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Nora Casson

Geography


Nora Casson Title: Associate Professor, Canada Research Chair in Environmental Influences on Water Quality
Office: 2RC022
Building: Richardson College for the Environment
Phone: (204) 258-3052
Email: n.casson@uwinnipeg.ca

Teaching Areas:
Biogeochemistry
Catchment hydrology
Ecosystem ecology

Courses:

GEOG-2218(3) Fluvial and Slope Processes
GEOG-3210(3) Hydrology
GEOG-3218(3) Global BioGeochemical Cycles
GEOG-3330(3) Research Methods in Geography

Research Interests:

Hydrological controls on stream nutrient export.
Landscape controls on stream and lake chemistry.
Interactions between hydrological and biogeochemical processes across ecosystems.

Publications:

Orihel, D. M., H. M. Baulch, N. J. Casson, R. L. North, C. T. Parsons, D. C. Seckar, and J. J. Venkiteswaran, J. J. 2017. Internal phosphorus loading in Canadian fresh waters: a critical review and data analysisCanadian Journal of Fisheries and Aquatic Sciences 74(12): 2005–2029.

Enanga, E. M., N.J. Casson, T. Fairweather, and I. F. Creed. 2017. Nitrous oxide and dinitrogen: The missing flux in nitrogen budgets of forested catchments? Environmental Science and Technology 51(11): 6036–6043.

Crossman, J., M. C. Eimers, N. J. Casson, D. A. Burns, J. L. Campbell, G. E. Likens, M. J. Mitchell, S. J. Nelson, J. B. Shanley, S. A. Watmough, and K. L. Webster. 2016. Regional meteorological drivers and long term trends on winter-spring nitrate dynamics across watersheds in northeastern North America. Biogeochemistry 130(3): 247–265.

Enanga, E. M., I. F. Creed, T. Fairweather, and N. J. Casson. 2016. Snow covered soils produce N2O that is lost from forested catchments prior to snowmelt. Journal of Geophysical Research – Biogeosciences 121: 2356–2368

Stanley, E. H., N. J. Casson, S. T. Christel, J. T. Crawford, L. C. Loken, and S. K. Oliver. 2016. The ecology of methane in streams and rivers: patterns, controls, and global significance. Ecological Monographs 86(2): 146–171.

Enanga, E. M., I. F. Creed, N. J. Casson, and F. D. Beall. 2016. Summer storms trigger soil N2O efflux episodes in forested catchments. Journal of Geophysical Research – Biogeosciences 121: 95-108.

Crawford, J. T., L. C. Loken, N. J. Casson, C. Smith, A. G. Stone, and L. A. Winslow.  2015. High-speed limnology: Using advanced sensors to investigate spatial variability in biogeochemistry and hydrology. Environmental Science and Technology 49(1): 442–450.

Casson, N. J., M. C. Eimers, and S. A. Watmough. 2014. Controls on soil nitrification and stream nitrate export at two forested catchments. Biogeochemistry 121(2): 355–368.

Casson, N. J., M. C. Eimers, and S. A. Watmough. 2014. Sources of nitrate export during rain-on-snow events at forested catchments. Biogeochemistry 120(1-3): 23–36.

O'Brien H. D., M. C. Eimers, S. A. Watmough and N. J. Casson. 2013. Spatial and temporal patterns in total phosphorus in south-central Ontario streams: The role of wetlands and past disturbance. Canadian Journal of Fisheries and Aquatic Sciences 70(5): 766-774, doi:10.1139/cjfas-2012-0474.

Casson, N. J., M. C. Eimers, and S. A. Watmough. 2012. Impact of winter warming on the timing of nutrient export from forested catchments. Hydrological Processes 26: 2546–2554.

Casson, N. J., M. C. Eimers and S. A. Watmough. 2012. An assessment of the nutrient status of sugar maple in Ontario: Indications of phosphorus limitationEnvironmental Monitoring and Assessment 184(10): 5917–5927.

Casson, N. J., M. C. Eimers and J. M. Buttle. 2010. The contribution of rain-on-snow events to nitrate export in the forested landscape of south-central Ontario, CanadaHydrological Processes 24: 1985-1993.