Analysis of Changes in Comfort Climate Tourism of Human Residents of Guilan Province Using the Indicator (PET)

With attention to the importance of the tourism industry and its dependence on the climate as a determinant factor for the planning of tourists, the need to understand the desirable and desirable weather conditions for domestic and foreign tourists is necessary so that the applicant can adapt to it, planning In terms of travel time, type of clothing and equipment required. Guilan province, in terms of geographical conditions and having natural features such as coastal, plain and mountainous areas, as one of the most volatile areas of the country, requires a timetable for tourism, and by providing this comprehensive calendar can Take an important step on the basis of the climate of the environment Tourism. The purpose of this study was to investigate the thermal comfort climate of Guilan province based on weather stations of synoptic stations in time interval (1980 - 2016) using PET model) and analyze it based on maps obtained from GIS software. Its assistance could provide the necessary planning for the development of tourism in the province and the appropriate location and timing. The results show that the past 37 years in July, which coincided with the solar date from July 10 to August 10, the index of the PET index has been decreasing, and the climate condition has improved in this month and the heat stress has declined. Also, October and May (May and October) are among the most suitable periods for tourism in terms of comfort climate.