Why is the tide of the Qiantang River the largest in the eighteenth day of the eighth month of the l

From the 16th to the 18th day of the eighth month of the lunar calendar, the sun, the moon, and the earth are almost in a straight line, so the tidal gravitational force on the sea water on this day (the difference between the gravitational force of the moon, the sun or other celestial bodies on the earth's unit mass object and the gravitational force of the earth's centroid on the earth's centroid (sun), or the resultant force of the inertial centrifugal force generated by the earth's movement around the center of mass of the earth and the moon (sun). Maximum.

Beginning in the Han and Wei dynasties (1st to 6th centuries AD) and flourishing in the Tang and Song dynasties (7th to 13th centuries AD), the Qiantang tide view has become a local custom for more than 2,000 years. Especially around the Mid-Autumn Festival, guests from all over the world flock to see the wonders of the Qianjiang tide, which is unprecedented. Haining Yanguan Town, 50 kilometers away from Hangzhou, is the best place to watch the tide.

The Qiantang River tide is a tidal phenomenon. Tides are periodic and regular ebb and flow movements of seawater, which are caused by the attraction of the Moon and the Sun to the seawater on the Earth's surface (there is a gravitational attraction between celestial bodies). The moon is close to the earth and the sun is far from the earth, so the gravitational force of the moon is greater than that of the sun, which is roughly 10:

4．5。When the moon, sun, and earth are in the same straight line, the gravitational forces of the moon and sun add up to make the tide rise higher. The beginning of the lunar calendar every month.

Two or three days after the fifteenth day, the moon, the sun, and the earth are arranged in a straight line, so the tides around the world are generally higher than usual these days. Especially the two or three days after the Mid-Autumn Festival is the time of the year when the earth is closest to the sun, so the autumn tide at this time is the largest of the year.

Summary. Hello friends, this is mainly due to the geographical advantage.

The cause of the tide of the Qiantang River is not only the reason for the time, the location but also the wind

Time: From the 16th to the 18th day of the eighth month of the lunar calendar every year, the sun, the moon and the earth are almost in a straight line, so the sea water is subject to the greatest gravitational force on this day.

Geographical advantage: Qiantang River Zheshan to the outer 12 kilometers section is like a big belly mouth small bottle, the tide is easy to advance and difficult to retreat, the outer mouth of Hangzhou Bay is as wide as 100 kilometers, to the outer 12 sections are only a few kilometers wide, the riverbed in the eastern section of the estuary rises suddenly, the beach is high and the water is shallow.

When a large amount of tide water pours in from the mouth of the Qiantang River, due to the rapid shrinkage of the river surface, the tide does not have time to rise evenly, so it has to push the back wave to push the front wave, layer upon layer, the Qiantang River is related to the sedimentation of more sediment under the water, these sedimentation plays a role in blocking and friction against the tide, making the front slope of the tide steepen, and the speed slows down, so as to form the back wave to catch up with the front wave, and the wave is stacked and surging.

Winds: Southeasterly winds often blow along the coast, and the direction of the wind is roughly the same as the direction of the tide, which contributes to the tide.

Hello friends, this is mainly due to the geographical advantage. The cause of the tide of the Qiantang River is due to the favorable time, location and wind: the time of the day

From the 16th to the 18th day of the eighth month of the lunar calendar every year, the sun, the moon and the earth are almost in a straight line, so the sea water is subject to the greatest gravitational force on this day. Geographical advantage: Qiantang River Zheshan to the outer 12 kilometers section is like a big belly mouth small bottle, the tide is easy to advance and difficult to retreat, the outer mouth of Hangzhou Bay is as wide as 100 kilometers, to the outer 12 sections are only a few kilometers wide, the riverbed in the eastern section of the estuary rises suddenly, the beach is high and the water is shallow.

When a large amount of tide water pours in from the mouth of the Qiantang River, due to the rapid shrinkage of the river surface, the tide does not have time to rise evenly, so it has to push the back wave to push the front wave, layer upon layer, the Qiantang River is related to the sedimentation of more sediment under the water, these sedimentation plays a role in blocking and friction against the tide, making the front slope of the tide steepen, and the speed slows down, so as to form the back wave to catch up with the front wave, and the wave is stacked and surging. Winds: Southeasterly winds often blow along the coast, and the direction of the wind is roughly the same as the direction of the tide, which contributes to the tide.

