Publications

Articles in Refereed Journals
Articles Submitted to Refereed Journals
Chapters in Books
Peer-reviewed Technical Reports
Conference Papers
Conference Presentations

Articles in Refereed Journals

41. Jahanpour, M., B. A. Tolson, and J. Mai. PADDS Algorithm Assessment for Bi-objective Water Distribution System Benchmark Design Problems. Accepted on July 25, 2017 in ASCE Journal of Water Resources Planning and Management.

40. Xu, X., B. A. Tolson, J. Li, and B. Davison (2017). Assimilation of Synthetic Remotely-Sensed Soil Moisture in Environment Canada's MESH Model. Accepted on 27 Oct, 2016 in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 10 (4), 10.1109/JSTARS.2016.2626256

39. Liu, H., B. A. Tolson, J. R. Craig and M. Shafii. A priori discretization error metrics for distributed hydrologic modeling applications. Accepted, Nov 2016 in Journal of Hydrology. 10.1016/j.jhydrol.2016.11.008

38. Gaborit, É., T. Hunter, L. Fry, D. Durnford, V. Fortin, D. Gronewold, D. and B. A. Tolson (In Press). Great Lakes Runoff Inter-comparison Project, Phase 2: Lake Ontario (GRIP-O). Accepted Oct 2016 in Journal of Great Lakes Research.

37. Khedr, A. and B. A. Tolson (2015), Comparing Optimization Techniques with an Engineering Judgment Approach to WDN Design.J. Water Res. Pl.-ASCE.10.1061/(ASCE)WR.1943-5452.0000611

36. Xu, X., B. A. Tolson, J. Li, R. M. Staebler, F. Seglenieks, A. Haghnegahdar, B. Davison (2015), Assimilation of SMOS soil moisture over the Great Lakes basin, Remote Sens. Environ., 169, 163-175, 10.1016/j.rs.2015.08.017

35. Haghnegahdar, A., B. A. Tolson, J. R. Craig and K. T. Pay (2015), Assessing the performance of a semi-distributed hydrological model under various watershed discretization schemes. Hydrological Processes. 10.1002/hyp.10550

34. Shafii, M. H., and B. A. Tolson (2015), Optimizing Hydrological Consistency by Incorporating Hydrological Signatures into Model Calibration Objectives. Water Resources Research. 10.1002/2014WR016520

33. Shafii, M. H., B. A. Tolson and L. S. Matott (2015), Improving the efficiency of Monte Carlo Bayesian calibration of hydrologic models via model pre-emption. Journal of Hydroinformatics. 10.2166/hydro.2015.043

32. Shafii, M., B. A. Tolson, and L. S. Matott (2015), Addressing Subjective Decision-Making Inherent in GLUE-based Multi-Criteria Rainfall-Runoff Model Calibration, Journal of Hydrology. 10.1016/j.jhydrol.2015.01.051

31. Asadzadeh M., B. A. Tolson and D. H. Burn (2014), A new selection metric for multiobjective hydrologic model calibration, Water Resour. Res., 50, 7082–7099, 10.1002/2013WR014970.

30. Delisle, F.-J., S. Rochette , G. Pelletier, M. Asadzadeh, B. A. Tolson, M. Rodriguez (2015), Minimizing Water Residence Time in Quebec City's Main Distribution Network Using Hybrid Discrete Dynamically Dimensioned Search (HDDDS). PART II. Journal of Water Supply: Research and Technology – AQUA10.2166/aqua.2014.054.

29. Haghnegahdar, A., B. A. Tolson, B. Davison, F. Seglenieks, E. Klyszejko, E.D. Soulis, V. Fortin and L.S. Matott (2014), Calibrating the Environment Canada’s MESH Modeling System over the Great Lakes Basin. Atmosphere-Ocean, 52(4), 281-293, 10.1080/07055900.2014.939131.

28. Xu, X., J. Li, and B. A. Tolson (2014), Progress in integrating remote sensing data and hydrologic modeling, Progress in Physical Geography, 10.1177/0309133314536583.

