The country to which Shanghai belongs is

Shanghai is a municipality directly under the Central Government of China.

Shanghai, also known as Shanghai and Shenzhou, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a megacity, the core city of the Shanghai metropolitan area, a famous historical and cultural city in China, and a first-tier city in the world. Shanghai has basically built itself into an international economic, financial, trade and shipping center, forming a basic framework for a technological innovation center with global influence. Shanghai has a total area of ??6340.5 square kilometers. As of 2022, Shanghai's permanent population will be 24.7589 million. As of October 2023, Shanghai has 16 districts under its jurisdiction.

About 6,000 years ago, the western part of Shanghai became land. During the Spring and Autumn Period and the Warring States Period, Shanghai was a fiefdom of Lord Chun Shen, so it was also called Shen. During the Jin Dynasty, because fishermen invented the fishing tool "Hu", the place where the river flows into the sea was called "Du". Therefore, the lower reaches of Songjiang River were called "Hudu", and later changed to "Hu", so Shanghai was shortened to "Hu".

Climate Environment

The climate of Shanghai is a subtropical monsoon climate, which is mild and humid, with four distinct seasons, sufficient sunshine and abundant rainfall, with shorter spring and autumn and longer winter and summer. Weather systems affecting Shanghai include typhoons, easterly disturbances, extratropical cyclones, plum rains, and cold waves. When the stationary front of the western Pacific subtropical high pressure stabilizes in the lower reaches of the Yangtze River and near Shanghai, it creates rainy, hot and humid Meiyu weather.

In 2021, the city’s annual average temperature (average of the city’s 11 meteorological observation stations) is 17.9°C, average annual precipitation (average of the city’s 11 meteorological observation stations) is 1518.9 mm, and annual sunshine hours (average of the city’s 11 meteorological observation stations) Meteorological observation station average) 1786 hours.

The flow of water resources in Shanghai mainly consists of the flow of the Huangpu River and other rivers in the city. The average annual runoff of the Huangpu River is more than 300 cubic meters per second, and the average annual flow is 10 billion cubic meters. Together with the flow of other rivers in the city, the average annual runoff of Shanghai's water resources totals 14.5 billion cubic meters. Due to the influence of some exogenous factors, the amount of water changes greatly every year, generally fluctuating within the range of 5 to 23 billion cubic meters.

The above content refers to Baidu Encyclopedia-Shanghai