Abstract
This study, through the inclusion of a simpleparameterization of the phenologicaldevelopment of spring wheat in evapotranspirationsimulations for 1988–2000, at a representativearid grassland and a representative transitionalgrassland site, delineated the inter-annualvariability of the seasonal moisture flux from theCanadian Prairie agro-ecosystem. Theagro-ecosystem's contribution to atmospheric boundary-layermoisture, at these representative sites, wasrelated to the seasonal pattern of tornado days in thegrassland eco-climatic zone for the averageyear, for a warmer/drier year and for a cooler/wetteryear. The following conclusions were drawn:(1) The moisture flux from the Prairie agro-ecosystemdisplays considerable inter-annualvariability due, in the main, to the rate andtiming of crop phenological development andassociated biophysical parameters, and (2) themoisture flux from the Prairie agro-ecosystemtranslates directly into changes in atmosphericboundary-layer moisture, which subsequentlyaffects the magnitude of the potential energyavailable for deep convection and the seasonalpattern of tornado days. For expansive agriculturalareas, representing the inter-annual variabilityof crop phenological development in land surfacemodels is critical to the successful simulationof the surface moisture flux, and thus thethermodynamic properties of the atmospheric boundarylayer. Therefore, it is of particularimportance to Prairie climate and climate change modelling.
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Ash, G. H. B., Shaykewich, C. F., and Raddatz, R. L.: 1992, ‘Moisture Risk Assessment for Spring Wheat on the Eastern Prairies: A Water-Use Simulation Model’ Clim. Bull. 26, 65–78.
Baier, W.: 1971, ‘Evaluation of Latent Evaporation Estimates and their Conversion to Potential Evaporation’ Can. J. Plant Sci. 51, 255–266.
Baier, W. and Robertson, G. W.: 1965, ‘Estimation of Latent Evaporation from Simple Weather Observations’ Can. J. Plant Sci. 45, 276–284.
Baier, W., Dyer, J. A., and Sharp, W. R.: 1979, The Versatile Soil Moisture Budget, Tech. Bull. No. 87, Agriculture Canada, Ottawa, ON, 52 pp.
Blackman, P. G. and Davis, W. J.: 1985, ‘Root to Shoot Communication in Maize Plants of the Effects of Soil Drying’ J. Exp. Bot. 36, 39–48.
Canada Committee on Ecological Land Classification: 1989, Eco-Climatic Regions of Canada, Ecological Land Classification Series No. 23, Environment Canada, Ottawa, ON, 118 pp.
Clark, C. A. and Arritt, R. W.: 1995, ‘Numerical Simulation of the Effect of Soil Moisture and Vegetation Cover on the Development of Deep Convection’ J. Appl. Meteorol. 34, 2029–2045.
de Jong, R. and Bootsma, A.: 1988, ‘Estimated Long Term Soil Moisture Variability on the Canadian Prairies’ Can. J. Soil Sci. 68, 307–321.
Dunlop, S. and Shaykewich, C. F.: 1981, Southern Manitoba's Climate and Agriculture, Manitoba Agriculture, 50 pp.
Environment Canada: 1991, The State of Canada's Environment, Ch. 17-Prairie Grasslands. Supply & Services, Cat. No. En21–54/1991E. Ottawa, Canada, pp. 4–8.
Fitzjarrald, D. R., Acevedo, O. C., and Moore, K. E.: 2001, ‘Climatic Consequences of Leaf Presence in the Eastern United States’ J. Climate 14, 598–614.
Grazulis, T. P.: 1993, Significant Tornadoes 1680–1991. The Tornado Project of Environmental Films, St. Johnsbury, VT, 1326 pp.
Hobbs, E. H. and Krogman, K. K.: 1968, ‘Observed and Estimated Evapotranspiration in Southern Alberta’ Trans. ASAE 11, 502–503.
Johns, R. H., Broyles, C., Eastlack, D., Guerrero, H., and Harding, K.: 2000, ‘The Role of Synoptic Patterns and Moisture Distribution in Determining the Location of Strong and Violent Tornado Episodes in the North Central United States: A Preliminary Examination’ in 20th Conference on Severe Local Storms. American Meteorological Society, Boston, MA, pp. 489–492.
Lu, L., PielkeSr., R. A., Liston, G. E., Parton, W. J., Ojima, D., and Hartman, M.: 2001, ‘Implementation of a Two-Way Interactive Atmospheric and Ecological Model and its Application to the Central United States’ J. Climate 14, 900–919.
