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Water Resources Research

© 2013 American Geophysical Union

Cover image for Water Resources Research

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

Impact Factor: 2.957

ISI Journal Citation Reports © Ranking: 2011: 2/19 (Limnology); 3/78 (Water Resources); 41/205 (Environmental Sciences)

Online ISSN: 1944-7973

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Regular Articles
1. Machine learning and hurdle models for improving regional predictions of stream water acid neutralizing capacity
  Nicholas A. Povak, Paul F. Hessburg, Keith M. Reynolds, Timothy J. Sullivan, Todd C. McDonnell and R. Brion Salter
  Article first published online: 19 JUN 2013 | DOI: 10.1002/wrcr.20308
  Key Points
  Machine learning and hurdle models reduced model error rates over linear models
  Stream ANC was influenced by climate, vegetation, lithology and S deposition
  Acid sensitive streams were predicted across one-quarter of the region
2. Simultaneous determination of capillary pressure and relative permeability curves from core-flooding experiments with various fluid pairs
  Ronny Pini and Sally M. Benson
  Article first published online: 18 JUN 2013 | DOI: 10.1002/wrcr.20274
  Key Points
  Capillary pressure and relative permeability curves are simultaneously measured.
  Data are generated up to the end-point and water wet conditions are observed.
  The supercritical CO2/brine system behaves similarly to others gas/liquid pairs.
3. North Atlantic Oscillation amplifies orographic precipitation and river flow in upland Britain
  T. P. Burt and N. J. K. Howden
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20297
  Key Points
  NAO variations cause large differences in upland precipitation
  These variations translate directly to river flow.
  Results from the UK are replicated in Sri Lanka and NW USA
4. Modeling and inverting reactive stream tracers undergoing two-site sorption and decay in the hyporheic zone
  Zijie Liao, Dennis Lemke, Karsten Osenbrück and Olaf A. Cirpka
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20276
  Key Points
  joint analysis of fluorescein, resazurin and resorufin in streams
  shape-free inference of hyporheic travel-time distribution
  sorption of reactive tracers must not be neglected
5. You have full text access to this OnlineOpen article
  The intrinsic dependence structure of peak, volume, duration, and average intensity of hyetographs and hydrographs
  Francesco Serinaldi and Chris G. Kilsby
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20221
  Key Points
  The relationships between hydrograph and hyetograph characteristics are studied
  Simple bootstrap algorithms can reproduce pairwise dependence structures
  Confusing numerical relationships with stochastic can lead to misleading results
6. Identifying diagnostics for reservoir structure and CO₂ plume migration from multilevel pressure measurements
  Christin W. Strandli and Sally M. Benson
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20285
  Key Points
  Multilevel pressure measurements can be useful for monitoring sequestered CO2.
  Pressure buildups are diagnostic of reservoir structure and CO2 migration
  Vertical pressure gradients are diagnostic of reservoir structure and migration.
7. Dispersion variance for transport in heterogeneous porous media
  Marco Dentz and Felipe P. J. de Barros
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20288
  Key Points
  Quantify evolution of dispersion variance
  Strong dependence on dimensions of space and initial plume
  Self-averaging in d = 3, not in d = 2 dimensions
8. Modeling a network of turloughs in lowland karst
  L. W. Gill, O. Naughton and P. M. Johnston
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20299
  Key Points
  Fluctuation of ephemeral lakes (turloughs) in lowland karst areas modelled
  Karst hydrology modelled using pipe network based model with reservoirs
  Model predicts the submarine spring discharge from the karst network
9. A multiobjective reinforcement learning approach to water resources systems operation: Pareto frontier approximation in a single run
  A. Castelletti, F. Pianosi and M. Restelli
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20295
  Key Points
  MOFQI provides continuous Pareto front approximation in a single optimization
  Accuracy comparable with reiterate use of SO methods but lower computing cost
  Outperforms EMOs when no a priori knowledge on the decision space is available
10. Cost analysis of water and sediment diversions to optimize land building in the Mississippi River delta
  Melissa A. Kenney, Benjamin F. Hobbs, David Mohrig, Hongtai Huang, Jeffrey A. Nittrouer, Wonsuck Kim and Gary Parker
  Article first published online: 17 JUN 2013 | DOI: 10.1002/wrcr.20139
  Key Points
  Large-scale land building (>200 km2) over 50 years requires deep diversions
  Large diversions necessary due to higher sediment to water ratio
  Efficient projects depend on land goal, water constraint and scale economies
11. Space-time simulation of intermittent rainfall with prescribed advection field: Adaptation of the turning band method
  Etienne Leblois and Jean-Dominique Creutin
  Article first published online: 14 JUN 2013 | DOI: 10.1002/wrcr.20190
  Key Points
  Advection combined with anisotropic 3D TBM provides realistic kinematics
  Rainfall distribution skewness represented while preserving consistent structure
  Intermittency / rainfall independence vanishes in accumulation
12. Variations in surface water-ground water interactions along a headwater mountain stream: Comparisons between transient storage and water balance analyses
  Adam S. Ward, Robert A. Payn, Michael N. Gooseff, Brian L. McGlynn, Kenneth E. Bencala, Christa A. Kelleher, Steven M. Wondzell and Thorsten Wagener
  Article first published online: 14 JUN 2013 | DOI: 10.1002/wrcr.20148
  Key Points
  Patterns of channel discharge do not determine short- nor long-term storage.
