Relationships between Climate Parameters and Forest Vegetation at and Near Digya National Park, Ghana

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.