Summary. The origin of the tide is the gravitational problem between the Earth and the Moon. The moon is at its roundest on August 15, and that's when the tide is at its highest. I only know one thing and hope mine can help you.

The tide of the Qiantang River is a natural wonder of the world, and it is also the most spectacular sea tide. Qiantang tide watching began in the Han and Wei dynasties and has become a local custom. Every year on the eighteenth day of the eighth month of the lunar calendar, the maximum tidal surge, when the tidal flood occurs, the tide surges several meters, and the spectacular scene of stormy waves is breathtaking.

August 18 tide, spectacular world no. This is the famous sentence of the great poet Su Dongpo praising the Qiantang tide. For thousands of years, the Qiantang River has been a strange and unique spectacle, and I don't know how many tourists have been overwhelmed.

The reason for the formation of the Qiantang River tide: first of all, the time of the day, the time of the Qiantang River tide is basically the same every year, why? Because at this point in time, the sun, the earth, and the moon are roughly on the same line, so it will bring great tidal forces, and the tides caused will naturally be large.

Secondly, the geographical advantage, the unique topography of the Qiantang River, which exacerbates the expressiveness of this tide.

Why is there a big tide on the Qiantang River on the 15th day of the eighth month of the lunar calendar? What time is the high tide.

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The origin of the tide is the gravitational problem between the Earth and the Moon. The moon is at its roundest on August 15, and that's when the tide is at its highest. I only know one thing and hope mine can help you.

The tide of the Qiantang River is a natural wonder of the world, and it is also the most spectacular sea tide. Qiantang tide watching began in the Han and Wei dynasties and has become a local custom. Every year on the eighteenth day of the eighth month of the lunar calendar, the maximum tidal surge, when the tidal flood occurs, the tide surges several meters, and the spectacular scene of stormy waves is breathtaking.

August 18 tide, spectacular world no. This is the famous sentence of the great poet Su Dongpo praising the Qiantang tide. For thousands of years, the Qiantang River has been a strange and unique spectacle, and I don't know how many tourists have been overwhelmed.

The reason for the formation of the Qiantang River tide: first of all, the time of the day, the time of the Qiantang River tide is basically the same every year, why? Because at this point in time, the sun, the earth, and the moon are roughly on the same line, so it will bring great tidal forces, and the tides caused will naturally be large.

Secondly, the geographical advantage, the unique topography of the Qiantang River, which exacerbates the expressiveness of this tide.

Every year in. Mid-Autumn Festival.

Before and after, it is the best time for the tide of the Qiantang River, and many people will bring their families to the Qiantang River to watch the tide during the holidays.

Do you know why the tide of the Qiantang River is August 18?

Reason:

The tides are caused by the attraction of the moon and the sun to the sea water on the earth's surface, around the first day of the lunar month and around the fifteenth day of the lunar month, the sun, the moon and the earth are arranged in a straight line, and the attraction of the sun and the moon is combined to attract the sea water on the earth's surface.

Tide Viewing Location:

Haining Yanguan Scenic Area, which is 50 kilometers away from Hangzhou, is the best place to watch the tide, if the time is limited, you can also watch it in the urban area of Hangzhou, the tower and the tower of the Liuhe Tower of the West Continent Calling Lake, the riverside next to the Qiantang River Bridge, and the roadside of Zhijiang Road from the bridge cavity to the south end of Jiuxi are all good places to watch the tide, and a few days before and after the eighteenth day of August of the lunar calendar every year, it is the best period for the Qianjiang tide.

The biggest wave of the Qiantang River tide is **?

A section of the sea pond in the southeast of Yanguan Town, Haining County, every year on the eighteenth day of the eighth lunar month, the tide of the Qianjiang River is the largest, and the tide head can reach several meters. When the tide comes, the sound is like thunder, the mountains and the sea are overwhelmed, like ten thousand horses galloping, it is magnificent.