  Tracer window of detection limits interpretation of short- & long-term storage.
  Transient storage and channel water balance are complimentary analyses.
13. Probabilistic flood risk assessment over large geographical regions
  Jozef Van Dyck and Patrick Willems
  Article first published online: 12 JUN 2013 | DOI: 10.1002/wrcr.20149
  Key Points
  New probabilistic model for flood loss assessment
  Probabilistic flood risk zones
  River flood loss quantification Belgium
14. Testing the realism of model structures to identify karst system processes using water quality and quantity signatures
  A. Hartmann, T. Wagener, A. Rimmer, J. Lange, H. Brielmann and M. Weiler
  Article first published online: 12 JUN 2013 | DOI: 10.1002/wrcr.20229
  Key Points
  A new model evaluation approach to identify system processes
  Combining calibration,sensitivity analysis and signatures reveals model behavior
  Hydrochemical information is crucial for identification of hydrological systems
15. A strategy for improved computational efficiency of the method of anchored distributions
  Matthew William Over, Yarong Yang, Xingyuan Chen and Yoram Rubin
  Article first published online: 10 JUN 2013 | DOI: 10.1002/wrcr.20182
  Key Points
  Impactful model inversion cost reduction with minor loss in prediction accuracy
  Clustering organizes similar parametrizations that share a likelihood function
16. You have full text access to this OnlineOpen article
  Characteristic mega-basin water storage behavior using GRACE
  J. T. Reager and James S. Famiglietti
  Article first published online: 10 JUN 2013 | DOI: 10.1002/wrcr.20264
  Key Points
  GRACE time series can be modeled with only 2 land surface parameters.
  Temperature, forest cover and soil whc are important controls.
  Land atmosphere interactions are critical in maintaining water in storage.
17. Temperature fluctuations underneath the ice in Diamond Lake, Hennepin County, Minnesota
  Gunther Kletetschka, Tomas Fischer, Jiří Mls and Petr Dědeček
  Article first published online: 10 JUN 2013 | DOI: 10.1002/wrcr.20261
  Key Points
  Snow and ice covering the lake can completely isolate the lake water thermally.
  Temperature of the lake water changes due to groundwater flow.
  Groundwater periodical changes are most likely due to tidal forces.
18. Dynamic root distributions in ecohydrological modeling: A case study at Walnut Gulch Experimental Watershed (pages 1–14)
  Gajan Sivandran and Rafael L. Bras
  Article first published online: 10 JUN 2013 | DOI: 10.1002/wrcr.20245
  Key Points
  Rooting scheme evolves in response to precipitation
  Rooting scheme adapts in respect to soil, slope and aspect
  Different plant life strategies are reflected in their rooting behavior
19. Evaluating surface and subsurface water storage variations at small time and space scales from relative gravity measurements in semiarid Niger
  Julia Pfeffer, Cédric Champollion, Guillaume Favreau, Bernard Cappelaere, Jacques Hinderer, Marie Boucher, Yahaya Nazoumou, Monique Oï, Maxime Mouyen, Christopher Henri, Nicolas Le Moigne, Sébastien Deroussi, Jérôme Demarty, Nicolas Boulain, Nathalie Benarrosh and Olivier Robert
  Article first published online: 10 JUN 2013 | DOI: 10.1002/wrcr.20235
  Key Points
  Intensive gravity field surveying was conducted in a semi-arid Sahelian area
  Gravity surveys revealed water storage variations at small time and space scales
  A large part of the gravity variability is attributed to the vadose zone
20. A reduced-order model for groundwater flow equation with random hydraulic conductivity: Application to Monte Carlo methods
  Damiano Pasetto, Mario Putti and William W-G. Yeh
  Article first published online: 6 JUN 2013 | DOI: 10.1002/wrcr.20136
  Key Points
  Developed a parameter-independent reduced model for a random field
  The reduced model runs 1,000 times faster than the original full system model
  The reduced model produces accurate expected statistics
21. Monthly river flow simulation with a joint conditional density estimation network
  Chao Li, Vijay P. Singh and Ashok K. Mishra
  Article first published online: 6 JUN 2013 | DOI: 10.1002/wrcr.20146
  Key Points
  Presents a probabilistic model for river flow synthesizing and downscaling
  The model is flexible at incorporating covariates
  Demonstrates its utility in river flow synthesizing and downscaling