27. Shafii, M., B. Tolson, and L. Matott (2014), Uncertainty-based multi-criteria calibration of rainfall-runoff models: a comparative study, Stoch. Environ. Res. Risk. Assess., 28(6), 1493-1510. 10.1007/s00477-014-0855-x

26. Esmaeili, S., N. R. Thomson, B. A. Tolson, B. J. Zebarth, S. H. Kuchta, and D. Neilsen (2014), Quantitative global sensitivity analysis of the RZWQM to warrant a robust and effective calibration, Journal of Hydrology, 511, 567-579.10.1016/j.jhydrol.2014.01.051

25. Asadzadeh, M., S. Razavi, B. A. Tolson, and D. Fay (2014), Pre-emption strategies for efficient multi-objective optimization: Application to the development of Lake Superior regulation plan, Environmental Modelling & Software, 54, 128-141.10.1016/j.envsoft.2014.01.005

24. Razavi, S., and B. A. Tolson (2013), An efficient framework for hydrologic model calibration on long data periods, Water Resour. Res., 49, 8418–8431, 10.1002/2012WR013442.

23. Marchi, A., … 56 other authors, … B. A. Tolson, A. Khedr, and M. Asadzadeh (2013), The Battle of the Water Networks II (BWN-II), J. Water Resour. Plann. Manage., 10.1061/(ASCE)WR.1943-5452.0000378.

22. Razavi, S., Asadzadeh, M., Tolson, B., Fay, D., Moin, S., Bruxer, J., and Fan, Y. (2013). Evaluation of New Control Structures for Regulating the Great Lakes System: A Multi-Scenario, Multi-Reservoir Optimization Approach. J. Water Resour. Plann. Manage., 10.1061/(ASCE)WR.1943-5452.0000375.

21. Asadzadeh, M. and B. A. Tolson (2013), Pareto archived dynamically dimensioned search with hypervolume-based selection for multi-objective optimization, Engineering Optimization. 10.1080/0305215X.2012.748046.

20. Razavi, S., B. A. Tolson and D. H. Burn (2012), Review of surrogate modeling in water resources, Water Resources Research, 48, W07401, 10.1029/2011WR011527. (Recipient of WRR Editors’ Choice Award and AGU Research Spotlight).

19. Nettasana, T., J. R. Craig and B. A. Tolson (2012), Conceptual and numerical model for sustainable groundwater management in the Tha Phra Area, Chi River Basin, Thailand, Hydrogeology Journal, 20, 1355–1374. 10.1007/s10040-012-0887-6.

18. Matott, L. S., B. A. Tolson and M. Asadzadeh, (2012), A benchmarking framework for simulation-based optimization of environmental models, Environmental Modelling and Software, 35, 19-30. 10.1016/j.envsoft.2012.02.002.

17. Razavi, S. S., B. A. Tolson and D. H. Burn (2012), Numerical assessment of metamodelling strategies in computationally intensive optimization, Environmental Modelling and Software. 34(0), 67-86. 10.1016/j.envsoft.2011.09.010.

16. Ostfeld, A., … 40 other authors … , M. Asadzadeh, B. A. Tolson, and R. McKillop (2012), The Battle of the Water Calibration Networks (BWCN). ASCE Journal of Water Resources Planning and Management, 138(5), pp. 523-532. 10.1061/(ASCE)WR.1943-5452.0000191.

15. Razavi, S. S. and B. A. Tolson (2011), A new formulation for feed-forward neural networks, IEEE Transactions on Neural Networks, 22(10), 1588-1598. 10.1109/TNN.2011.2164096

14. Asadzadeh, M. and B. A. Tolson (2012), Hybrid Pareto Archived Dynamically Dimensioned Search for Multi-Objective Combinatorial Optimization: Application to Water Distribution Network Design, Journal of Hydroinformatics, 14(1), pp 192-205. 10.2166/hydro.2011.098.

13. Yung, B. B., B. A. Tolson and D. H. Burn (2011), Risk Assessment of a Water Supply System under Climate Variability: A Stochastic Approach. Canadian Journal of Civil Engineering, 38, 252-262. 10.1139/L10-132.

12. Razavi, S., B. A. Tolson, L. S. Matott, N. R. Thomson, A. MacLean, and F. Seglenieks (2010), Reducing the computational cost of automatic calibration via model pre-emption, Water Resources Research, 46, W11523, 10.1029/2009WR008957.

