cvetkovic

      Article first published online: 28 APR 2012 | DOI: 10.1029/2011WR011657

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      Key Points

      • Power-law extension of the Gamma distribution is a suitable and general form
      • For attenuation of tracers subject to diffusion-sorption in groundwater transport
      • Undisturbed sample test can in principle be used for inferring retention parameter
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      Field method for separating the contribution of surface-connected preferential flow pathways from flow through the soil matrix

      Emily C. Sanders, Majdi R. Abou Najm, Rabi H. Mohtar, Eileen Kladivko and Darrell Schulze

      Article first published online: 28 APR 2012 | DOI: 10.1029/2011WR011103

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      Key Points

      • Improve how PF pathways contribute to infiltration at various moisture contents
      • The use of liquid latex for hydraulically inactivating PFPs and separating flow
      • Improve evolution of PFPs (cracks and biological pores) using liquid latex
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      Grid digital elevation model based algorithms for determination of hillslope width functions through flow distance transforms

      Jintao Liu, Xi Chen, Xingnan Zhang and Kyle D. Hoagland

      Article first published online: 28 APR 2012 | DOI: 10.1029/2011WR011395

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      Key Points

      • Deriving hillslope geometric characteristics guided by hillslope storage dynamic
      • Deriving hillslope width functions through flow distance transforms
      • The natural hillslope width function can be well fitted by Gaussian function
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      Estimation of rain kinetic energy from radar reflectivity and/or rain rate based on a scaling formulation of the raindrop size distribution

      Nan Yu, Brice Boudevillain, Guy Delrieu and Remko Uijlenhoet

      Article first published online: 28 APR 2012 | DOI: 10.1029/2011WR011437

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      Key Points

      • A general scaling raindrop size distribution model
      • Estimation of parameters in DSD model
      • Radar and raingauge separately or jointly to estimate third moment of DSD
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      Quantifying total suspended sediment export from the Burdekin River catchment using the loads regression estimator tool

      Petra M. Kuhnert, Brent L. Henderson, Stephen E. Lewis, Zoe T. Bainbridge, Scott N. Wilkinson and Jon E. Brodie

      Article first published online: 28 APR 2012 | DOI: 10.1029/2011WR011080

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      Key Points

      • Regression based approach incorporating key hydrological processes
      • Inclusion of hydrological terms explains a large proportion of variation in data
      • Management through vegetation cover may reduce sediment loads in the Burdekin
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      Natural conditions for more limited osmotic abnormal fluid pressures in sedimentary basins

      Joachim Tremosa, Julio Gonçalvès and Jean-Michel Matray

      Article first published online: 27 APR 2012 | DOI: 10.1029/2011WR010914

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      Key Points

      • Natural solutions lead to more limited osmotic efficiency and overpressures
      • Osmotic overpressures are also obtained with steady-state situations
      • Tournemire excess-hydraulic head is partly osmotically induced
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      Accuracy of scaled GRACE terrestrial water storage estimates

      F. W. Landerer and S. C. Swenson

      Article first published online: 27 APR 2012 | DOI: 10.1029/2011WR011453

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      Key Points

      • We present gridded gain factors and error maps for GRACE
      • Measurement and leakage errors are taken into account
      • The new method does not require the use of spherical harmonics by the users
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      A semianalytic model for the computation of imbibition through polygonal cross sections

      Daesang Kim and W. Brent Lindquist

      Article first published online: 26 APR 2012 | DOI: 10.1029/2011WR011111

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      Key Points

      • New method to compute arc-menisci configurations in imbibition process
      • Application of the method to throat cross sections at different wetting angles
      • Discussion on the chord axis independent of wetting angle
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      Dominant controls on pesticide transport from tile to catchment scale: Lessons from a minimalist model

      S. Zanardo, N. B. Basu, G. Botter, A. Rinaldo and P. S. C. Rao

      Article first published online: 25 APR 2012 | DOI: 10.1029/2010WR010088

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      Key Points

      • We propose a new, parsimonious modeling framework for pesticide dynamics
      • The model is tested with a data-set spanning over different spatial scales
      • Our Analysis suggests robustness and transferability of the approach
      Corrected by:

