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tide table

TIDESTidal coefficient

How do tides form? types of tides and influence sport fishing
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TIDESWHAT IS THE TIDAL COEFFICIENT?

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bahía de Fundy y Mont Saint-Michel Tidal range: Bay of Fundy ▲ / Mont Saint-Michel ▼

On the Tide Tables there are tidal coefficients which tell us the amplitude of the tide forecast (difference in height between the consecutive high tides and low tides in any given area).

The highest possible tidal coefficient is 120, corresponding to the greatest high or low tide there can be, excluding meteorological effects. Tidal coefficients are calculated from the following parameters or from the sun and the moon: straight ascension, declination, parallax and the distance between the Earth and the celestial body.

Despite tidal coefficients being the same for the whole planet, they affect the amplitude of the tides in a very different manner, depending on where we are. This variation in amplitude is almost null and void in closed seas, apart from where there is local resonance (e.g. it can be up to 3ft in Venice); it is weak in mid-ocean, but tends to be considerably amplified when extending to the continental coasts.

The greatest tides in the world are produced in the Bay of Fundy, Canada (53 ft) and in the Bay of Mont Saint-Michel, France (50 ft).

The amplitude of the tides varies in space and time.

Saint-Malo Saint-Malo (France)

in space

There are tides of weak intensity (in the areas close to the terrestrial equator, the tides barely reach tens of centimetres). In other places there are tides of high intensity (for example: the French coasts of the Saint-Malo Bay), where they regularly exceed 30 ft.

in time

The coefficient and therefore the amplitude of the tides follow the phases of the moon with slight disparity during waxing and waning moons; and extensive disparity at times of new moon and full moon. The differences in amplitude between low tides and high tides present great contrasts. In Saint-Malo the difference in level between high tide and low tide is reduced to 10 ft in periods of low tides; and goes as high as 40 ft in periods of high tides.



Coeficiente de marea

ANNUAL TABLE TIDAL COEFFICIENT

YEAR 2020

Fishers tend to have ideal values for tidal coefficients depending on each location. We know that large coefficients can produce optimal seabed movements for fishing in some places, but perhaps elsewhere they may drag too much algae and dirt, making fishing impractical.

In the following table find the coefficients of your favorite tides for fishing in the year 2020.

DAY JAN FEB MAR APR MAY JUN
1484544424844373848537580
2434240404037424760688488
3424240433637556375839294
4434646514146728190969596
548525663536089971011059593
65660697569771041091081089188
76569828885931131161081058480
874789398100106116114102977671
9828510110411011411110691856661
108890105105115115999278715753
119293104101112108847564584946
129291979210396675852464443
13908786798879514442404344
14848172657162393739404547
15777258525447363842455053
16686448454138424648525659
17615845463840515556606265
18575649534348606564676871
19565857615358697370737376
20606366706368767976787779
21666974777276828379808080
22727580827982848581818079
23777984848486858480797877
24818185848787838177757573
25828184828685787572697068
26807980778381716766636664
27777574707874625859566362
28726966627066534954526263
29666257536156454352546466
3058555045424456606871
31514741386570
DAY JUL AUG SEP OCT NOV DEC
1737674778485878783817776
2788079818686878679767471
3828482838685858273696965
4848583838380807665606259
5848381807774726855515653
6828078757066635846435150
7777472686156534840395052
8716865615146423840445559
9646157524138353449556469
10575449453534353863717479
11514842393538445178868488
12464438384349596893999294
1343434042576477851041079697
14444546517280941011091099695
154750576388951071121081059390
1653576975101107114116101958682
176165818711011311511289827772
186973929611311210810275686763
19778099102109104958761555854
2083861031039891786949455047
218789101988274615342414543
22898994896557464141434344
23888683774944383845494547
24848170634039404352564952
25777457524145485359635558
26706648464955586266696164
27636047496065677172746769
28585753577074757876777274
29575962667881808278797677
30616471758486838479787879
316771788184847979
[ Coefficient 12 am / Coefficient 12 pm ]
coeficiente bajo
low
coeficiente medio
average
coeficiente alto
high
coeficiente muy alto
very high

Next article: Tide currents
tide table
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