The cause of the tide of the Qiantang River on August 18, how did the tide viewing festival of the Q

The formation of the tide of the Qiantang River and the spectacular scene of the tide are related to the unique geographical environment of Hangzhou Bay.

In ancient times, the Qiantang River entered the sea estuary from Fuyang Stork Mountain only the general tidal rise and fall, and the Yangtze River in the north gradually formed the alluvial plain of Taihu Lake on the north bank of Hangzhou Bay with sediment from the upper reaches, and formed a unique estuary shape with the relatively stable south bank. Now, the Hangzhou Bay Estuary is 100 kilometers away from Nanhuizui on the north bank to Zhenhai on the south bank, and 132 kilometers upstream to Yanguan, the river surface is reduced to a kilometer wide, forming a huge trumpet shape on the plane, the trumpet-shaped estuary structure makes more tides flow into Hangzhou Bay in the daily tides, pushing the sediment deposited near the bay mouth to move into the bay, and slowly forming a sand bar in the estuary section, and the tidal wave entering the bay estuary encounters the obstruction of a sand bar, and the front becomes steep and gushes out of the water surface. The constant back wave pushes the blocked front wave forward. In the same way, due to the shape of the trumpet, the further the mouth of the river shrinks, the greater the difference between the tide and the river surface, and the tide is formed.

Under the action of the moon's gravity, when the tide reaches the vicinity of Yanguan in Haining, the tide head can reach up to more than 3 meters, and it advances upstream at a speed of 5-7 meters per second.

August 18 is the Upper Glare Moon. The upper glare moon can cause a large gravitational pull, resulting in the surface of the Qiantang River**.

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Another point is that the runoff of the Yangtze River is relatively large, and the river water plays a role in fueling the fire.

Earth, Moon, Sun are the result of three actions.

1. Looking at the moon on August 15, the tide at Kwun Tong on August 18, the tide rises and falls like life, and the shock is rolling like the tide.

2. If you want to watch the tide, please go to the Qiantang River, which is guaranteed to shock and excite you, and it is better to act than to be excited.

3. The wide Qiantang River has both calm waves before the tide comes, and there are also slippery white waves rolling when the tide comes, surging, don't hesitate, come, watch the tide.

4. The vast Qiantang water is like smoke, and the tide is all believed in this sentence of August days.

5. To watch the tide, please go to the Qiantang River, to ensure that you are shocked and excited, the heart is not as good as the action of the wide Qiantang River, both before the tide comes, there are white waves rolling, surging. The scene was like a galloping horse, and the sound was like a mountain collapsing and the earth cracking, and the earth shaking. Such a shocking scene is certainly not to be missed.

6. The tide of the Qiantang River, if you want to experience the feeling of heartbeat, August 18, the tide of the Qiantang River is waiting for you.