Investigation of Displacement of Minimum Temperatures Temporal and Spatial Cores in West and Northern West of Iran

One of the prominent challenges in current century is climate changes. Among weather parameters, temperature changes as the most basic element of the weather in every district have special importance. The west and the north-west of Iran, where is a mountainous region and full of snow, consider as water sources for great rivers and also underground water supply. Therefore, every climatic change in these parts particularly in a cold season, not only causes changes in a hydrology cycle also in a rainfall regime, soil moisture regime, cultivation pattern, increase or decrease of climatic crisis. So, recognition and enquiry of changes and fluctuations in different climatic parameters according to different intervals can provide a very noticeable outlook for future programs. As a result, 2 goals which this research has been pursuing are · To appoint temporal and spatial cores of severe colds in the west and the north-west of Iran. · Understand a process of replacement of temporal and spatial cores of severe colds in the west and the north-west of Iran.