Broadly speaking, my research explores the spatial and temporal patterns of atmospheric processes/patterns and the multiple linkages of these processes/patterns to surface weather and climate variability. I utilize a synoptic climatological approach whereby samples of various types of weather events, such as heavy rainfall, thunderstorms, and heat waves, are examined statistically to determine the: 1) commonalities and differences in the synoptic or large scale patterns/processes and 2) atmospheric field features that most effectively distinguish event characteristics, such as intensity, spatial pattern and diurnal timing.
In the last five years, I have been involved in an eclectic, but interrelated set of synoptic climatological projects. These projects include: 1) The determination of relationships between landfalling tropical cyclone attributes and precipitation processes/patterns 2) The assessment of spatial and temporal patterns of thunderstorm activity as inferred from cloud to ground (CG) lightning patterns; 3) The identification of regional variations in the synoptic patterns associated with warm season precipitation within the eastern U.S.; 4) The determination of relationships between orographic processes and precipitation patterns in the southern Appalachians; 5) The examination of relationships between warm season drought/heat waves and the synoptic to planetary scale circulation. The majority of this research has focused on weather events that commonly occur in the maritime tropical weather regime of the southeastern United States.
An underlying theme in my research is the cross-scale connections between small and large scale atmospheric phenomena. In particular, I am interested in the nature of mesoscale convective patterns and their relationship with the larger scale synoptic environment, particularly as it relates to precipitation production. A better understanding of these relationships is needed in order to better predict extremely heavy rainfall. This is especially the case where tropical systems interact with mesoscale features such as coastal fronts or terrain features (e.g. the Blue Ridge escarpment in North Carolina). Additionally I am interested in the subtle, but significant cross-scale relationships that exist between the synoptic environment and mesoscale convective systems in which individual cells repeatedly develop and move over the same region.
Selected Recent Publications
Perry L. and C. E. Konrad, 2007: Antecedent Upstream Air Trajectories Associated with Northwest Flow Snowfall in the Southern Appalachians, USA. Weather and Forecasting, 22, 334-352.
Martin, J. and C.E. Konrad, 2006: Directional characteristics of potentially damaging wind gusts in the Southeast United States. Physical Geography, 27, 155-169.
Perry L. and C. E. Konrad, 2006: Relationships between northwest flow snowfall and topography in the Southern Appalachians. Climate Research, 32, 35-47.
Chen, F. and C. E. Konrad, 2006: A synoptic climatology of summertime heat and humidity in the Piedmont Region of North Carolina. Applied Meteorology and Climatology, 45, 674-685.
Murphy, M. and C. E. Konrad, 2005: Spatial and temporal patterns of thunderstorm events that produce cloud-to-ground lightning in the interior southeastern United States. Monthly Weather Review, 133, 1417-1430.
Konrad, C. E., Meaux, M. F., and D. A. Meaux, 2002: Relationships between tropical cyclone attributes and precipitation totals: Considerations of scale. The International Journal of Climatology, 22, 237-247.
Konrad, C. E., 2001b: Diurnal variations in the landfall times of tropical cyclones over the eastern United States. Monthly Weather Review, 129, 2627-2631.
Konrad, C. E., 2001a: The heaviest precipitation events over the eastern United States: Considerations of scale. Journal of Hydrometeorology, 2, 309-325.
Colucci, S. J., Baumhefner, D. P., and C. E. Konrad, 1999: Numerical Prediction of a cold-air outbreak: A case study with forecast ensembles. Monthly Weather Review, 127,1538-1550.
Konrad, C. E., 1998a: Intramonthly indices of the Pacific / North American teleconnection pattern and their relationship with temperature characteristics over the United States. Theoretical and Applied Climatology. 60, 11-19.
Konrad, C. E., 1998b: A hydroclimatological analysis of the lower Roanoke River basin. Physical Geography. 19, 15-34.
Konrad, C. E., 1998c: Persistent planetary scale circulation patterns and their relationship with the intensity of cold air outbreaks over the eastern United States. The International Journal of Climatology. 18, 1209-1221.
Konrad, C. E., 1998d: An empirical approach for delineating the spatial patterns of freezing rain in the Appalachian region of the USA. Climate Research 10, 217-227.
Selected Recent Funding
Band, L. E., Konrad, C. E., Moody, A. Drought vulnerability in the Catawba River basin. 2003-2004, Duke Energy Foundation, $100,000.
Konrad, C. E. Synoptic climatology of precipitation forcing fields over the eastern U.S. National Science Foundation. BCS-9911315. $106,905.
Rindfuss, R. R., Walsh, S. J., Entwisle, B., Konrad, C. E., Moody, A., Curran, S. Sawangdee, Y., 1997-2000: Soil, water, and pixels: A study of Nang Rong, Thailand. NASA. $570,000.
Winter weather climatology over SE US
NW flow snowfall and topography in southern Appalachians.
Directional aspects of wind gusts across SE US.
Spatial and temporal patterns of thunderstorms.
Synoptic climatology of hot events across North Carolina
Diurnal and seasonal variations in the clarity of celestial observations from visibility data