11. Kuta, R. W., W. K. Annable, and B. A. Tolson (2010), Sensitivity of Field Data Estimates in One-Dimensional Hydraulic Modeling of Channels, Journal of Hydraulic Engineering, 136(6), 379-384.10.1061/(ASCE)HY.1943-7900.0000187

10. Sim, H. P., D. H. Burn, and B. A. Tolson (2009), Probabilistic design of a riverine early warning source water monitoring system, Canadian Journal of Civil Engineering, 36(6), 1095-1106.10.1139/L09-041

9. Tolson, B. A., M. Asadzadeh, H. R. Maier, and A. Zecchin (2009), Hybrid discrete dynamically dimensioned search (HD-DDS) algorithm for water distribution system design optimization, Water Resources Research, 45, W12416, 10.1029/2008WR007673.

8. Dornes, P. F., B. A. Tolson, B. Davison, A. Pietroniro, and J. W. Pomeroy (2008), Regionalisation of land surface hydrological model parameters in subarctic and arctic environments, Physics and Chemistry of the Earth, Parts A/B/C, 33(17-18), 1081-1089, 10.1016/j.pce.2008.07.007.

7. Tolson, B. A., and C. A. Shoemaker (2008), Efficient prediction uncertainty approximation in the calibration of environmental simulation models, Water Resources Research, 44, W04411, 10.1029/2007WR005869.

6. Tolson, B. A., and C. A. Shoemaker (2008), Reply to comment on “Dynamically dimensioned search algorithm for computationally efficient watershed model calibration” by Ali Behrangi et al., Water Resources Research, 44, W12604, 10.1029/2008WR006862.

5. Tolson, B. A. and C. A. Shoemaker (2007), Cannonsville Reservoir Watershed SWAT2000 model development, calibration and validation, Journal of Hydrology, 337, 68– 86.10.1016/j.jhydrol.2007.01.017.

4. Tolson, B. A. and C. A. Shoemaker (2007), Dynamically dimensioned search algorithm for computationally efficient watershed model calibration, Water Resources Research, 43, W01413, 10.1029/2005WR004723.

3. Tolson, B. A., H. R. Maier, A. R. Simpson and B. J. Lence (2004). Genetic Algorithms for reliability-based optimization of water distribution systems. ASCE Journal of Water Resources Planning and Management, 130(1), 63-72. 10.1061/(ASCE)0733-9496(2004)130:1(63)

2. Maier, H. R., B. J. Lence, B. A. Tolson and R. O. Foschi (2001), First-order reliability method for estimating reliability, vulnerability and resilience, Water Resources Research, 37(3), 779-790.10.1029/2000WR900329

1. Vasquez, J. A., H. R. Maier, B. J. Lence, B. A. Tolson and R. O. Foschi (2000), Achieving water quality system reliability using genetic algorithms, ASCE Journal of Environmental Engineering, 126(10), 954-962. 10.1061/(ASCE)0733-9372(2000)126:10(954)

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Articles Submitted to Refereed Journals

2. Gaborit, E., V. Fortin, X. Xu, F. Seglenieks, B. A. Tolson, L. Fry, T. Hunter, F. Anctil and A. Gronewold. A Hydrological Prediction System Based on the SVS Land-Surface Scheme: Implementation and Evaluation of the GEM-Hydro platform on the watershed of Lake Ontario. Submitted Sept, 2016 to Hydrology and Earth System Sciences Discussions.

1. Craig, J. R., W. Jenkinson, G. Jost, M. Serrer, A. P. Snowdon, N. Sgro, M. Shafii, and B. A. Tolson. Flexible watershed simulation with the Raven hydrological modeling framework. Submitted April 2016 to Environmental Modelling and Software.


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Chapters in Books

Maier, H. R. and B. A. Tolson (2008). “Sensitivity and Uncertainty”. In Sven Erik Jørgensen and Brian D. Fath (Editor-in-Chief), Ecological Models. Vol. [4] of Encyclopedia of Ecology, 5 vols. pp. [3214-3221] Oxford: Elsevier.

