The cycle of high tide?? What is the high tide time?

A: Due to the periodic changes in the relative positions of the Earth, the Moon and the Sun, the size and rise and fall times of the tides vary from day to day. Due to the different latitudes and the influence of topography, hydrology, meteorology and other factors, the tides in various places also have differences and their own changes.

The Moon is closer to the Earth, and its tidal force is twice that of the Sun, so the tidal phenomenon mainly changes with the movement of the Moon.

This ** has a very precise explanation.

The moon attracts, causing the tides.

High tideThe time is based on the lunar calendar:( early years.

1. xvi) Early period: 0:48;Evening tide: 13:12. :( early years.

2. XVII) Early Tide: 1:36;Evening tide: 14:00. :( early years.

iii. xviii) Early Tide: 2:24;Evening tide: 14:48. :( early years.

iv. xix) Morning Tide: 3:12;Evening tide: 15:36. :( early years.

5. 20) Early period: 4:00;Evening tide: 16:24. :( early years.

vi. xxi) Early period: 4:48;Evening tide: 17:12.

:( early years. vii, xxii) early period: 5:36;Evening tide: 18:00. :( early years.

viii. xxiii) Early period: 6:24;Evening tide: 18:48. :( early years.

ix, XXIV) Early period: 7:12;Evening tide: 19:36.

Rising tide analysisTides are the periodic rise and fall of sea water. Since the tide is the tide during the day and the tide at night, the rise and fall of the sea during the day is called "tide", and the rise and fall of the sea water at night is called "tide". This phenomenon once made the ancients wonder what caused it.

Later, observant people discovered that the tides were delayed for a while every day, and this time was the same as the time when the moon was late every day, so the tides and the moon came to mind.

There is an inevitable connection.

The ancient Chinese geography work "The Classic of Mountains and Seas".

The relationship between tides and the moon has been mentioned, and Wang Chong in the Eastern Han Dynasty wrote his "On Balance".

In the book, it is clearly pointed out: "The rise of the waves also rises and falls with the moon." But until Newton.

It was only after the discovery of the law of gravitation that Laplace mathematically proved that tidal phenomena were indeed caused by the gravitational pull of the sun and the moon, primarily the moon.

The time of high and low tide varies from place to place and every day, but according to the general rule, it is roughly as follows: the first and fifteenth days of the lunar calendar are 12 o'clock in the high tide every year, and the subsequent days are postponed by 50 minutes (because 12 hours are divided equally among the 15 days). The process of high tide is five hours, and the process of low tide is six hours (it takes more than one hour for high and low flat tides), adding up to a high tide cycle of about 13 hours.

Introduction to high tide and low tide.

High tides are a natural phenomenon. The sea water has the phenomenon of high tide and low tide, when the tide is high, the sea water **, the waves are rolling, and the scenery is very spectacular; At low tide, the water quietly recedes, revealing a beach. Rising and low tides generally occur twice a day.

The rise and fall of the sea water occurs during the day and is called the tide during the day, and it is called the tide at night, so it is also called the tide. It is said in an ancient Chinese book that "the water of the sea is the tide in the morning and the tide in the evening". There is a period of time between high tide and low tide when the water level does not rise or fall, which is called flat tide.

Introduction to tides. Tides, a natural phenomenon that occurs in coastal areas, refer to the periodic movement of seawater under the gravitational force of celestial bodies (mainly the moon and the sun). It is customary to refer to the vertical rise and fall of the sea surface as tides, and the flow of sea water in the horizontal direction as tidal currents.

High tide in every place and every day.

It's not the same as low tide.

But there's a general pattern. Fishermen by the sea have a proverb about the ebb and flow of tides:

On the fifteenth day of the first month, the tide falls at noon, and the tide falls on five and six.

The meaning of the phrase "Kuanchun" is that the first and fifteenth days of the lunar calendar are tides at 12 o'clock (including noon and midnight), and they are delayed by 50 minutes each day (because 12 hours are divided equally among the fifteen days).

The meaning of the second sentence is that the process of high tide is 5 hours, and the process of low tide is 6 hours (it also takes more than 1 hour for high and low flat tides), adding up to a high tide cycle of about 13 hours.

Because fishermen do not need a very precise time to go to sea, the above is only an approximate time, and the precise time should be read by the State Maritime Administration.

Tide forecast.