22. Development and testing of a snow interceptometer to quantify canopy water storage and interception processes in the rain/snow transition zone of the North Cascades, Washington, USA
  Kael A. Martin, John T. Van Stan II, Susan E. Dickerson-Lange, James A. Lutz, Jeffrey W. Berman, Rolf Gersonde and Jessica D. Lundquist
  Article first published online: 6 JUN 2013 | DOI: 10.1002/wrcr.20271
  Key Points
  Successfully quantified changes in whole-canopy water storage
  Noted greater canopy capacity and efficiency than literature and modeled
  Future installations could inform land managers and models at watershed scale
23. State estimation in large-scale open channel networks using sequential Monte Carlo methods: Optimal sampling importance resampling and implicit particle filters
  Mohammad Rafiee, Axel Barrau and Alexandre M. Bayen
  Article first published online: 5 JUN 2013 | DOI: 10.1029/2011WR011608
  Key Points
  Data assimilation for large scale networks of open channels
  Applications of sequential Monte Carlo methods
  State estimation for distributed parameters systems
24. Fuzzy multiobjective models for optimal operation of a hydropower system
  Ramesh S. V. Teegavarapu, André R. Ferreira and Slobodan P. Simonovic
  Article first published online: 4 JUN 2013 | DOI: 10.1002/wrcr.20224
  Key Points
  New fuzzy multi-objective optimization models
  New Unit committement problem formulation using MINLP
  Multi-objective framework considering special type of fuzzy membership functions
25. Estimation of river depth from remotely sensed hydraulic relationships
  Matthew K. Mersel, Laurence C. Smith, Konstantinos M. Andreadis and Michael T. Durand
  Article first published online: 4 JUN 2013 | DOI: 10.1002/wrcr.20176
  Key Points
  River flow depths are estimated from remotely-sensed water surface measurements
  Empirical water surface width-elevation relationships used to estimate depths
  Spatial-averaging of retrieved variables may improve depth estimates
Review
1. Macropores and water flow in soils revisited
  Keith Beven and Peter Germann
  Article first published online: 4 JUN 2013 | DOI: 10.1002/wrcr.20156
  Key Points
  Darcy-Richards is inadequate
  Stokes flow may be useful in some circumstances
  Still important questions to be resolved in soil physics
Regular Articles
1. Performance analysis of statistical spatial measures for contaminant plume characterization toward risk-based decision making
  F. Boso, F. P. J. de Barros, A. Fiori and A. Bellin
  Article first published online: 3 JUN 2013 | DOI: 10.1002/wrcr.20270
  Key Points
  Use Spatial Statistical Measures to describe plume-scale contaminant transport
  Performance of the SSMs are tested against numerical simulations and field data
  SSMs can be used for preliminary risk assessment and to direct model development
2. Relevance of solutions to the Navier-Stokes equations for explaining groundwater flow in fractured karst aquifers
  Costantino Masciopinto and Domenico Palmiotta
  Article first published online: 3 JUN 2013 | DOI: 10.1002/wrcr.20279
  Key Points
  Density-dependent transient flow in karst fissures at high Reynolds numbers
  New solutions to the Navier-Stokes equations in fissures of complex geometry
  The N-S simulation results agree well with data collected during the field test
3. River velocities from sequential multispectral remote sensing images
  Wei Chen and Richard P. Mied
  Article first published online: 3 JUN 2013 | DOI: 10.1002/wrcr.20267
  Key Points
  Deriving river velocities using a new nonlinear multiple-tracer inverse model
  Demonstrate the method with Landsat and ASTER images over the Potomac River
  Good agreement with experimental results
4. Core-scale solute transport model selection using Monte Carlo analysis
  Bwalya Malama, Kristopher L. Kuhlman and Scott C. James
  Article first published online: 3 JUN 2013 | DOI: 10.1002/wrcr.20273
  Key Points
  Analyze applicability of three distinct models to core-scale transport
  Parameter estimation and fit of the three models to data
  Model selection using predictive uncertainty analysis
5. Cumulative biophysical impact of small and large hydropower development in Nu River, China
  Kelly M. Kibler and Desiree D. Tullos
  Article first published online: 3 JUN 2013 | DOI: 10.1002/wrcr.20243
  Key Points
  Cumulative biophysical effects of small hydropower can exceed those of large.