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Peer-reviewed Technical Reports

Tolson, B. A., S. S. Razavi and M. Asadzadeh (2011), Formulation and Evaluation of New Control Structures in the Great Lakes System. Technical Report produced for the IUGLS International Joint Commission Study. 81 pages. Nov, 9, 2011. Download Report PDF

Tolson, B. A., M. Asadzadeh and S. S. Razavi (2011), “Chapter 3: Restoration Modelling”. In G. Stakhiv and S. Moin (Editors), Options for Restoring Lake Michigan-Huron Water Levels: An Exploratory Analysis. pp. 17-35. International Upper Great Lakes Study Technical Report. May 26, 2011. Download Report PDF

Tolson, B. A. (2009), Rationalizing the Decline in Lake Michigan-Huron Water Levels Using the Coordinated Great Lakes Routing & Regulation Model. Technical Report produced for the IUGLS International Joint Commission Study. 35 pages. Nov. 9, 2009. Download Report PDF

Tolson, B. A. and Shoemaker, C. A. (2004), Watershed modeling of the Cannonsville Basin using SWAT2000. Model development, calibration and validation for the prediction of flow, sediment and phosphorus transport to the Cannonsville Reservoir. Version 1.0, Technical Report, School of Civil and Environmental Engineering, Cornell University. 157 pages. Download Report PDF

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Conference Papers (with at least abstract refereed)

Khedr, A., B. Tolson, S. Ziemann (2015), Water distribution system calibration: Manual versus optimization-based approach, Procedia Engineering, Volume 119, Pages 725-733, Computing and Control for the Water Industry (CCWI2015) Sharing the best practice in water management http://dx.doi.org/10.1016/j.proeng.2015.08.926. (Second Best Paper Award out of ~150 papers)

Xu, X., Li, J., Tolson, B.A., Staebler, R.M., Seglenieks, F.; Davison, B., Haghnegahdar, A., Soulis, E.D. (2014). "Assimilation of SMOS soil moisture in the MESH model with the ensemble Kalman filter," Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, pp.3766,3769, 13-18 July 2014. doi: 10.1109/IGARSS.2014.6947303

Tolson, B. A., Khedr, A. (2014) “Battle of Background Leakage Assessment for Water Networks (BBLAWN): an Incremental Savings Approach”, In: 16th International Conference on Water Distribution Systems Analysis, WDSA2014. Bari, Italy, 14-17 July 2014, PROCEDIA ENGINEERING, vol. 89, pp. 69-77. doi: 10.1016/j.proeng.2014.11.161 (Placed 3rd out of 14 teams)

Tolson, B. A., A. Khedr and Asadzadeh M. (2012). The battle of the water networks (BWN-II): PADDS based solution approach. Proceedings of the WDSA 2012 Conference. Adelaide, Australia. Sept 24-27. (Best Paper Presentation Award, placed 2nd of 14 teams)

Asadzadeh, M. and B. A. Tolson (2012). Assessing the impact of alternative pipe groupings on multiobjective water distribution network calibration. Proceedings of the WDSA 2012 Conference. Adelaide, Australia. Sept 24-27.

Asadzadeh M., B. A. Tolson, and R. McKillop (2010). A two stage optimization approach for calibrating water distribution systems. Proceedings of the 12th water distribution systems analysis symposium, Lansey K., Choi C., Ostfeld A., and Pepper I. (Eds.), ASCE publication, Tucson, AZ.

Razavi, S. and B. A. Tolson (2009), Application of Dynamically Dimensioned Search (DDS) Algorithm in Neural Network Optimization, 33rd IAHR Congress. Water Engineering for a Sustainable Environment, Vancouver, BC, August 10-14, 2009.

Asadzadeh M. and B. A. Tolson (2009). A new multi-objective algorithm, Pareto Archived DDS. In Proceedings of the 11th Annual Conference Companion on Genetic and Evolutionary Computation Conference: Late Breaking Papers (GECCO '09), 8-12 July 2009, Montreal, QC, Canada. ACM, New York, NY, USA. pp. 1963-1966.

Tolson, B. A., M. Asadzadeh Esfahani, H. R. Maier and A. Zecchin (2008), A New Algorithm for Water Distribution System Optimization: Discrete Dynamically Dimensioned Search, World Environmental & Water Resources Congress 2008, Honolulu, Hawaii. May 13-16, 2008.

Mustard, H., B. Tolson and D. H. Burn (2007), Sources of Uncertainty Affecting the Design of an Early Warning Source Water Monitoring Station, 18th Canadian Hydrotechnical Conference, Winnipeg, Manitoba, Canada, August 22-24.

Tolson, B. A., V. Sharma, D. Swayne and L. Fan (2007), A parallel implementation of the Dynamically Dimensioned Search (DDS) algorithm, International Symposium on Environmental Software Systems (ISESS) 2007. Prague, Czech Republic. May 22 - 25, 2007.

