Tianjin’s human geography and climate characteristics

Tianjin Humanities:

Tianjin, one of China's four major municipalities, is located in the northeastern part of the North China Plain on the west coast of the Pacific Ocean and around the Bohai Sea. It is located in the lower reaches of the Haihe River Basin and borders the Bohai Sea to the east. Bordering Yanshan Mountain in the north and the capital Beijing in the west, with a total area of ??11,900 square kilometers, it is the largest commercial city and port city in northern China. The early development of the Tianjin Plain began in the Neolithic Age about 6,000 years ago. Previously, most of Tianjin was still a vast ocean. Its development has gone through a process of gradual advancement from north to south. The establishment of Beijing as the capital during the Jin and Yuan Dynasties provided a good opportunity for the prosperity of Tianjin. During the Ming and Qing Dynasties, Tianjin's politics, economy, and culture achieved further development, gradually becoming the most prosperous commercial metropolis in northern China.

Tianjin has formed a unique urban culture in the 600 years since its establishment. Through a brief analysis and explanation of the formation of Tianjin urban culture and the characteristics of diversity and compatibility, it can be clearly felt that Tianjin regional culture is composed of Haihe culture, Chengxiang culture, temple culture, immigration culture, military culture, water transport culture, It is a fusion of 10 aspects including commercial port culture, dock culture, concession culture, and charity culture.

Tianjin climate characteristics:

Tianjin is located on the east coast of the Eurasian continent at mid-latitudes. It is mainly dominated by monsoon circulation. It is an area where the East Asian monsoon prevails and has a continental climate. The main climate characteristics are four distinct seasons, with windy spring, drought and little rain; hot summer with concentrated rain; cool air in autumn with moderate temperatures; cold winter with dryness and little snow.

The annual average temperature in Tianjin is 11.4~12.9°C, and the highest average temperature in the urban area is 12.9°C. January is the coldest, with an average temperature of -5~-3°C; July is the hottest, with an average temperature of 26~27°C. The monsoon prevails in Tianjin, with the wind speed being the highest in winter and spring and the lowest in summer and autumn. The annual average wind speed is 2 to 4 meters/second, mostly from the southwest. The average frost-free period in Tianjin is 196 to 246 days, the longest frost-free period is 267 days, and the shortest frost-free period is 171 days. Among the four seasons, winter is the longest, with 156 to 167 days; summer is the second, with 87 to 103 days; spring is 56 to 61 days; autumn is the shortest, only 50 to 56 days. The average annual precipitation in Tianjin is 520 to 660 mm, and the number of precipitation days is 63 to 70. In terms of regional distribution, there are more mountains than plains, and more coastal areas than inland areas. In terms of seasonal distribution, the precipitation in June, July and August accounts for about 75% of the whole year. Tianjin has longer sunshine hours, with annual sunshine hours ranging from 2,500 to 2,900 hours.