عنوان مقاله [English]
نویسندگان [English]چکیده [English]
The principles of passive infrastructure such as power plants in localization, an important process industries, military industry, heavy industry, determine the route of power transmission lines, gas pipelines, water-pipelines, communication lines, refineries, pumping stations, etc., can in terms of hazards and reduce and minimize any damage to any military threat. Transitive agents are effective in the passive defense and geographical factors are that most of these factors. Among the geographical factors, climate as an important index of human life, especially in the development of human settlements plays an important role in developing and operating restrictions. Climate factors play an important role in defense and can be used as an important indicator of passive defense, the purpose of this study was to evaluate the susceptibility of the climate in passive defense. For assessment and zoning in the western half of the country's central region of 45 synoptic stations in the region with over 25 year period were selected and climate data on temperature, relative humidity, wind speed and direction, cloud, visibility, precipitation rain and snow during the day and month of the Meteorological Agency were received. The thresholds of military operations and the possibilities of influencing climatic parameters that influence the military operation were calculated. In order to weight and rank parameters AHP method was used and defensive climate index was obtained. The results of this study showed that the western half of the countries divided in three northern, central and southern parts. The northern part includes the provinces of East Azerbaijan, West Azerbaijan, Zanjan, Ardabil, And Hamadan, The middle part contains Lorestan, Kermanshah and north of Eelam and the southern part includes southern parts of Eelam and Khuzestan provinces. Between the months of May to October, in the northern part of the region unsuitable climatic conditions and in the months of December to April suitable climatic conditions are dominated by passive defense. In the middle parts in July, August, January and February suitable climatic conditions and in the remaining months of the year unsuitable climatic conditions is common. In the southern parts of the region during the months of May to September suitable conditions in the months of December, January and February, acceptable conditions and in November, March and April the unsuitable conditions are dominant.