      Correction: Correction to “Dominant controls on pesticide transport from tile to catchment scale: Lessons from a minimalist model”

      Vol. 48, Issue 9, Article first published online: 22 SEP 2012

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      Evaluating effective reaction rates of kinetically driven solutes in large-scale, statistically anisotropic media: Human health risk implications

      Erica R. Siirila and Reed M. Maxwell

      Article first published online: 25 APR 2012 | DOI: 10.1029/2011WR011516

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      Key Points

      • Time dependent reactions affect the magnitude and distribution of cancer risk
      • Plume retardation due to kinetic sorption is augmented with local dispersion
      • Stratification is linked to higher aquifer connectivity and less macrodispersion
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      Assessment of the two relaxation time Lattice-Boltzmann scheme to simulate Stokes flow in porous media

      L. Talon, D. Bauer, N. Gland, S. Youssef, H. Auradou and I. Ginzburg

      Article first published online: 24 APR 2012 | DOI: 10.1029/2011WR011385

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      Key Points

      • Permeability K is confirmed to be viscosity independent using TRT LBM unlike BGK
      • K depends less on the numerical errors using Darcy's Law than Energy Dissipation
      • Computation time can be optimized by adjusting viscosity and sound speed
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      Hydroclimatology of flash flooding in Atlanta

      Daniel B. Wright, James A. Smith, Gabriele Villarini and Mary Lynn Baeck

      Article first published online: 20 APR 2012 | DOI: 10.1029/2011WR011371

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      Key Points

      • Bias-corrected radar rainfall captures the structure of heavy rainfall
      • Flood variability has increased due to urban impacts on runoff production
      • Flood response depends on basin size, drainage structure, and land-use
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      Upscaling unsaturated flow in binary porous media with air entry pressure effects

      Adam Szymkiewicz, Rainer Helmig and Insa Neuweiler

      Article first published online: 19 APR 2012 | DOI: 10.1029/2011WR010893

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      Key Points

      • Limited applicability of the Richards' equation for heterogeneous media
      • Upscaling technique accounting for heterogeneity in the air entry pressure
      • Hysteresis of the upscaled hydraulic functions
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      Potential drought stress in a Swiss mountain catchment—Ensemble forecasting of high mountain soil moisture reveals a drastic decrease, despite major uncertainties

      Ole Rössler, Bernd Diekkrüger and Jörg Löffler

      Article first published online: 19 APR 2012 | DOI: 10.1029/2011WR011188

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      Key Points

      • Ensemble forecast of mountain soil moisture
      • Downscaling approch more important than RCM
      • Soil moisture decrease with high uncertainties
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      Solute transport in dual-permeability porous media

      Feike J. Leij, Nobuo Toride, Malcolm S. Field and Antonella Sciortino

      Article first published online: 19 APR 2012 | DOI: 10.1029/2011WR011502

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      Key Points

      • Solution for transport in dual-velocity media
      • Time moments for solute dispersion
      • Description of double peaks in BTC
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      Ground referencing GRACE satellite estimates of groundwater storage changes in the California Central Valley, USA

      B. R. Scanlon, L. Longuevergne and D. Long

      Article first published online: 18 APR 2012 | DOI: 10.1029/2011WR011312

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      Key Points

      • GWS declines from GRACE compare well with those from monitoring well network
      • Output from CSR and GRGS processing centers are highly correlated
      • New GRACE processing approach reduces uncertainties in GWS changes
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      Examining the effectiveness and robustness of sequential data assimilation methods for quantification of uncertainty in hydrologic forecasting

      Caleb M. DeChant and Hamid Moradkhani

      Article first published online: 18 APR 2012 | DOI: 10.1029/2011WR011011

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      Key Points

      • Both the EnKF and PF show similar abilities to track the observations
      • EnKF consistently produces overconfident results in comparison to the PF
      • PF is a more robust parameter estimation technique than the EnKF
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      Exploring changes in the spatial distribution of stream baseflow generation during a seasonal recession

