Reconstruction of Historical Data and Analysis on Three-dimensional Tourism Climate Resources in Fanjing Mountain Scenic Spot

Fanjing Mountain scenic spot with the highest altitude of 2572m, is a 5A level scenic spot in Guizhou Province and it belongs to Jiangkou county with the altitude of 362m. Due to the obvious difference in altitude, historical observation data of Jiangkou county can not well reflect the historical climate characteristics of Fanjing Mountain scenic spot.In this paper, a multiple regression model is established based on the observation elements of temperature, humidity, wind, rainfall and other automatic stations in Fanjing Mountain scenic spot and Jiangkou county on the same day from 2016 to 2018. The differences of temperature, humidity, wind etc. and tourism climate suitability between Fanjing Mountain scenic spot and Jiangkou county were analyzed. The results show: The simulation value of average temperature error between $\pm 2^\circ$ in regression model accounts for 70.8%, and the maximum temperature error is slightly higher,but they are better than the calculated values of temperature decline rate. The ratio of average relative humidity error within $\pm 10\%$ is 75.8%.The average maximum temperature in Fanjing Mountain of reconstruction historical data from 1980 to 2014 is 12.8${^\circ}$, and the average annual temperature is 8.7 ${^\circ}$, which is 8.4${^\circ}$ and 7.7${^\circ}$ lower than Jiangkou county respectively. They are about 5${^\circ}$ higher than the calculated values of temperature decline rate.InJiangkou county, the average temperature and the maximum temperature in 35 years shows an upward trend, but the annual change trend of Fanjing Mountain temperature is not obvious. The annual average humidity (94%) and wind speed (4.8m/s) in Fanjing Mountain are higher than those of Jiangkou county (80.8% and 1.2m/s), and their annual change trend is consistent with that of Jiangkou county, showing a downward trend. The tourism climate suitability of Fanjing Mountain and Jiangkoucounty is analyzed comparatively. The winter tourism climate suitability of Jiangkou county is general, the rest months are suitable, and the tourism climate suitability index in July and August is lower than 70. However, Fanjing Mountain is suitable in summer, and its tourism climate suitability index is higher than 70, but its tourism suitability is poor from January to April and from October to December. The reconstruction of historical data of Fanjing Mountain scenic spot provides data support for the analysis of three-dimensional tourism climate resources and the development of summer tourism economy.