Tolson, B. A. and Shoemaker, C. A. (2005), Comparison of optimization algorithms for the automatic calibration of SWAT2000. 2005 3rd International SWAT Conference Proceedings, edited by Srinivasan et al., Zurich, Switzerland, July 13-15, 2005. pg 210-220.

Tolson, B. A. and Shoemaker, C. A. (2003), Future Phosphorus Loading to the Cannonsville Reservoir, 2003 World Water and Environmental Congress, Philadelphia, Pennsylvania, USA, June 23-26. Proceedings on CD-ROM.

Maier, H. R., Lence, B. J. and Tolson, B. A. (2002), The role of reliability, vulnerability and resilience in the management of water quality systems, 27th Hydrology and Water Resources Symposium, The Institution of Engineers, Australia, Melbourne, Australia, May 20-23.

Tolson, B. A., Maier, H. R. and Simpson, A. R. (2001), Reliability based optimization of water distribution systems using genetic algorithms, World Water & Environmental Resource Congress, Orlando, Florida, May 20-24. Proceedings on CD-ROM. (Paper, Presentation) Tolson, B. A., and Lence, B. J. (2000), Genetic algorithms for reliability-based optimization in water quality management, Annual Conference of The Canadian Society for Civil Engineering, London, Ontario. June 7-10. Proceedings on CD-ROM.

Tolson, B. A., Maier, H. R. and Lence, B. J. (1999), An application of first and second order reliability methods for estimating reliability, resilience and vulnerability in water quality management, Proceedings of the Conference of the Canadian Water Resources Association, Confronting Uncertainty: Managing Change in Water Resources and the Environment, Vancouver, BC, October 27-29, pp.175-180.

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Conference Presentations (abstract refereed, no paper)

Tolson, B. A., L. S. Matott, T. Gaffoor, M. Asadzadeh, M. Shafii, X. Xu, P. Pomorski, S. Razavi, A. Hagnegahdar, M. Jahanpour and J. R. Craig (2015), Parallel and Preemptable Dynamically Dimensioned Search Algorithms for Single and Multi-objective Optimization in Water Resources (Invited talk), AGU Fall Meeting, December 14-18, 2015, San Francisco, California, USA.

Tolson, B. A., E. Gaborit, D. Gronewold, V. Fortin, L. Fry and T. Hunter (2015), The Great Lakes Runoff Intercomparison Project (GRIP): Phase II, Lake Ontario, AGU Fall Meeting, December 14-18, 2015, San Francisco, California, USA.

Hill, M. C., J. Jakeman, S. Razavi and B. A. Tolson, (2015), Beauty and the beast: Some perspectives on efficient model analysis, surrogate models, and the future of modeling, AGU Fall Meeting, December 14-18, 2015, San Francisco, California, USA.

Mai, J., M. Cuntz, M. Zink, D. Schafer, S. Thober, L. Samaniego, M. Shafii, B. Tolson, (2015), Multi-Objective vs. Single Objective Calibration of a Hydrologic Model using Either Different Hydrologic Signatures or Complementary Data Sources, AGU Fall Meeting, December 14-18, 2015, San Francisco, California, USA.

Gaborit, E., T. Hunter, L. Fry, D. Durnford, V. Fortin, D. Gronewold, B. A. Tolson, (2015), Great-Lakes Runoff Inter-comparison Project for Lake Ontario (GRIP-O). 58th Annual Conference on Great Lakes Research: IAGLR 2015, May 25-29, 2015, Burlington, Vermont, USA.

Haghnegahdar, A.*, B. Tolson, E. Gaborit, V. Fortin (2015), Streamflow Prediction in the Great Lakes Basin Using Two Watershed Discretization Schemes, AGU-GAC-MAC-CGU Joint Assembly, Montreal, Qubec , 3-7 May 2015.

Asadzadeh M., B. A. Tolson and D. Burn (2014), A New Selection Metric for Multi-Objective Hydrologic Model Calibration. AGU Fall Meeting, December 15-19, 2014, San Francisco, California, USA.

Shafii, M. and B. A. Tolson (2014), Many-Criterion Calibration of Hydrologic Models Using Hydrological Signatures. AGU Fall Meeting, December 15-19, 2014, San Francisco, California, USA.

