tide table

TIDES Tidal coefficient

How do tides form? types of tides and influence sport fishing
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TIDES WHAT 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 sun and moon parameters: 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 2024

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 2024.

DAY JAN FEB MAR APR MAY JUN
1545152485751373444486972
2494744414641353853607679
3454339383634455267758183
4434338403335617082888585
5434544504047808893978685
6475156635665961031001018482
75458707874831081121011008077
863688591929911311398947471
972779710210611111110790846763
1081851051081151161029579736056
118891108107116113888066605350
129293105100109103716354494745
13939295889587544744404443
14908880727868403538374344
15848064565950323137394547
16757048424235333641454952
17656038363130404548525457
18565236393235515656606063
19494843484046616563676669
20495053585257707470737274
21535663686368778075777677
22596272757276828478797979
23666978818083848579797979
24727483848586848378777877
25767785858787817975727674
26787884838785767269667270
27787781788381686363606867
28767475717773585358566564
29727067626863494555556362
3067635852424256586262
31605646416165
DAY JUL AUG SEP OCT NOV DEC
1636461657780838582817676
2666869728284868680787573
3707275778585868576737269
4737579808584838169656764
5767680808280787461566259
6767680787773706552485755
7757477746965605544415455
8727072686054494440425658
9686565614943393445506063
10636057523834323356636770
11575448443131364271787477
12514840373338505884908083
13464435354553677795998586
1442413740617085941011028787
154243455179881011071021008685
16454758659610311111397948381
175155727910911311411289837875
185964869311511610910477717167
19697498103114110989165596359
20788210610710598837453485652
2186891081068981655744414946
229193103987162494340404443
23939392855345383440424242
24918977693834343645484344
25868260523334394351544648
26777246413843485358615154
27666138384954586264675760
28565240446065677069716467
29494849547074747773747073
30495160657881798175767577
315457697382827980
[ 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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