  Installed capacity of hydropower facilities may be a poor predictor of impact.
  Policies equating low installed capacity with low impact should be reevaluated.
6. How runoff begins (and ends): Characterizing hydrologic response at the catchment scale
  Benjamin B. Mirus and Keith Loague
  Article first published online: 31 MAY 2013 | DOI: 10.1002/wrcr.20218
  Key Points
  Development of a quantitative Dunne diagram is presented
  Relative rates of infiltration versus lateral drainage controls runoff
  Unsaturated storage dynamics are critical for evaluating runoff
7. Temporal variability of exchange between groundwater and surface water based on high-frequency direct measurements of seepage at the sediment-water interface
  Donald O. Rosenberry, Richard W. Sheibley, Stephen E. Cox, Frederic W. Simonds and David L. Naftz
  Article first published online: 31 MAY 2013 | DOI: 10.1002/wrcr.20198
  Key Points
  Flow across the sediment-water interface exhibits large temporal variability
  Seepage varies in response to rainfall, ET, wind, and stage change
  Seepage changes markedly within minutes to hours of common hydrological events
8. Concurrent conservative and reactive tracer tests in a stream undergoing hyporheic exchange
  Dennis Lemke, Zijie Liao, Thomas Wöhling, Karsten Osenbrück and Olaf A. Cirpka
  Article first published online: 31 MAY 2013 | DOI: 10.1002/wrcr.20277
  Key Points
  concurrent tests of conservative and reactive tracers in streams
  joint analysis of the tracers improved the estimation of hyporheic parameters
  Markov chain Monte Carlo methods used to infer parameter distributions
9. Temporal and spatial scaling of hydraulic response to recharge in fractured aquifers: Insights from a frequency domain analysis
  Joaquín Jiménez-Martínez, Laurent Longuevergne, Tanguy Le Borgne, Philippe Davy, Anna Russian and Olivier Bour
  Article first published online: 31 MAY 2013 | DOI: 10.1002/wrcr.20260
  Key Points
  Frequency domain analysis in fractured aquifers
  Temporal and spatial scaling in fractures aquifers
  Hydraulic parameters at large scale and aquifer recharge mechanisms
10. Predicting regime shifts in flow of the Gunnison River under changing climate conditions
  W. Paul Miller, Gina M. DeRosa, Subhrendu Gangopadhyay and Juan B. Valdés
  Article first published online: 30 MAY 2013 | DOI: 10.1002/wrcr.20215
  Key Points
  Projected Gunnison River Basin hydrology is fitted to a gamma distribution
  Changes to wet and dry regime characteristics under climate change are expected
  Changing regime characteristics may influence future reservoir operations
11. Colloid transport in saturated porous media: Elimination of attachment efficiency in a new colloid transport model
  Lee L. Landkamer, Ronald W. Harvey, Timothy D. Scheibe and Joseph N. Ryan
  Article first published online: 30 MAY 2013 | DOI: 10.1002/wrcr.20195
  Key Points
  This colloid transport model eliminates the empirical attachment efficiency.
  Introduce a new paradigm for colloid re-entrainment behavior.
  Model parameters related to magnitude of secondary energy minimum
12. Comparison of local indices for regional frequency analysis with an application to extreme skew surges
  Jérôme Weiss and Pietro Bernardara
  Article first published online: 29 MAY 2013 | DOI: 10.1002/wrcr.20225
  Key Points
  Guidelines for the selection of the local index for regional frequency analysis
  Application of regional frequency analysis to skew surges
13. Specifying a hierarchical mixture of experts for hydrologic modeling: Gating function variable selection
  Erwin Jeremiah, Lucy Marshall, Scott A Sisson and Ashish Sharma
  Article first published online: 29 MAY 2013 | DOI: 10.1002/wrcr.20150
  Key Points
  Addressing model parameter and structural uncertainties in a Bayesian setting
  Specifying catchment predictors for better model mixing and simulation
  Predicting streamflow for ungauged basin by regionalising predictor coefficients
14. You have full text access to this OnlineOpen article
  Insights into non-Fickian solute transport in carbonates
  Branko Bijeljic, Peyman Mostaghimi and Martin J. Blunt
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20238
  Key Points
  Transport computed through micro-CT images of six carbonate rocks is anomalous
  Highly anomalous transport is explained by the wide local velocity distribution
  The effect of pore structure and Peclet number is quantified
15. Infiltration in soils with a saturated surface
  W. L. Hogarth, D. A. Lockington, D. A. Barry, M. B. Parlange, R. Haverkamp and J.-Y. Parlange
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20227
  Key Points
  Analytic description of infiltration in soils
  Comparison of constant flux and saturated surface infiltration
  Linking infiltration to soil/water properties
16. Efficient posterior exploration of a high-dimensional groundwater model from two-stage Markov chain Monte Carlo simulation and polynomial chaos expansion
  Eric Laloy, Bart Rogiers, Jasper A. Vrugt, Dirk Mallants and Diederik Jacques
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20226
  Key Points
  Efficient two-stage MCMC simulation for CPU-demanding sampling
  Real-world application to the inference of a multi-layered 3D aquifer model
  A 2-5 times observed speed up in sampling efficiency
17. Long-term management of a hydroelectric multireservoir system under uncertainty using the progressive hedging algorithm
  P.-L. Carpentier, M. Gendreau and F. Bastin
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20254
  Key Points
  We apply the PHA on Hydro-Quebec's reservoir system.
