Coğrafi Bilimler Dergisi (Aug 2007)
Konya’da Şehirleşmeye Bağlı Bağil Nem ve Su Buhari Basıncı Değişiklikleri
Abstract
This study aims to show the effects of urbanization on humidity by considering water vapor pressure and relative humidity data obtained from Konya and Karapınar Meteorology Stations. Mean values and those obtained at 07.00, 14.00 and 21.00 hours were evaluated to determine differences in humidity throughout the day. It was seen that in urban areas throughout the year, mean values and data recorded at 07.00 and 21.00 hours yielded negative relative humidity differences whereas data recorded in the afternoon yielded positive ones. These positive differences were thought to be a result of the negative urban heat islands that form in urban centers in the afternoon. Differences in water vapor pressure were not as significant as relative humidity differences. While urban centers were more humid than suburban/rural areas in winter, they were drier in summer except in the noon hours. At noon throughout the year, cities were more humid. Elevated urban humidity in summer seemed to be a result of irrigation in parks and gardens. Significant negative correlations were found between temperature and relative humidity differences in all annual mean values and observations made throughout the year. Thus, it was concluded that the development of urban heat islands lead to decreased relative humidity in cities. On the other hand, a significant positive correlation was found between temperature and water vapor pressure differences in all seasonal and annual mean values, except in the afternoon observations
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