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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 2019

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 2019.

DAY JAN FEB MAR APR MAY JUN
1626462654751636870758284
2676968715661737779838788
3717374766570818486888989
4757678797477878990908987
5777880818083909191908582
6787780808586908988867975
7767579778787878583797268
8737175728685817774706562
9696669668381736765606160
10646163597874625756536062
11585555516965524852526466
12525048466055454554586972
13484745455046485263687577
14464748524443586674797981
15485157644549738184888283
16545971785563889492948383
1764708693717910010496968281
18758199104879510610896947976
19879210811110110710710692897471
20961001121111111131039885806864
21102104109105113112938776716157
2210410310094110105817466605451
2310097877910093676055514846
24938771638678534746434544
25827556497062423740394445
26696343395447353438394749
27585337374136353741445256
28494739423333414648526064
2946473538505657616872
3049514348616666707680
31555853587478
DAY JUL AUG SEP OCT NOV DEC
1848799101108104978962555349
289911021019892817348434441
3929299968476645638353938
4929093886860494234353940
5888582765347373538424346
6827970644240343646515054
7757159543941404456615862
8686551494448495565706670
9626048495257606574777477
10595951546266697481838082
11606157617074778185878486
12626464687780838687878686
13676971738284878887858684
14717376788585888883808279
15757679808584868477737673
16777780808381827868647066
17777779787875747059556361
18767477747167656052506059
19737172696258544949515961
20686666625348454354596366
21636058544441424465716972
22575551474042485577827578
23524945434551627087928082
24474643445967788695978485
254546475275849310099998685
2647495865929910510898968583
275357728010511011011193898179
286267879411411510910785807673
2973781001051151131039775697066
308489108111109103918464586258
31939711111077705551
[ 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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