  A long-term planning horizon is considered.
  Deterministic and stochastic solutions are compared.
18. Identifying streamgage networks for maximizing the effectiveness of regional water balance modeling
  L. M. Fry, T. S. Hunter, M. S. Phanikumar, V. Fortin and A. D. Gronewold
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20233
  Key Points
  Some gages are better than others for extrapolation of streamflow.
  Increased gaged area is not necessarily better for extrapolation.
  Similarity in some key physical properties increases ARM skill.
19. Estimating Escherichia coli loads in streams based on various physical, chemical, and biological factors
  Dipankar Dwivedi, Binayak P. Mohanty and Bruce J. Lesikar
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20265
  Key Points
  A BNN scheme is presented for estimating E. coli loads in streams
  E. coli load estimations by the BNN model are better than by the LOADEST model
  Physical, chemical, and biological factors are important for E-coli load
Technical Note
1. An accurate method for transient particle tracking
  Uli Maier and Claudius M. Bürger
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20236
  Key Points
  we extend finite difference particle tracking to fully transient
  using an exact analytical expresssion on rectangular grid
  full reversal of flow direction can be handled
Regular Articles
1. Global analysis of seasonal streamflow predictability using an ensemble prediction system and observations from 6192 small catchments worldwide
  Albert I. J. M. van Dijk, Jorge L. Peña-Arancibia, Eric F. Wood, Justin Sheffield and Hylke E. Beck
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20251
  Key Points
  Global bimonthly streamflow forecasts show potentially valuable skill
  Initial catchment conditions are responsible for most skill
  Skill can be estimated from model performance and theoretical skill
2. A coupled agronomic-economic model to consider allocation of brackish irrigation water
  Alon Ben-Gal, Hans-Peter Weikard, Syed Hamid Hussain Shah and Sjoerd E. A. T. M. van der Zee
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20258
  Key Points
  A sequential water use model with scarcity, inefficiency and saline return
  Marginal value of water is computed according to scarcity, salinity and loss
  Water management benefits increase with salinity level and evaporative losses
3. Quantification of the upstream-to-downstream influence in the Muskingum method and implications for speedup in parallel computations of river flow
  Cédric H. David, Zong-Liang Yang and James S. Famiglietti
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20250
  Key Points
  The influence between two river reaches in a Muskingum update is quantified.
  This influence decreases with distance and becomes null in computer addition.
  Such allows new parallel computing methods that are unprecedentedly fast.
4. Uncertainty in radar-rainfall composite and its impact on hydrologic prediction for the eastern Iowa flood of 2008
  Bong-Chul Seo, Luciana K. Cunha and Witold F. Krajewski
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20244
  Key Points
  A significant potential source of error exists in mosaicked radar-rainfall maps.
  Different radar calibration offsets lead to misestimation of rainfall amounts.
  Systematic error in rainfall significantly affects hydrologic predictions.
5. Advection around ventilated U-shaped burrows: A model study
  Andreas Brand, Jörg Lewandowski, Enrico Hamann and Gunnar Nützmann
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20266
  Key Points
  Advection occurs in sediments populated by organisms living in open ended tubes.
  The effects of advection compensate each other with respect to total fluxes.
  Advection can define a distinct microenvironment in the sediment.
6. Prediction of the saturated hydraulic conductivity from Brooks and Corey's water retention parameters
  Paolo Nasta, Jasper A. Vrugt and Nunzio Romano
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20269
  Key Points
  Model to predict Ks from the water retention parameters
  Treatment of connectivity and tortuosity
  Exploitation of the pore-size distribution through physically based concepts
7. Field and numerical determinations of pneumatic flow parameters of unsaturated fractured porous rocks on various scales
  S. Guillon, M. T. Vu, E. Pili and P. M. Adler
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20263
  Key Points
  Comparison of pneumatic injection tests and pressure fluctuation monitoring
  Interpretation of field data with 3D numerical simulations
  Influence of fracture density and size of tested volume on air permeability
8. Permeability evolution in carbonate fractures: Competing roles of confining stress and fluid pH
  Takuya Ishibashi, Thomas P. McGuire, Noriaki Watanabe, Noriyoshi Tsuchiya and Derek Elsworth
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20253
  Key Points
  We explore the permeability evolution of fractures in carbonate rock.
