Traditional Culture Encyclopedia - Almanac inquiry - Who can provide the tide schedule in the waters near Dongying?

Who can provide the tide schedule in the waters near Dongying?

Dongying sea area is semi-enclosed, and irregular semidiurnal tides appear in most sections along the coast twice a day. The daily high and low tide range is generally 0.2 ~ 2m, and the high tide mostly occurs in March ~ April and July ~165438+1October, with the highest tide level exceeding 5m. Storm surge disasters are prone to occur here. In the past hundred years, there have been seven storm surge disasters with tides higher than 3 or 5 meters.

Extended data:

The regular semidiurnal tide fluctuates once every 12 hour.

The simple calculation method of tidal time is: maximum tidal time = lunar calendar ×0.8, minimum tidal time = maximum tidal time +/-6.

Example:

Suppose today is 15 of the lunar calendar, and the highest climax time is = 15×0.8= 12, that is,12 at noon and midnight; The lowest ebb time is 6 am and 6 pm. Close observation time is from 4 am to 8 am and from 4 pm to 8 pm.

Another example is:

1, 2000/ 12/3 1: The lunar calendar date is the sixth day, so the high tide time is 6*0.8=4.8, which means that the high tide time is 4: 48 in the morning and evening.

2.200110/28: The lunar calendar date is 12, so the high tide time is 12*0.8=9.6, which means that the high tide time is 9: 36 in the morning and evening.

3, 2002/11,the eighteenth day of the lunar calendar, the high tide time is (18- 15)* 0.8 = 2.4, which means that the high tide time is at 2: 24 in the morning and afternoon.