Abstract
Analytical study of some climatic factors were done using meteorological station records of Hammam Al- Alil region during the period of 1967-2002.The study involved the interaction between climatic factors such as atmospheric pressure, air temperature, relative humidity, dew point, vapor pressure, saturated vapor pressure, and saturation deficit .The results showed that the annual temperature of the study area was 20.06 c , with standard deviation and coefficient of variation equal to 1.51 and 7.5% respectively . While the maximum and minimum amounts of monthly evapotranspiration were found to be 576 and 73mm during July and January respectively . Atmospheric pressure(AP) on the other hand affected by some other climatic factors such as air temperature (t) and wind velocity (wv) in knot. Also dew point (d) was affected strongly by vapor pressure (vp). Step wise procedure was used to select the best equations. Some of these equation that gave good fit are:
d = 0.2151 + 0.7522 (VP) …………. Spring season
d = -2.6988 0 1.0046 (VP) ………… Fall season
also the correlation between relative Humidity as depended variable and some other climate factor such as dew point, Vapore pressure, air temperature and Saturation deficit as independent variables were studied.