  Permeability evolution transits from increasing to decreasing.
  Pressure solution and free face dissolution causes permeability evolution.
9. Effects of climate change on stream temperature, dissolved oxygen, and sediment concentration in the Sierra Nevada in California
  Darren L. Ficklin, Iris T. Stewart and Edwin P. Maurer
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20248
  Key Points
  Stream temperature is expected to increase by 1 to 5.5 oC
  Dissolved oxygen concentrations are expected to decrease
  Sediment concentrations are projected to decrease by about 50%
10. Reduction of lateral pressure propagation due to dissipation into ambient mudrocks during geological carbon dioxide storage
  Kyung Won Chang, Marc A. Hesse and Jean-Philippe Nicot
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20197
  Key Points
  Pressure dissipation into ambient mudrock can slow lateral pressure propagation
  A single parameter governs the radial pressure propagation in a layered system
  Careful mudrock characterization is required to determine the storage capacity
11. Modeling the ecohydrological role of aspect-controlled radiation on tree-grass-shrub coexistence in a semiarid climate
  Xiaochi Zhou, Erkan Istanbulluoglu and Enrique R. Vivoni
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20259
  Key Points
  Explicitly treated of topographic influence on incoming shortwave radiation.
  Plant specific biological processes affect vegetation composition.
12. Coupled hydrogeomorphic and woody-seedling responses to controlled flood releases in a dryland river
  Andrew C. Wilcox and Patrick B. Shafroth
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20256
  Key Points
  Geomorphic effectiveness of floods varied temporally as plants grew larger
  Floods killed small woody seedlings as a result of both bed scour and burial
  Floods produced greater seedling mortality among tamarisk than willow
13. Analytic probability distributions for snow-dominated streamflow
  B. Schaefli, A. Rinaldo and G. Botter
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20234
  Key Points
  Analytic model for the probability distribution of snow-dominated streamflow
  Stochastic framework to link precipitation (rain, snow) and streamflow dynamics
  14 case studies confirm progress in statistical characterization of streamflow
14. Assessing the impact of end-member selection on the accuracy of satellite-based spatial variability models for actual evapotranspiration estimation
  Di Long and Vijay P. Singh
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20208
  Key Points
  Endmembers largely determine the magnitudes of EF retrievals
  Endmembers have minor effect on standard deviation and skewness of EF retrievals
  Predictability of ET models depends mostly on the ability of Ts to capture EF
15. Comparing multistate expected damages, option price and cumulative prospect measures for valuing flood protection
  Scott Farrow and Michael Scott
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20217
  Key Points
  The key choice is between non-expected and expected utility measures.
  Continuous event modeling is useful
  The basic non-expected utility value is less than the expected utility value
16. Performance of complex snow cover descriptions in a distributed hydrological model system: A case study for the high Alpine terrain of the Berchtesgaden Alps
  M. Warscher, U. Strasser, G. Kraller, T. Marke, H. Franz and H. Kunstmann
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20219
  Key Points
  Complex snow descriptions reproduce observed snow distribution
  Energy balance method enhances modeling daily snowmelt and discharge variations
  Simulating lateral snow transport improves runoff modeling in the catchment
17. The plume spreading in the MADE transport experiment: Could it be predicted by stochastic models?
  A. Fiori, G. Dagan, I. Jankovic and A. Zarlenga
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20128
  Key Points
  A semi-analytical transport model is applied to the MADE experiment
  The parameters are derived from literature, and no fitting was required
  Results suggest that advection may explain the MADE plume behavior
18. You have full text access to this OnlineOpen article
  Estimating snow water equivalent from GPS vertical site-position observations in the western United States
  Karli J. Ouellette, Caroline de Linage and James S. Famiglietti
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20173
  Key Points
  Seasonal land surface deformation is observed in the Western U.S.
  Crustal loading by the snowpack dominates the observed seasonal deformation
  GPS observations may be inverted to estimate snow water equivalent
19. Threshold behavior in a fissured granitic catchment in southern China: (2) modeling and uncertainty analysis
  Congsheng Fu, Jianyao Chen, Huabo Jiang and Linyao Dong
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20193
  Key Points
  Influence of model uncertainty on threshold
20. Threshold behavior in a fissured granitic catchment in southern China: 1. Analysis of field monitoring results
  Congsheng Fu, Jianyao Chen, Huabo Jiang and Linyao Dong
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20191
  Key Points
  Both the plot and catchment scales.
