Research of the Seasonal Division Method on Tibetan Plateau

In this article, the daily temperature data of 60 stations on the Tibetan Plateau during 1961-2007, which is applicated by the National Meteorological Information Center of China Meteorological Administration, was used to analyse the applicability of the common seasonal division methods, and point the deficiency.According to the rationality of the duration of season, phonological characteristics, sea level elevation, characters of the climate (temperature) distribution and other factors propose, some new seasonal division methods for different production and living needs is given.After discussion, we can conclude: 1) The phonological seasonal division method "4℃-12℃-10℃-1℃" is particularly suitable for farming on plateau;2) The elevation seasonal division method is particularly suitable for clothing and tourism on plateau, the seasonal division method is "5℃-12℃-12℃-5℃" when sea level elevation is higher than 4000m, otherwise, the seasonal division method is "5℃-15℃-15℃-5℃";3) The life seasonal division method is particularly suitable for production and living in different region on plateau, the seasonal division method in Ⅰregion is"6℃-16℃-16℃-6℃", the seasonal division method in Ⅱ region is"5℃-12℃-12℃-5℃", the seasonal division method in Ⅲ region is "7℃-7℃", summer does not exist.Finally, the advantages and disadvantages of various methods were analyzed and concluded a new seasonal division method for whole plateau.The universal seasonal division method is particularly suitable for economy and government activities, tourism, living, clothing, sales of seasonal products of whole plateau.