(1) Department of Accounting, Qaem Shahr Branch, Islamic Azad University, Qaem Shahr, Iran.
Corresponding Author: Dr.mehrdad Matani, Department of Accounting, Qaem Shahr Branch, Islamic Azad University, Qaem Shahr, Iran
Figure 2 shows the monthly mean precipitation and air temperature in the Synoptic Meteorological Station (Qaem Shahr).
The climate zoning of the Qaem Shahr station was primarily done by the long-term (1984-2008) air temperature and precipitation data obtained from the synoptic meteorological station (Table 1) using De Martonne climate classification satisfied by equation (1):
The long-term trends of the meteorological parameters as well as E[T.sub.0] recorded in the synoptic meteorological station in Qaem Shahr can be seen in Figures 3 and 4.
Also the wind speed and precipitation has increased in Qaem Shahr station, just the relative humidity has decreased in Qaem Shahr station.
In response to the change in air temperature, Qaem Shahr showed the sensitivity of E[T.sub.0], i.e [+ or -] 7.2% vs [+ or -] 9.7%.
There was a variation in E[T.sub.0] sensitivity in response to change in meteorological parameters in Qaem Shahr, so that the highest effect on annual E[T.sub.0] was attributed to the change in actual vapor pressure during the nongrowing season.