Variability of minimum temperature across Libya (1945-2009)

摘要

Daily and monthly minimum temperature data from 15 meteorological stations were analysed during the period 1945-2009. The spatial and temporal variability in the daily and monthly temperatures were examined, with daily minimum temperature for eight coastal stations during the period 1956-2009 (only monthly data is available for the coastal station at Nalute) and the monthly minimum temperature for the period 1945-2009 from six inland stations. Five distinct 10 year interval blocks (with the exception of the last 9 years for the eight coastal stations and 7 years for inland stations) are analysed to examine temperature patterns across Libya. The annual minimum temperature over the last 27 years (1983-2009) for the majority of coastal stations identified significant warming in the minimum temperature. The mean annual minimum temperature at all study stations (1945-2009) identified significant increases in the minimum temperature, with significant changes in annual minimum temperature over the last 32 years (1978-2009) for the majority of the coastal and inland stations across Libya. Significant changes in minimum seasonal temperature for 33/32 year intervals (1945-1977 and 1978-2009) are identified in the summer (56%) and autumn (67%) at coastal stations (67%) and inland stations (50%).