The Spatio-Temporal Evolution of the Average Drought Affecting Georgia
Soulé, Peter T.
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At the end of June 1988, portions of northern Georgia were experiencing a meteorological drought with a recurrence interval in excess of 100 years (Soulé and Meentemeyer, 1989a). This drought persisted through the autumn and winter months of 1988-1989, causing extremely low lake and well levels. Specific drought events are often studied (e.g. Cook, et al. 1988) as well as a state's or region's drought climatology (e.g. Eder and Davis, 1987; Henry and Dicks, 1984; van Bavel and Carreker, 1957). Nevertheless little is known about temporal and spatial development of the average drought affecting a specific area or region. The primary purpose of this study is: (1) to determine whether droughts affecting Georgia originate in the state versus expanding into the state "from another region; and (2) to compare the temporal and spatial development of Georgia's average drought with moisture patterns across the entire 48 United States. Finally we examine the possibility that droughts originating in other portions of the country can be used to predict drought in Georgia. Results from this work should prove useful to individuals or organizations responsible for drought contingency planning in Georgia.