21. Analytical solution for reactive solute transport considering incomplete mixing within a reference elementary volume
  Gabriele Chiogna and Alberto Bellin
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20200
  Key Points
  Incomplete mixing at sub-Darcy scale is relevant for reactive solute transport
  Incomplete mixing at sub-Darcy scale can be modeled using a Beta distribution
  We propose a reactive transport model which considers incomplete mixing
22. Evaluating controls on coupled hydrologic and vegetation dynamics in a humid continental climate watershed using a subsurface-land surface processes model
  Chaopeng Shen, Jie Niu and Mantha S. Phanikumar
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20189
  Key Points
  Evaluated relative controls on hydrologic and vegetation fluxes and states
  Evaluated the coupling strengths between biogeochemical and hydrologic cycles
  Elucidated patterns of hydrology and vegetation dynamics in a Great Lakes basin
23. Spectrum of storm event hydrologic response in urban watersheds
  B. K. Smith, J. A. Smith, M. L. Baeck, G. Villarini and D. B. Wright
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20223
  Key Points
  Peak discharge and runoff ratio distributions vary greatly between urban basins
  Stormwater detention infrastructure increases response times and runoff ratios
  Spatial and temporal properties of flood-producing rainfall vary over the basins
Technical Note
1. Capillary effect on water table fluctuations in unconfined aquifers
  Jun Kong, Cheng-Ji Shen, Pei Xin, Zhiyao Song, Ling Li, D. A. Barry, D.-S. Jeng, F. Stagnitti, D. A. Lockington and J.-Y. Parlange
  Article first published online: 28 MAY 2013 | DOI: 10.1002/wrcr.20237
  Key Points
  A new governing equation of watertable dynamics was derived.
  A new analytical solution for watertable fluctuations was derived.
  The effect of finite unsaturated zone thickness was examined.
2. Use of pan evaporation to estimate terrestrial evaporation trends: The case of the Tibetan Plateau
  Wilfried Brutsaert
  Article first published online: 22 MAY 2013 | DOI: 10.1002/wrcr.20247
  Key Points
  Often decreasing pan evaporation means increasing terrestrial evaporation.
  Past global dimming was likely too weak to cause wide decreased evaporation.
  Often a decrease in wind speed, i.e. stilling, leads to increasing evaporation.
Regular Articles
1. Numerical assessment of 3-D macrodispersion in heterogeneous porous media
  A. Beaudoin and J.-R. de Dreuzy
  Article first published online: 22 MAY 2013 | DOI: 10.1002/wrcr.20206
  Key Points
  Heterogeneity-induced dispersion is much larger in 3D than in 2D
  Braiding of high-velocity channels critically enhance transverse dispersion
  Longitudinal dispersion also comes from high correlations of the velocity field
2. Transient groundwater dynamics in a coastal aquifer: The effects of tides, the lunar cycle, and the beach profile
  Elena Abarca, Hanan Karam, Harold F. Hemond and Charles F. Harvey
  Article first published online: 22 MAY 2013 | DOI: 10.1002/wrcr.20075
  Key Points
  The intertidal saline cell is not a permanent feature of a coastal aquifer
  The intertidal saline cell cycle is linked to the lunar cycle of tides
  The cell cycle modulates the fresh and salt groundwater fluxes to the ocean
3. Transport and fate of microorganisms in soils with preferential flow under different solution chemistry conditions
  Yusong Wang, Scott A. Bradford and Jiří Šimünek
  Article first published online: 17 MAY 2013 | DOI: 10.1002/wrcr.20174
  Key Points
  Preferential transport became more important under higher overall retention.
  Mass transfer was significant and important in preferential flow systems.
4. First evaluation of the climatological calibration algorithm in the real-time TMPA precipitation estimates over two basins at high and low latitudes
  Bin Yong, Liliang Ren, Yang Hong, Jonathan J. Gourley, Yudong Tian, George J. Huffman, Xi Chen, Weiguang Wang and Yixin Wen
  Article first published online: 17 MAY 2013 | DOI: 10.1002/wrcr.20246
  Key Points
  The crucial upgrade of TMPA-RT effectively reduces the systematic errors.
  This upgrade tends to perform worse at higher latitudes, especially in winter.
  Future efforts include improved error structure and extension to high latitudes.
