Publications
443 results found
Annand HJJ, Wheater HSS, Pomeroy JWW, 2023, The influence of roads on depressional storage capacity estimates from high-resolution LiDAR DEMs in a Canadian Prairie agricultural basin, CANADIAN WATER RESOURCES JOURNAL, ISSN: 0701-1784
Woldegiorgis BT, Baulch H, Wheater H, et al., 2023, Impacts of Uncontrolled Operator Splitting Methods on Parameter Identification, Prediction Uncertainty, and Subsurface Flux Representation in Conceptual Hydrological Models, WATER RESOURCES RESEARCH, Vol: 59, ISSN: 0043-1397
Wheater HS, Peach DW, Suarez F, et al., 2023, Understanding the Silala River-Scientific insights from the dispute over the status and use of the waters of the Silala (Chile v. Bolivia), WILEY INTERDISCIPLINARY REVIEWS-WATER, ISSN: 2049-1948
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- Citations: 3
Abdelhamed MS, Elshamy ME, Razavi S, et al., 2023, Challenges in Hydrologic-Land Surface Modeling of Permafrost Signatures-A Canadian Perspective, JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS, Vol: 15
Wheater HS, Pomeroy JW, Pietroniro A, et al., 2022, Advances in modelling large river basins in cold regions with Modelisation Environmentale Communautaire-Surface and Hydrology (MESH), the Canadian hydrological land surface scheme, HYDROLOGICAL PROCESSES, Vol: 36, ISSN: 0885-6087
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- Citations: 9
Abdelhamed MS, Elshamy ME, Wheater HS, et al., 2022, Hydrologic-land surface modelling of the Canadian sporadic-discontinuous permafrost: Initialization and uncertainty propagation, HYDROLOGICAL PROCESSES, Vol: 36, ISSN: 0885-6087
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- Citations: 3
Wong JS, Zhang X, Gharari S, et al., 2021, Assessing Water Balance Closure Using Multiple Data Assimilation- and Remote Sensing-Based Datasets for Canada, JOURNAL OF HYDROMETEOROLOGY, Vol: 22, Pages: 1569-1589, ISSN: 1525-755X
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- Citations: 9
DeBeer CM, Wheater HS, Pomeroy JW, et al., 2021, Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada - Part 2: Future change in cryosphere, vegetation, and hydrology, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 25, Pages: 1849-1882, ISSN: 1027-5606
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- Citations: 15
Razavi S, Gober P, Maier HR, et al., 2020, Anthropocene flooding: Challenges for science and society, HYDROLOGICAL PROCESSES, Vol: 34, Pages: 1996-2000, ISSN: 0885-6087
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- Citations: 35
Asong ZE, Elshamy ME, Princz D, et al., 2020, High-resolution meteorological forcing data for hydrological modelling and climate change impact analysis in the Mackenzie River Basin, EARTH SYSTEM SCIENCE DATA, Vol: 12, Pages: 629-645, ISSN: 1866-3508
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- Citations: 20
Costa D, Baulch H, Elliott J, et al., 2020, Modelling nutrient dynamics in cold agricultural catchments: A review, ENVIRONMENTAL MODELLING & SOFTWARE, Vol: 124, ISSN: 1364-8152
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- Citations: 12
Marsh CB, Pomeroy JW, Spiteri RJ, et al., 2020, A Finite Volume Blowing Snow Model for Use With Variable Resolution Meshes, WATER RESOURCES RESEARCH, Vol: 56, ISSN: 0043-1397
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- Citations: 27
Marsh CB, Pomeroy JW, Wheater HS, 2020, The Canadian Hydrological Model (CHM) v1.0: a multi-scale, multi-extent, variable-complexity hydrological model - design and overview, GEOSCIENTIFIC MODEL DEVELOPMENT, Vol: 13, Pages: 225-247, ISSN: 1991-959X
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- Citations: 28
Elshamy ME, Princz D, Sapriza-Azuri G, et al., 2020, On the configuration and initialization of a large-scale hydrological land surface model to represent permafrost, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 24, Pages: 349-379, ISSN: 1027-5606
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- Citations: 11
Gharari S, Clark MP, Mizukami N, et al., 2019, Improving the Representation of Subsurface Water Movement in Land Models, JOURNAL OF HYDROMETEOROLOGY, Vol: 20, Pages: 2401-2418, ISSN: 1525-755X
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- Citations: 10
