Daily high tide schedule of Qiantang River in 2023

The spring tides in 2023 are: April 13, May 12, June 10, July 9, August 7, September 6, 65438+1October 5165438+.

Compared with other years, the spring tide in 2023 is very regular, and there is a spring tide every other month, which lasts for a very long time, about 4-5 hours.

Qiantang River, called Zhejiang in ancient times, is also called Zhejiang River, Zhijiang River and Luosha River. Generally, the Fuyang section of Zhejiang Province is called Fuchun River, and the Hangzhou section of the lower reaches of Zhejiang Province is called Qiantang River. Qiantang River was first named after Shan Hai Jing. Named after the ancient Qiantang County (now Hangzhou), it is one of the main cradles of Wuyue culture.

Qiantang River is the largest river in Zhejiang Province, the source of the naming of Liangzhe Road in Song Dynasty, and the source of the provincial name when Zhejiang was established in the early Ming Dynasty. It starts from Xin 'anjiang in the north and is 588.73 kilometers long. It starts from Ma Jinxi in the upper reaches of Qujiang River in the south, with a total length of 522.22 kilometers. From the source, it flows through southern Anhui Province and Zhejiang Province, with a drainage area of 55,058 square kilometers, and flows into the East China Sea via Hangzhou Bay.

River basin survey

Qiantang River Basin is adjacent to the southeast coast of China and located in the subtropical monsoon climate zone, with an average temperature of 65438 07℃ and dry weather. In summer, there are many southeast winds, high temperature, strong light and humid air; Cyclone activity is frequent in spring and autumn, and the temperature changes greatly. There are many frontal rains in spring and early summer, and many typhoons in summer and autumn. The direction of monsoon circulation is basically orthogonal to the direction of the main mountains, and the mountains play a role in blocking the cold current and typhoon in the north.

The annual average precipitation is 1600mm, in which it is rainy from April to June, accounting for 50%, which is prone to floods. From July to September, it accounts for 20%, with frequent droughts and large annual and inter-annual changes in river runoff. For example, the ratio of measured annual runoff at Tibu Station on Fuchunjiang Road (control area 3 1700 square kilometers) is 5: 1.

Reference to the above content: Baidu Encyclopedia-Qiantang River