2020 National Day Qiantang River Tide Watching Schedule

The back tide is also one of the scenery of tide watching, and the back tide is more powerful and has a more magnificent scenery. During the Mid-Autumn Festival and the National Day this year, there will also be a back tide at the seawall on the north bank of the Qiantang River in Yancang, Hangzhou. The tidal scenery appears, and interested friends can also go and watch it. Let’s take a look at the tide watching schedule during the National Day. Overview of the 2020 National Day Tide Watching Schedule

This forecast point is located near the seawall on the north bank of the Qiantang River in Laoyancang, Yancang Town, Haining City. There is a long "T-shaped dam" upstream of the bend in this river section that cuts directly into the river. The heart is like a giant arm that can turn the tide. The tide reaches this point and rushes to the head of the T-shaped dam, roaring and leaping like ten thousand lions, creating thousands of waves. Then the tide turned and rushed back to the pond bank, rushing towards the people watching the tide on the top of the pond. The back tide in Yancang is strong, so tide watching safety cannot be taken lightly. Especially if there is a typhoon during the spring tide, the back tide in Old Yancang may still cross the top of the pond and climb over the retaining wall, so special attention should be paid to tide watching safety. During the spring flood season in this area, you may see the famous "first-line tide", "returning tide" and "sky-high tide" of the Qiantang River. Tides occur every day, and the best viewing time is from the first to fifth and fifteenth to twentieth days of each month of the lunar calendar. Tide surges are dangerous. Please pay attention to the warning signs in the tide watching area and follow the management of local tide-proof management personnel. Tide watching guide

Tide watching address: Seawall on the north bank of Qiantang River in Laoyancang, Yancang Town, Haining City (search "turning back tide" in navigation)

Tide characteristics: "first-line tide", " "Returning Tide", "Sky-Sky Tide". What is "Returning Tide"

The tide of Qiantang River going upstream from Yanguan will reach the next tide-watching spot, Laoyancang. The geographical environment of the old Yancang is different from that of Yanguan. The river in Yanguan is straight and straight, and the tide advances westward without any hindrance. However, on the river of the old Yancang, for the purpose of reclamation and seawall protection, a 660-meter-long river was built. The roaring tide will be reflected and turned back after encountering obstacles, where it will violently hit the opposite dam, and then roll back with the force of Mount Tai, falling on the westward rapids, forming a row of "snow mountains" , running back eastward at lightning speed, with a roar like a lion, shaking the earth and the earth. This is the turning tide. What is the reason for the formation of the "turning tide"

The mouth of the Qiantang River is wide on the outside and narrow on the inside, shaped like a trumpet. At the mouth of Hangzhou Bay (Wangpanyang), it is about 100 kilometers wide, but on the river near Yanguan Town, Haining, it is only about a few kilometers wide. When a large amount of tidal water from the outer sea pours into the narrow river, the water surface in the bay will quickly rise, and the water flowing out of the Qiantang River will be blocked and difficult to escape, which in turn will increase the water level. On the other hand, when the tide enters the Qiantang River, a sand ridge across the river mouth becomes a wall, which suddenly slows down the progress of the tide, and the tide behind it surges up quickly, forming a back wave pushing the front wave, and the tide head is also It gets higher and higher, forming a turning tide.