Mantyka-Pringle C, Leston L, Messmer D, et al., 2019, Antagonistic, synergistic and direct effects of land use and climate on Prairie wetland ecosystems: Ghosts of the past or present?, DIVERSITY AND DISTRIBUTIONS, Vol: 25, Pages: 1924-1940, ISSN: 1366-9516
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- Citations: 9
Costa D, Pomeroy J, Baulch H, et al., 2019, Using an inverse modelling approach with equifinality control to investigate the dominant controls on snowmelt nutrient export, HYDROLOGICAL PROCESSES, Vol: 33, Pages: 2958-2977, ISSN: 0885-6087
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- Citations: 6
Yassin F, Razavi S, Elshamy M, et al., 2019, Representation and improved parameterization of reservoir operation in hydrological and land-surface models, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 23, Pages: 3735-3764, ISSN: 1027-5606
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- Citations: 71
Rokaya P, Morales-Marin L, Bonsal B, et al., 2019, Climatic effects on ice phenology and ice-jam flooding of the Athabasca River in western Canada, HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES, Vol: 64, Pages: 1265-1278, ISSN: 0262-6667
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- Citations: 22
Rokaya P, Peters DL, Bonsal B, et al., 2019, Modelling the effects of climate and flow regulation on ice-affected backwater staging in a large northern river, RIVER RESEARCH AND APPLICATIONS, Vol: 35, Pages: 587-600, ISSN: 1535-1459
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- Citations: 15
Rokaya P, Wheater H, Lindenschmidt K-E, 2019, Promoting Sustainable Ice-Jam Flood Management along the Peace River and Peace-Athabasca Delta, JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT, Vol: 145, ISSN: 0733-9496
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- Citations: 20
Costa D, Pomeroy J, Wheater H, 2018, A numerical model for the simulation of snowpack solute dynamics to capture runoff ionic pulses during snowmelt: The PULSE model, Advances in Water Resources, Vol: 122, Pages: 37-48, ISSN: 0309-1708
© 2018 Elsevier Ltd Early ionic pulse during spring snowmelt can account for a significant portion of the total annual nutrient load in seasonally snow-covered areas. Ionic pulses are a consequence of snow grain core to surface ion segregation during metamorphism, a process commonly referred to as ion exclusion. While numerous studies have provided quantitative measurements of this phenomenon, very few process-based mathematical models have been proposed for diagnostic and prognostic investigations. A few early modelling attempts have been successful in capturing this process assuming transport through porous media with variable porosity. However, this process is represented in models in ways that misalign with the mechanistic view of the process described in the literature. In this research, a process-based model is proposed that can simulated ionic pulses in runoff by emulating solute leaching from snow grains during melt and the subsequent vertical solute transport by meltwater through the snowpack. To facilitate its use without the need for snow-physics’ models, simplified alternative methods are proposed to estimate some of the variables required by the model. The model was applied to two regions, and a total of 4 study sites, that are subject to significantly different winter climatic and hydrological conditions. Comparison between observations and simulation results suggest that the model can capture well the overall snow melt runoff concentration pattern, including both the timing and magnitude of the early melt ionic pulse. The model enables the prediction of concentration profiles of the dry (snow) and liquid (wet) fractions within the snow matrix for the first time. Although there is a computational cost associated with the proposed modelling framework, this study demonstrates that it can provide more detailed information about the reallocation and transport of ions through snowpacks, which can ultimately be used to improve nutrient transport p
Morales-Marín L, Wheater H, Lindenschmidt KE, 2018, Potential changes of annual-averaged nutrient export in the South Saskatchewan River Basin under climate and land-use change scenarios, Water (Switzerland), Vol: 10
