Abstract
Heating degree-days for various locations in Pakistan — Karachi, Hyderabad, Lahore, Multan, Islamabad, Peshawar and Quetta — from 1987 to 1996, are calculated from the available meteorological data. The method to calculate the degree-days, which may be the first attempt for Pakistan, is briefly described. This study shows that the average heating degree-days in Quetta are about ten times more than the degree-days in Karachi and are double the number in Islamabad and Peshawar. In Lahore the heating degree-days are about one quarter of those at Quetta. In Pakistan in the month of January Quetta needed maximum heating and Karachi required minimum heating as compared with the other regions of Pakistan. Heating degree-days in Peshawar and Islamabad were approximately equal over the ten years 1987-1996. The heating requirement in Quetta region starts about two months earlier in the year than in the other regions of Pakistan.
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