McGinley, J.: 1986, ‘Nowcasting Mesoscale Phenomena’ in P. S. Ray (ed.), Mesoscale Meteorology and Forecasting, American Meteorological Society, Boston, MA, pp. 657–688.
Pielke, R. A. and Zeng, X.: 1989, ‘Influence on Severe Storm Development of Irrigated Land’ Nat. Wea. Digest. 14, 16–17.
Raddatz, R. L.: 1989, ‘An Operational Agrometeorological Information System for the Canadian Plains’ Clim. Bull. 23, 83–97.
Raddatz, R. L.: 1993, ‘Prairie Agroclimate Boundary-Layer Model: A Simulation of the Atmosphere/Crop-Soil Interface’ Atmos,-Ocean. 31, 399–419.
Raddatz, R. L.: 1998, ‘Anthropogenic Vegetation Transformation and the Potential for Deep Convection on the Canadian Prairies’ Can. J. Soil Sci. 78, 656–666.
Raddatz, R. L.: 2000, ‘Summer Rainfall Recycling for an Agricultural Region of the Canadian Prairies’ Can. J. Soil Sci. 80, 367–373.
Raddatz, R. L. and Hanesiak, J. M.: 1991, ‘Climatology of Tornado Days 1960–1989 for Manitoba and Saskatchewan’ Clim. Bull. 25, 47–59.
Raddatz, R. L., Ash, G. H. B., Shaykewich, C. F., Roberge, K. A., and Graham, J. L.: 1996, First-and Second-Generation Agrometeorological Models for the Prairies and Simulated Water-Demand for Potatoes’ Can. J. Soil Sci. 76, 297–305.
Raddatz, R. L., Shaykewich, C. F., and Bullock, P. R.: 1994, ‘Prairie Crop Yield Estimates from Modelled Phenological Development and Water-Use’ Can. J. Plant Sci. 74, 429–436.
Rasmussen, V. P. and Hanks, R. J.: 1978, ‘Spring Wheat Yield Model for Limited Moisture Conditions’ Agron. J. 70, 940–944.
Robertson, G. W.: 1968, ‘A Biometeorological Time Scale for a Cereal Crop Involving Day and Night Temperatures and Photoperiod’ Int. J. Biometeorol. 12, 191–223.
Scholefield, P., Guezen, T., and Raddatz, R. L.: 1989, ‘The 1988 Drought in Canada’ in Proceedings of the 13th Annual Climate Diagnostic Workshop, U.S. National Weather Service, Climate Analysis Center, Washington, DC, pp. 19–23.
Schwartz, M. D.: 1992, ‘Phenology and Spring Surface-Layer Change’ Mon. Wea. Rev. 120, 2570–2578.
Segal, M., Arritt, W., and Clark, C.: 1995, ‘Scaling Evaluation of the Effect of Surface Characteristics on the Potential for Deep Convection over Uniform Terrain’ Mon. Wea. Rev. 123, 383–400.
Strong, G. S.: 1997, ‘Atmospheric Moisture Budget Estimates of Regional Evapotranspiration from RES-91’ Atmos.-Ocean. 35, 29–63.
Strong, G. S. and Smith, C. D.: 2001, Assessment and Prediction of Prairie Severe Thunderstorm Weather Phenomena, Report for Emergency Preparedness Canada, 130 pp.
Tsvetsinskaya, E. A., Mearns, L. O., and Easterling, W. E.: 2001a, ‘Investigating the Effect of Seasonal Plant Growth and Development in Three-Dimensional Atmospheric Simulations. Part I: Simulation of Surface Fluxes over the Growing Season’ J. Climate 14, 692–709.
Tsvetsinskaya, E. A., Mearns, L. O., and Easterling, W. E.: 2001b, ‘Investigating the Effect of Seasonal Plant Growth and Development in Three-Dimensional Atmospheric Simulations. Part II: Atmospheric Response to Crop Growth and Development’ J. Climate 14, 711–729.
Weisman, M. L. and Klemp, J. B.: 1986, ‘Characteristics of Isolated Convective Storms’ in P. S. Ray (ed.), Mesoscale Meteorology and Forecasting, American Meteorological Society, Boston, MA, pp. 331–358.
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Raddatz, R.L., Cummine, J.D. Inter-annual Variability of Moisture Flux from the Prairie Agro-ecosystem: Impact of Crop Phenology on the Seasonal Pattern of Tornado Days. Boundary-Layer Meteorology 106, 283–295 (2003). https://doi.org/10.1023/A:1021117925505
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DOI: https://doi.org/10.1023/A:1021117925505