پهنه بندي شدت يخبندان در استان يزد

The Zoning the Frost Intensity in Yazd Province

Frost is one of the most damaging natura! incident which influences on various aspects of human life, i.e. economic issues, social issues, transportation, buildings infrastructures, and agriculture. Assisting to frost seems to be a necessary issue especially in agricultural issues. The aim of this research is the zoning of frost intensity in Yazd province. According to the point that frost in Iran and Yazd province causes numerous damages to the agriculture section, in this research it has been tried to examine the frost intensity and passage zero temperature and below. To do so, we have used daily Min Temperature data of ^* Yazd weather station from , to Transition dates of zero and below zero temperatures also show that normally and by stations separation, zero transition date is from Aban outset to Azar middling, transition dates is from Aban ending to Dey outset and for from Azar middling to Dey middling.