Haghnegahdar, A., B. A. Tolson, J. R. Craig (2014), A Novel Framework to Assess Various Watershed Discretization Schemes in Distributed Models. 2014 Canada Water Resources Congress, June 2-4, Hamilton, ON.

Shafii, M., and B. A. Tolson (2014), Enhancing Calibration and Uncertainty Analysis in Rainfall-Runoff Modeling through Multi-Objective Optimization. 2014 Canada Water Resources Congress, June 2-4, Hamilton, ON.

Haghnegahdar, A. and B. A. Tolson (2014), Comparing Discretization Schemes for Flow Predictions of the Environment Canada’s MESH modeling system over the Great Lakes Basin, Canadian Geophysical Union Hydrology and Biogeosciences Sections, Eastern Student Conference, University of Toronto, 18 January 2014.

Haghnegahdar, A., B. Tolson, J. Craig, and K.T. Paya (2013), Assessing the Performance of a Distributed Land-Surface Hydrological Model (MESH) under various Watershed Discretization Schemes, Joint Scientific Congress of the CMOS, CGU and CWRA, Saskatoon, SK, May 26-30, 2013.

Shafii, M., Tolson, B., Matott, L. S. (2013), Developments on informal approaches to multi-criteria calibration and uncertainty analysis of hydrologic models, 2013 American Geosciences Union Fall Meeting, San Francisco, USA, December 9-16, 2013.

Xu, X., J. Li, B. Tolson (2013), Assimilation of remotely sensed soil moisture in land surface/hydrological models. 2013 CIG/EOGC, Toronto, ON, 5-7 June 2013.

Xu, X., J. Li, B. Tolson (2013), Assimilation of SMOS soil moisture in the MESH hydrological model. 2013 CAG Annual Meeting, St. John’s, Newfoundland, 11-15 August 2013.

Asadzadeh, M., S. S. Razavi, B. A. Tolson, D. Fay, and W. Werick (2012), A New Rule Curve Based Regulation Plan for Lake Superior, International Association for Great Lakes Research Conference, Cornwall, ON, May 13-17, 2012.

Craig, J.R., A. Snowdon, B.A. Tolson (2012), A framework for evaluating the net impact of algorithm decisions on hydrological model output: Numerical and conceptual abstractions, Computational Methods in Water Resources (CMWR) 2012 International Conference, June 21-24, Urbana-Champaign, Illinois. (Invited presentation)

Craig, J.R., A. Snowdon, B.A. Tolson (2012), Using a flexible hydrologic modelling framework to test the impact of model decisions, CGU-CWRA National Conference, Jun 5-8, 2012, Banff, Alberta.

Haghnegahdar, A., B. A. Tolson, E. D. Soulis, B. Davison, V. Fortin, F. Seglenieks and E. Klyszejko (2012), Comparing two strategies for calibration of the Environment Canada’s MESH modeling system over the Great Lakes Basin, 2012 American Geophysical Union Fall Meeting, San Francisco, CA, December 3-7.

Princz, D., J.R. Craig, and B.A. Tolson (2012), The impact of parameter granularity of the land surface on the predictive capacity of fully distributed, physically-based models, CMOS/AMS Congress 2012, May 29-Jun 1, Montreal, Quebec.

Razavi, S. S., M. Asadzadeh, B. A. Tolson, D. Fay, S. Moin, J. Bruxer, and Y. Fan (2012), Evaluation of New Control Structures in the Great Lakes for Better Managing Water Levels in Future, International Association for Great Lakes Research Conference, Cornwall, ON, May 13-17, 2012.

Razavi, S., B. A. Tolson, D. A. Burn, and F. Seglenieks (2012), Reformulated Neural Network (ReNN): a New Alternative for Data-driven Modelling in Hydrology and Water Resources Engineering, European Geosciences Union (EGU) General Assembly, Vienna, Austria , April 22-27, 2012.

Razavi, S. and B. A. Tolson (2012), Efficient Auto-Calibration of Computationally Intensive Hydrologic Models by Running the Model on Short Data Periods, European Geosciences Union (EGU) General Assembly, Vienna, Austria, April 22-27, 2012.

Razavi, S., D. Anderson, P. Martin, G. MacMillan, B. A. Tolson, C. Gabriel and B. Zhang (2012), Efficient Calibration of Computationally Intensive Groundwater Models through Surrogate Modelling with Lower Levels of Fidelity, 2012 American Geophysical Union Fall Meeting, San Francisco, CA, December 3-7.

