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The human ecology of tornadoes
B E Aguirre1, R Saenz, J Edmiston
1Department of Sociology, Texas A & M University, College Station 77843.
Demography
|November 1, 1993
Summary
Urban counties experience more tornadoes than rural areas, with higher tornado frequency linked to past tornado activity. This study examines human ecological patterns and their influence on tornado occurrence.
Area of Science:
- Environmental Science
- Atmospheric Science
- Demography
Background:
- Tornado occurrence is influenced by various factors, including atmospheric conditions and potentially human ecological patterns.
- Understanding these influences is crucial for accurate forecasting and disaster preparedness.
Purpose of the Study:
- To empirically test the impact of human ecological patterns on tornado occurrence.
- To investigate the relationship between urban/rural settings and tornado frequency.
- To assess the correlation between past tornado activity and future occurrences.
Main Methods:
- Utilized tornado data from the National Severe Storms Forecast Center (1950-1990).
- Employed ecological data from the U.S. Bureau of the Census and the Environmental Protection Agency.
- Conducted statistical analysis to determine the significance of ecological factors and historical tornado data.
Main Results:
- Metropolitan and urban counties show higher odds of tornado occurrence compared to rural counties.
- A positive correlation exists between the number of previous tornadoes and the probability of future tornado occurrence.
- Human ecological patterns, particularly urbanization, are significant correlates of tornado occurrence.
Conclusions:
- Urbanization is associated with increased tornado occurrence, suggesting a need to incorporate human settlement patterns into tornado risk assessments.
- Historical tornado frequency is a predictor of future events, highlighting the importance of long-term data analysis.
- Findings have implications for atmospheric scientists, demographers, engineers, and disaster managers in understanding and mitigating tornado impacts.