Characteristics of Shanghai

1. Landform features: Shanghai belongs to the alluvial plain of the Yangtze River Delta, with an average elevation of about 2. 19 meters. The highest altitude is Dajinshan Island in Hangzhou Bay, Jinshan District, with an altitude of 103.70 meters.

2. Climate characteristics: Shanghai has a subtropical monsoon climate with four distinct seasons, abundant sunshine and rainfall. Shanghai has a mild and humid climate, with shorter spring and autumn and longer winter and summer. In 20 13 years, the city's average temperature 17.6℃, sunshine 1885.9 hours, and precipitation1kloc-0/73.4 mm. More than 60% of the annual rainfall is concentrated in the flood season from May to September.

3. Natural resources: The flow of water resources in Shanghai is mainly composed of the flow of Huangpu River and other rivers in the city. The average annual runoff of Huangpu River is more than 300 cubic meters per second, with an average annual runoff of 654.38+000 billion cubic meters. Together with the flow of other rivers in Shanghai, the average annual runoff of water resources in Shanghai totals 654.38+0.45 billion cubic meters. Due to some exogenous factors, the annual water volume changes greatly, generally fluctuating within the range of 5 billion to 23 billion cubic meters.