Precipitation types in Zhangjiajie

Zhangjiajie, a city with green precipitation, belongs to the humid climate zone of mid-subtropical monsoon, with concentrated rainfall and more precipitation. The average annual precipitation days are 150- 180 days. In winter, it is often controlled by cold air masses from northwest and Mongolia, and cold currents frequently go south, causing rain, snow and frost. In summer, the warm and humid air mass blown from the south is blocked and lifted by mountains, and becomes updraft, which is easy to cause rainfall. Summer and autumn are controlled by subtropical high, and hot weather often occurs. Some areas are affected by tropical low-pressure typhoon weather system, and heavy precipitation often occurs. At the turn of spring and summer, it is in the transition period of cold and warm air flow, and frequent peaks and cyclone activities have caused wet and rainy weather. (1) The distribution of precipitation in a year varies greatly, and it is often concentrated in a few months. The precipitation in these months basically determines the abundance and dryness of a year. For four consecutive months, the maximum precipitation occurred in May-August, accounting for 58% of the whole year, the precipitation in flood season (April-September) accounted for 73% of the whole year, the maximum monthly precipitation accounted for 19% of the whole year, the minimum monthly precipitation occurred in 65438+February or 65438+1October, and the maximum monthly average precipitation was about the minimum month. (2) The rainstorm is influenced by geographical environment and climate. There is heavy rain in the whole city every year. Liangshuikou in Sangzhi County is a famous rainstorm center, with 24-hour average rainfall1.35.9mm and 3-day average rainfall1.94.2mm. In the measured records, the 24-hour precipitation at Liangshuikou Station reached 41.4.7mm (1.999mm). Zhangjiajie, located in the mid-northern latitude, belongs to the prototype of monsoon humid climate in the mid-subtropical mountainous area, with abundant light and heat, abundant rainfall, long frost-free period, short severe cold period and distinct four seasons. The average sunshine, temperature and precipitation over the years are about 65438 0.440 hours, 65438 0.6 degrees and 65438 0.400 mm respectively, and the average frost-free period over the years is 265438 0.6 days to 266. Such a climate is conducive to the all-round development of agriculture, forestry, animal husbandry, sideline production and fishery. However, influenced by topography, landforms and other factors, China's climate is complex and changeable, and natural disasters such as drought, floods, strong winds and hail are also frequent. Spring (March/May) temperature: 5.8℃, 1 1.4℃,16.1℃; Spring temperature: 19.7℃, 23. 13.9℃, 8.7℃ Autumn is like washing-fruit-enjoying climbing in winter (12/February) Temperature: 3.4℃, 0.7℃, 1.3℃ Winter is like sleeping-snow-enjoying is clean, Zhangjiajie, Xun Mei is183m above sea level.