Shafii, M., B. A. Tolson and L. S. Matott (2012), Multi-objective calibration and uncertainty analysis of hydrologic models; A comparative study between formal and informal methods, European Geosciences Union (EGU) General Assembly, Vienna, Austria, April 22-27, 2012.

Haghnegahdar, A., L. S. Matott, B. A. Tolson, (2011), Pre-emption-based Regional Sensitivity Analysis (PeRSA) to increase watershed model calibration efficiency, 2011 American Geophysical Union Fall Meeting, San Francisco, CA, December 5-9.

Asadzadeh M., S. S. Razavi and B. A. Tolson (2011), Multi-objective Lake Superior Regulation, 2011 American Geophysical Union Fall Meeting, San Francisco, CA, December 5-9.

S. S. Razavi, B. A. Tolson and Asadzadeh M. (2011), Developing Multi-Lake Regulation Plans for the Great Lakes through Multi-Scenario Optimization, 2011 American Geophysical Union Fall Meeting, San Francisco, CA, December 5-9.

Craig, J. R., A. P. Snowdon, B. A. Tolson (2011), Determining the "Why's" of Good and Bad Model Performance: Comparing Hydrological Modelling Decisions with the Raven Framework, 2011 American Geophysical Union Fall Meeting, San Francisco, CA, December 5-9.

Asadzadeh M. and B. A. Tolson (2011), Multiobjective Calibration with PA-DDS: Testing Alternative Selection Metrics, World Environmental & Water Resources Congress 2011, Palm Springs, CA, May 21-26.

Razavi, S., B. A. Tolson and D. H. Burn, (2011), Metamodelling: Help or Hindrance in Environmental and Water Resources Modelling?, World Environmental & Water Resources Congress 2011, Palm Springs, CA, May 21-26.

Tolson, B. A., D. Burn and D. Fay (2010), Rationalizing the Recent Decline in Lake Michigan-Huron Water Levels Using the Coordinated Great Lakes Regulation & Routing Model, Water 2010: Hydrology, Hydraulics and Water Resources in an Uncertain Environment, Quebec City, Quebec, July 5-7.

Razavi S. and Tolson, B. A. (2010), Metamodeling in evolutionary versus non-evolutionary optimization algorithms for hydrologic model automatic calibration, Water 2010: Hydrology, Hydraulics and Water Resources in an Uncertain Environment, Quebec City, Quebec, July 5-7.

Razavi S. and Tolson, B. A. (2010), Model Pre-emption in Computationally Constrained Hydrologic Model Automatic Calibration, Student Conference of Canadian Geophysical Union - Hydrologic Section, University of Guelph, Guelph, Ontario, December 4, 2010.

Asadzadeh, M., B. A. Tolson, G. Pelletier, F. J. Delisle and M. J. Rodriguez (2010), Bi-Objective Calibration of Quebec City Water Distribution Network, Water 2010: Hydrology, Hydraulics and Water Resources in an Uncertain Environment, Quebec City, Quebec, July 5-7.

Haghnegahdar, A., B. A. Tolson, F. R. Seglenieks, E. Klyszejko and V. Fortin (2010), Comparing the calibrated performance of the WATFLOOD and MESH distributed hydrlogical models in the Great Lakes Basin, Water 2010: Hydrology, Hydraulics and Water Resources in an Uncertain Environment, Quebec City, Quebec, July 5-7.

Shafii, M., B. A. Tolson, L. S. Matott, J. Vrugt, F. De Smedt (2010), Application of a MCMC sampler (DREAM) for calibration and uncertainty analysis of a distributed rainfall-runoff model (WetSpa), Water 2010: Hydrology, Hydraulics and Water Resources in an Uncertain Environment, Quebec City, Quebec, July 5-7.

Asadzadeh, M., B. A. Tolson, and A. MacLean (2009), A Comparative Study of Multi-Objective Optimization Algorithms for Automatic Calibration, 2009 American Geophysical Union Fall Meeting, San Francisco, CA, Dec. 14-18.

Razavi, S., B. A. Tolson, L. S. Matott, M. Asadzadeh, and F. Seglenieks (2009), A simple non-invasive efficiency improvement for hydrologic model calibration, 2009 American Geophysical Union Fall Meeting, San Francisco, CA, Dec. 14-18.