      R. A. Payn, M. N. Gooseff, B. L. McGlynn, K. E. Bencala and S. M. Wondzell

      Article first published online: 18 APR 2012 | DOI: 10.1029/2011WR011552

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      Key Points

      • Stream baseflow generation exhibited strong spatio-temporal variability
      • Spatial variation in yields suggested influence of subsurface structure
      • We observed shifts from topographic to subsurface control with flow recession
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      Assessment of flow forces on large wood in rivers

      F. Douglas Shields Jr. and Carlos V. Alonso

      Article first published online: 17 APR 2012 | DOI: 10.1029/2011WR011547

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      Key Points

      • Lab lift and drag coefficients for cylinders may be used for cylindrical logs
      • Coefficients for complex large wood do not vary systematically with orientation
      • Geometrically complex large wood has coefficients approaching blunt body values
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      Testing the noble gas paleothermometer with a yearlong study of groundwater noble gases in an instrumented monitoring well

      Chris M. Hall, M. Clara Castro, Kyger C. Lohmann and Tie Sun

      Article first published online: 17 APR 2012 | DOI: 10.1029/2011WR010951

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      Key Points

      • Soil air conditions can change during the year and this can affect NGTs
      • No single NGT model can account for the entire dataset
      • NGT models must average conditions over years
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      A network theory for resource exchange between rivers and their watersheds

      John L. Sabo and Elizabeth M. Hagen

      Article first published online: 14 APR 2012 | DOI: 10.1029/2011WR010703

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      Key Points

      • Rivers supply 20-50% of the average watershed with measureable energy fluxes
      • The spatial extent of energy flow depends on planform and network geomorphology
      • Geomorphology establishes hot spots of resource exchange in watershed ecosystems
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      Exploratory functional flood frequency analysis and outlier detection

      Fateh Chebana, Sophie Dabo-Niang and Taha B. M. J. Ouarda

      Article first published online: 14 APR 2012 | DOI: 10.1029/2011WR011040

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      Key Points

      • General functional methodology : data smoothing, location, scale, outliers
      • Adaptation to floods with specific choices from the general functional method
      • Case study : detailed results and comparison with multivariate ones
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      Hydrologic and geomorphic controls on hyporheic exchange during base flow recession in a headwater mountain stream

      Adam S. Ward, Michael Fitzgerald, Michael N. Gooseff, Thomas J. Voltz, Andrew M. Binley and Kamini Singha

      Article first published online: 13 APR 2012 | DOI: 10.1029/2011WR011461

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      Key Points

      • No evidence of hydraulic gradients constricting hyporheic zones in steep valleys
      • Hyporheic response to changing hydraulic gradients varies with valley constraint
      • Hydrogeophysical methods characterize hyporheic spatial and temporal dynamics
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      Flood timescales: Understanding the interplay of climate and catchment processes through comparative hydrology

      Ladislav Gaál, Ján Szolgay, Silvia Kohnová, Juraj Parajka, Ralf Merz, Alberto Viglione and Günter Blöschl

      Article first published online: 12 APR 2012 | DOI: 10.1029/2011WR011509

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      Key Points

      • Catchment area is not most important control on flood duration in study region
      • Climate and geology exert stronger controls
      • Comparative hydrology is useful to understand process interplay across scales
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      Exploring the relationship between changes in climate and floods using a model-based analysis

      Yeshewatesfa Hundecha and Bruno Merz

      Article first published online: 12 APR 2012 | DOI: 10.1029/2011WR010527

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      Key Points

      • Detection of changes in flow extremes
      • Attribution of changes in flow extremes to meteorological drivers
      • Implementation of a hydrological model and a stochastic weather generator
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      Relative efficiency of land surface energy balance components

      S. M. Bateni and D. Entekhabi

      Article first published online: 11 APR 2012 | DOI: 10.1029/2011WR011357

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      Key Points

      • Role of land surface temperature in energy balance partitioning
      • Bases for mapping of surface turbulent fluxes
      • Relative efficiency of surface energy balance components
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      On the effects of improved cross-section representation in one-dimensional flow routing models applied to ephemeral rivers