© 2018 by the author. Climate and land-use changes modify the physical functioning of river basins and, in particular, influence the transport of nutrients from land to water. In large-scale basins, where a variety of climates, topographies, soil types and land uses co-exist to form a highly heterogeneous environment, a more complex nutrient dynamic is imposed by climate and land-use changes. This is the case of the South Saskatchewan River (SSR) that, along with the North Saskatchewan River, forms one of the largest river systems in western Canada. The SPAtially Referenced Regression On Watershed (SPARROW) model is therefore implemented to assess water quality in the basin, in order to describe spatial and temporal patterns and identify those factors and processes that affect water quality. Forty-five climate and land-use change scenarios comprehended by five General Circulation Models (GCMs) and three Representative Concentration Pathways (RCPs) were incorporated into the model to explain how total nitrogen (TN) and total phosphorus (TP) export could vary across the basin in 30, 60 and 90 years from now. According to model results, annual averages of TN and TP export in the SSR are going to increase in the range 0.9-1.28 kg km-2 year-1 and 0.12-0.17 kg km-2 year-1, respectively, by the end of the century, due to climate and land-use changes. Higher increases of TP compared to TN are expected since TP and TN are going to increase ~36% and ~21%, respectively, by the end of the century. This research will support management plans in order to mitigate nutrient export under future changes of climate and land use.
Marsh CB, Spiteri RJ, Pomeroy JW, et al., 2018, Multi-objective unstructured triangular mesh generation for use in hydrological and land surface models, COMPUTERS & GEOSCIENCES, Vol: 119, Pages: 49-67, ISSN: 0098-3004
Xu L, Gober P, Wheater HS, et al., 2018, Reframing socio-hydrological research to include a social science perspective, JOURNAL OF HYDROLOGY, Vol: 563, Pages: 76-83, ISSN: 0022-1694
Sapriza-Azuri G, Gamazo P, Razavi S, et al., 2018, On the appropriate definition of soil profile configuration and initial conditions for land surface-hydrology models in cold regions, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 22, Pages: 3295-3309, ISSN: 1027-5606
Asong ZE, Wheater HS, Bonsal B, et al., 2018, Historical drought patterns over Canada and their teleconnections with large-scale climate signals, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 22, Pages: 3105-3124, ISSN: 1027-5606
Sadeghian A, Chapra SC, Hudson J, et al., 2018, Improving in-lake water quality modeling using variable chlorophyll a/algal biomass ratios, Environmental Modelling and Software, Vol: 101, Pages: 73-85, ISSN: 1364-8152
© 2017 Elsevier Ltd Algal simulations in many water quality models perform poorly because of oversimplifications in the process descriptions of the algae growth mechanisms. In this study, algae simulations were improved by implementing variable chlorophyll a/algal biomass ratios in the CE-QUAL-W2 model, a sophisticated two-dimensional laterally-averaged water quality model. Originally a constant in the model, the chlorophyll a/algal biomass ratio was reprogrammed to vary according to the nutrient and light limiting conditions in the water column. The modified model was tested on Lake Diefenbaker, a prairie reservoir in Saskatchewan, Canada, where, similar to many other lakes in the world, field observations confirm variable spatiotemporal ratios between chlorophyll a and algal biomass. The modified version yielded more accurate simulations compared to the standard version and provides a promising algorithm to improve results for many lakes and reservoirs globally.
Morales-Marin LA, Wheater HS, Lindenschmidt KE, 2018, Estimating Sediment Loadings in the South Saskatchewan River Catchment, WATER RESOURCES MANAGEMENT, Vol: 32, Pages: 769-783, ISSN: 0920-4741
Hornherger GM, Bradbury KR, Chin Y-P, et al., 2018, FUTURE WATER PRIORITIES FOR THE NATION Directions for the US Geological Survey Water Mission Area Preface, FUTURE WATER PRIORITIES FOR THE NATION: DIRECTIONS FOR THE U.S. GEOLOGICAL SURVEY WATER MISSION AREA, Publisher: NATL ACADEMIES PRESS, Pages: IX-+
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