Shafii, M., J. Vrugt, B. Tolson, and L. S. Matott (2009), Enhancing multi-objective evolutionary algorithm performance with Markov Chain Monte Carlo, 2009 American Geophysical Union Fall Meeting, San Francisco, CA, USA, Dec. 14-18.

Matott, L. S., Tolson, B. A. and Razavi, S. (2009), Forecasting subsurface model performance during simulation-based optimization, SIAM Conference on Mathematical & Computational Issues in the Geosciences, Leipzig, Germany, June 15–18, 2009.

Asadzadeh, M., MacLean, A., Tolson, B. A., Burn, D. H. (2009), Hydrologic Model Development and Calibration: Contrasting a Single- and Multi-Objective Approach for Comparing Model Performance, 2009 American Geophysical Union Joint Assembly, Toronto, Ontario, May 24-29.

Razavi, S., B. A. Tolson, L. Matott and A. MacLean (2009), Forecasting Hydrologic Model Prediction Errors During Calibration, 2009 American Geophysical Union Joint Assembly, Toronto, Ontario, Canada, May 24-29.

Nettasana, T., J. R. Craig, B. A. Tolson, and J. Sykes (2009), The development of multiple conceptual models for the high risk saline water upconing area in the Chi River Basin, Thailand, 2009 American Geophysical Union Joint Assembly, Toronto, Ontario, Canada, May 24-29.

Thomson, N. R., G. N. Roos, R. D. Wilson, S. F. Thornton and B. Tolson (2008), The Dipole Flow and Reactive Tracer Test for Aquifer Parameter Estimation, American Geophysical Union 2008 - Fall Meeting, San Francisco, CA, Dec. 10-14.

Tolson, B. A., J. R. Craig and M. Asadzadeh Esfahani (2007), Incorporating Search History into the Dynamically Dimensioned Search (DDS) Optimization Algorithm, American Geophysical Union 2007 - Fall Meeting, San Francisco, CA, Dec. 10-14.

Dornes, P., Davison, B., Peitroniro, A., Tolson. B., Soulis, E., Marsh, P., and Pomeroy, J. (2007), Calibration of a Land Surface Hydrology Scheme in Arctic Environments, IUGG-IAHS XXIV 2007 General Assembly. Perugia, Italy. July 8-13.

Steenhuis, T., Shoemaker, C. A., Easton, Z., Stedinger, J.R., Lyon, S., Rao, N., Cowan, D., Fuka, D., Flores-Lopez, F. and Tolson, B. A. (2006), Integrating data and models in the Catskills to assess effectiveness of Phosphorus BMP’s, USDA – CSREES 2006 National Water Conference Proceedings, San Antonio, Texas, USA, February 5-9.

Tolson, B. A. and Shoemaker, C. A. (2006), The Dynamically Dimensioned Search (DDS) Algorithm as a robust optimization tool in hydrologic modeling, American Geophysical Union 2006 - Fall Meeting, San Francisco, CA, USA, Dec. 11-15.

Tolson, B. A. and Shoemaker, C. A. (2006), Using Optimization for Environmental Simulation Model Calibration Uncertainty Analysis, Summit on Environmental Modelling and Software, International Environmental Modelling and Software Society. Burlington, USA, July 9-13, 2006.

Tolson, B. A., Shoemaker, C. A. and Méndez, F. J. (2003), Comparison of Optimization Algorithms for the Automatic Calibration of a Watershed Model to Measured Flow, Sediment and Phosphorus Data, American Geophysical Union 2003 - Fall Meeting, San Francisco, CA, USA, Dec. 8-12.

Tolson, B. A. and Shoemaker, C. A. (2002), Calibration of the SWAT2000 watershed model for phosphorus loading to the Cannonsville Reservoir, American Geophysical Union 2002 Fall Meeting, San Francisco, CA, USA, Dec. 6-10.



Updates

Amin and I (and Masoud) ranked 3rd place in the EMO'2017 Real-world Multiobjective Problems Track optimization competition.

2017 Jan

Congratulations to Hongli for passing her PhD comprehensive exam.

2016 Sept

Welcome Julie and Konhee to the research team!

2016 July

Amin and I (and Masoud) ranked 1st place in the GECCO 2016 2-OBJ expensive Track multi-objective optimization competition.