ANALYSIS OF SURFACE AIR TEMPERATURE RECORDED IN LAHORE AND MIANWALI OVER THE PAST THREE DECADES

Surface air temperatures recorded over the past three decades at the weather stations located in Lahore (an industrialized and densely populated city) and Mianwali (a small and sparsely populated city) were analyzed in order to study their climatic trend.Lahore,where meteorological data are recorded at two weather stations (city station and airport station) indicates a cooling trend,of about 0.5℃ per record period of 1953-1992,for the airport station (31°31'N,74°24'E) and a slight warming trend,of about 0.2℃,for the city station (31°33'N,74°20'E) for the record period of 1950-1992.The Mianwali weather station (32°33'N,71°31'E) also shows a slight cooling trend,of about 0.4℃ per record period of 1959-1992.The climatic variability at these stations was studied by computing seasonal and annual temperature anomalies.The results are explained in terms of the local environmental conditions.