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Abstract

Data over an 80-year period from Georgetown, Guyana were analyzed to determine rainfall patterns along the coastal plain. Data revealed that two distinct wet and two dry seasons occur annually and that a high probability exists that annual rainfall almost never surpasses nor lags behind that of the previous year for more than two consecutive years. Additionally, it is concluded that rainfall was heavier during 1941-1980 than during the previous 40 years, and that interannual and interdecadal variability existed during the study period . Apart from their practical application in planning and water resource management, studies of this nature can contribute to a better understanding of climate and rainfall patterns on a regional and global scales.

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