This paper evaluates the effect of three climate parameters on forest cover in Ghana and the normalized difference vegetation index (NDVI) at Digya National Park derived from Landsat image data. Climate data (temperature, humidity, dewpoint, rainfall) are assembled from statistics provided by Ghana’s Meteorological Agency. The study introduces a weighted averaging method by computing weather information from neighbouring stations. Also, this research introduces a model of dewpoints, enabling the direct calculation of dewpoints from temperature and humidity data. The major finding is that while temperature significantly affects forest cover and Park vegetation, dew-points and rainfall do not. The paper suggests where future research may be more fruitful in analyzing the effects of climate on vegetation.
Dr. Yaw A. Twumasi
Department of Urban Forestry and Natural Resources, Southern University and A&M College,102C Fisher Hall, Baton Rouge, LA 70813, USA.
Tommy L. Coleman
Department of Natural Resources and Environmental Sciences, Alabama A&M University, P.O. Box 1208, Normal, AL 35762, USA.
Department of Agronomy, Iowa State University, 1126A Agronomy Hall, Ames, IA 50011, USA.
Edmund C. Merem
Department of Urban and Regional Planning, Jackson State University, 101 West Capitol Street, Jackson, MS 39201, USA.
Department of Mathematics and Computer Sciences, Oakwood University, 7000 Adventist Blvd. Huntsville, AL 35896, USA.
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