Variability and trends of meteorological parameters in Guinea:

In a context of climate change, the variability of meteorological parameters remains very sensitive to our environment. This work is part of a global perspective of the analysis of the annual, interannual and spatial variability of meteorological parameters in Guinea. It is based on the exploitation of long series of observations (57 years) measured by 12 meteorological stations spread over all regions of Guinea.The objective of this work is to exploit these original series, in order to improve the understanding of the variability of meteorological parameters and to contribute to increase the documentation of the associated geophysical processes. The approach developed is based on a climatological analysis, then the estimation of trends, using adapted numerical methods.The study showed that temperature variability is dominated by annual and semi-annual seasonal cycles, while rainfall variability is characterized by a predominant annual cycle. The results showed an increasing trend in temperature and a decreasing trend in precipitation since the late 1960s.