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Tianjin, referred to as Jingu and Jinmen for short, is a provincial administrative region, municipality directly under the Central Government, national central city and megacity in People's Republic of China (PRC), a national advanced manufacturing R&D base, a core area of northern international shipping, a demonstration area of financial innovation and operation, and a pioneer area of reform and opening up.
China's northern gateway to the outside world, China's northern shipping center, logistics center and modern manufacturing base, Bohai Economic Center, international consumption center city and regional business center city,
China International Aviation Logistics Center is an international comprehensive transportation hub. As of 2022, Tianjin * * * governs 16, with a total area of 1 1966.45 square kilometers and a permanent population of13.63 million.
The geological structure of Tianjin is complex, and most of it is covered by Cenozoic sediments. The terrain is dominated by plains and depressions, with low mountains and hills in the north, and the altitude gradually decreases from north to south. The highest in the north, with an altitude of1052m; The lowest in the southeast, 3.5 meters above sea level. The highest peak in the city: Jiushan Peak (elevation1078.5m).
The general outline of the landform is high in the northwest and low in the southeast. Tianjin has three kinds of topography: mountains, hills and plains, with plains accounting for about 93%. Except the mountainous area bordering the southern foot of Yanshan Mountain in the north, the rest are alluvial plains, and the mountainous area in the north of Jixian County is a low mountain and hill below 1000 meters above sea level. Near the mountain is an inclined plain composed of alluvial fans, which is fan-shaped
The southern part of the inclined plain is alluvial plain, and the southeastern part is coastal plain. Sanhe Island, the only registered island in Tianjin, is located in Beitang, an ancient town in Tianjin Binhai New Area. It is named after the intersection of Yongding New River, Chaobai River and Jiyun Canal.
Tianjin is located in the north temperate zone and the east coast of Eurasia in the middle latitude. It is dominated by monsoon circulation, and it is an area where East Asian monsoon prevails, with a warm temperate and semi-humid monsoon climate. Near Bohai Bay, the influence of marine climate on Tianjin is obvious. The main climatic characteristics are: four distinct seasons, windy spring, drought and little rain;
Summer is hot and the rain is concentrated; Autumn is cool and the temperature is moderate; Winter is cold, dry and snowy, so late spring, early summer and autumn are the best seasons to travel to Tianjin.