Abstract
ABSTRACT This study analyzes the effect of large-scale forcing on the variability of the mean air temperature and precipitation of some stations of north Libya and the Mediterranean Sea, using the observed data and the National Centers for Environmental Prediction (NCEP) reanalysis gridded datasets for the period 1950-2016. The analysis reveals that the strong variability in temperature over region is closely associated with the North Atlantic Oscillation (NAO) index for all seasons however, the relationship is most prominent during the winter season, and during the negative phase of NAO, the temperature over north Libya and Mediterranean tends to increase , whereas the spring season temperature is influenced by the El Niño Southern Oscillation (ENSO), while the amount of precipitation has an inverse winter relationship, and for NAO effect the correlation is positive but some stations are negative during the winter and the rest of the seasons the relationship is positive.