      Christopher J. Hutton, Richard E. Brazier, Andrew P. Nicholas and Mark Nearing

      Article first published online: 10 APR 2012 | DOI: 10.1029/2011WR011298

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      Key Points

      • Channel morphology in flood routing models is not represented adequately
      • LiDAR derived topographic data leads to improved flash flood modelling
      • Incorporating LiDAR data leads to more robust model parameters for prediction
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      Wind-induced resuspension in a shallow lake from Medium Resolution Imaging Spectrometer (MERIS) full-resolution reflectances

      Marieke A. Eleveld

      Article first published online: 7 APR 2012 | DOI: 10.1029/2011WR011121

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      Key Points

      • Images acquired during moderate wind speeds (4 to 9 m/s) register resuspension
      • Retrieved surface TSM maps from remote sensing match predicted resuspension maps
      • Spatial patterns in turbidity can be well explained from water depth and wind
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      Interfacing a one-dimensional lake model with a single-column atmospheric model: Application to the deep Lake Geneva, Switzerland

      Stéphane Goyette and Marjorie Perroud

      Article first published online: 6 APR 2012 | DOI: 10.1029/2011WR011223

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      Key Points

      • Air/water interaction
      • Physically-based model
      • Climate change vs lakes
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      Toward disentangling the effect of hydrologic and nitrogen source changes from 1992 to 2001 on incremental nitrogen yield in the contiguous United States

      Md Jahangir Alam and Jonathan L. Goodall

      Article first published online: 5 APR 2012 | DOI: 10.1029/2011WR010967

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      Key Points

      • Hydrologic factors were primarily responsible for the decrease in nitrogen yield
      • The Upper Mississippi Basin showed a decrease in yield
      • Nitrogen yield from urban sources increased over the study period
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      Analyses of a long-term, high-resolution radar rainfall data set for the Baltimore metropolitan region

      James A. Smith, Mary Lynn Baeck, Gabriele Villarini, Claire Welty, Andrew J. Miller and Witold F. Krajewski

      Article first published online: 5 APR 2012 | DOI: 10.1029/2011WR010641

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      Key Points

      • Development of a a long-term, high-resolution radar rainfall data set
      • Characterization of striking spatial heterogeneities in rainfall for Baltimore
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      Multiscale parameterization with adaptive regularization for improved assimilation of nonlocal observation

      Yan Chen and Dean S. Oliver

      Article first published online: 4 APR 2012 | DOI: 10.1029/2011WR011144

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      Key Points

      • Localization is important to regularize updates from the ensemble Kalman filter
      • Localization introduces bias for assimilation of nonlocal observations
      • Application of multiscale parameterization with localization reduces the bias
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      Assessing preferences for wastewater treatment in a rural area using choice experiments

      Margarita Genius, Angeliki N. Menegaki and Konstantinos P. Tsagarakis

      Article first published online: 3 APR 2012 | DOI: 10.1029/2011WR010727

      Key Points

      • Overall, farmers favor the construction of a WWTP
      • Policy makers might address an education gap with the dissemination of more info
      • Participants appreciate highly the fact that new agricultural land can be created
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      Parameter estimation by ensemble Kalman filters with transformed data: Approach and application to hydraulic tomography

      A. Schöniger, W. Nowak and H.-J. Hendricks Franssen

      Article first published online: 3 APR 2012 | DOI: 10.1029/2011WR010462

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      Key Points

      • Apparent non-linearity of observed data removed by empirical transformation
      • This is an implicit pseudo-linearization for improved EnKF results
      • First application of EnKFs to hydraulic tomography, unprecedented resolution
  3. Rapid Communications

    1. Top of page
    2. Technical Note
    3. Regular Article
    4. Rapid Communications
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      Saline pulse test monitoring with the self-potential method to nonintrusively determine the velocity of the pore water in leaking areas of earth dams and embankments

      S. J. Ikard, A. Revil, A. Jardani, W. F. Woodruff, M. Parekh and M. Mooney

      Article first published online: 28 APR 2012 | DOI: 10.1029/2010WR010247

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      Key Points

      • The transport of a salt plume generates recordable electrical voltages
      • These voltages can be used to track the salt plume
      • New applications can be seen for monitoring internal erosion

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