5. Coherent structures in flow over two-dimensional dunes
  Kyungsik Chang and George Constantinescu
  Article first published online: 17 MAY 2013 | DOI: 10.1002/wrcr.20239
  Key Points
  streaks penetrate away from dunes over a distance of about 3 times their dunes
  large scale streaks are due to formation of arrays of large scale hairpins
  new mechanism for formation of large-scale hairpins over dunes
6. Mapping large-scale river flow hydraulics in the Amazon Basin
  Augusto C. V. Getirana and Rodrigo C. D. Paiva
  Article first published online: 17 MAY 2013 | DOI: 10.1002/wrcr.20212
  Key Points
  first attempt to map river flow dynamics in the Amazon basin
  new empirical equation for time of peak of flood waves designed for large rivers
  the map has a percentage of detection of 83.4%
7. Physical dispersion and dilution of ballast water discharge in the St. Clair River: Implications for biological invasions
  Yajun Sun, Mathew G. Wells, Sarah A. Bailey and Eric J. Anderson
  Article first published online: 14 MAY 2013 | DOI: 10.1002/wrcr.20201
  Key Points
  Limited transverse mixing predicts discharge never reaches the opposite bank.
  Power-law decay of peak concentration can considerably reduce invasion risks.
  Distinct travels speeds occur across the wide channel due to velocity shear.
8. Impact of seasonal variability and monitoring mode on the adequacy of fiber-optic distributed temperature sensing at aquifer-river interfaces
  Stefan Krause and Theresa Blume
  Article first published online: 14 MAY 2013 | DOI: 10.1002/wrcr.20232
  Key Points
  FO-DTS signal strength varies significantly between different seasons
  Choice of FO-DTS monitoring-mode substantial impacts on survey results
  Two-way single-ended averaging provides highest accuracy of signal detection
9. Factors affecting the development and dynamics of hypoxia in a large shallow stratified lake: Hourly to seasonal patterns
  Damien Bouffard, Josef Daniel Ackerman and Leon Boegman
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20241
  Key Points
  SOD and HOD contribute equally to hypoxia
  hypolimnion thickness affects the relative contribution of HOD
  These observation apply to a wide range of lakes
Technical Note
1. Polynomial approximate solutions of a generalized Boussinesq equation
  Jeffrey S. Olsen and Aleksey S. Telyakovskiy
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20242
  Key Points
  New analytical solutions to the generalized Boussinesq equation were obtained.
  The approximate solutions reproduce exact solutions of the Boussinesq equation.
  The approximate solutions compare favorably with the exact numerical solution.
Regular Articles
1. A fast simulation method for uncertainty quantification of subsurface flow and transport
  Daniel W. Meyer, Hamdi A. Tchelepi and Patrick Jenny
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20240
  Key Points
  new polar Markovian velocity processes (PMVPs) to model macro-dispersion
  generalization of PMVPs for inhomogeneous cases with conductivity measurements
  validation of PMVP with Monte Carlo, CPU-time PMVP = CPU-time MC / 1000
2. A Bayesian analysis of sensible heat flux estimation: Quantifying uncertainty in meteorological forcing to improve model prediction
  Ali Ershadi, Matthew F. McCabe, Jason P. Evans, Gregoire Mariethoz and Dmitri Kavetski
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20231
  Key Points
  Bayesian inference with prior info is well suited for input uncertainty analysis
  The land surface temperature has large uncertainties in flux estimation
  Scaling of surface temperature is required to capture spatial variability
Technical Note
1. Developing semianalytical solutions for multispecies transport coupled with a sequential first-order reaction network under variable flow velocities and dispersion coefficients (page 000)
  Heejun Suk
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20230
  Key Points
  semianalytical method for solving a multispecies reactive-transport equation
  sequential first-order reaction under spatially or temporally varying flow
  GITT and general linear-transformation method by Clement (2001)
Regular Articles
1. Characterization of fractured reservoirs using tracer and flow-rate data
  Egill Juliusson and Roland N. Horne
  Article first published online: 8 MAY 2013 | DOI: 10.1002/wrcr.20220
  Key Points
  Efficient method to characterize fractured reservoirs
  Estimation and prediction of tracer transport at variable flow-rates
  Novel inversion methodology for tracer transport data
2. Climate driver informed short-term drought risk evaluation
  Benjamin J. Henley, Mark A. Thyer and George Kuczera
  Article first published online: 2 MAY 2013 | DOI: 10.1002/wrcr.20222
  Key Points
  Climate driver informed short-term drought risk methodology is introduced
  Risk evaluated in each time step conditioned on climate driver & initial storage
  Traditional approaches underestimate the severity and duration of drought risk
Technical Note
1. Tracking trade transactions in water resource systems: A node-arc optimization formulation
  Tohid Erfani, Ivana Huskova and Julien J. Harou
  Article first published online: 2 MAY 2013 | DOI: 10.1002/wrcr.20211
  Key Points
  arc-path and node-arc formulations can track transactions in water networks
  formulation allows converting existing arc-node hydro-economic models
  node-arc formulation builds larger models but with easier data management

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