Major Tidal Constituents
Constituent |
Doodson Number |
Frequency (cpd) |
Description |
|---|---|---|---|
sa |
056.554 |
0.00273791 |
Solar annual |
ssa |
057.555 |
0.00547582 |
Solar semiannual |
mm |
065.455 |
0.03629165 |
Lunar monthly |
msf |
073.555 |
0.06772638 |
Lunisolar synodic fortnightly |
mf |
075.555 |
0.07320220 |
Lunar declinational fortnightly |
mt |
085.455 |
0.10949385 |
Termensual |
2q1 |
125.755 |
0.85695241 |
Smaller elliptical diurnal |
σ1 |
127.555 |
0.86180932 |
Lunar variational diurnal |
q1 |
135.655 |
0.89324406 |
Larger lunar elliptical diurnal |
ρ1 |
137.455 |
0.89810097 |
Larger lunar evectional diurnal |
o1 |
145.555 |
0.92953571 |
Lunar diurnal |
τ1 |
147.555 |
0.93501153 |
|
m1 |
155.555 |
0.96613681 |
Smaller lunar elliptical diurnal |
χ1 |
157.455 |
0.97130317 |
Smaller evectional diurnal |
π1 |
162.556 |
0.99452418 |
Solar elliptical diurnal |
p1 |
163.555 |
0.99726209 |
Principal solar diurnal |
s1 |
164.555 |
1.00000000 |
Raditional solar diurnal |
k1 |
165.555 |
1.00273791 |
Principal declinational diurnal |
ᴪ1 |
166.554 |
1.00547582 |
Smaller solar elliptical diurnal |
φ1 |
167.555 |
1.00821373 |
Second-order solar diurnal |
θ1 |
173.655 |
1.03417265 |
Evectional diurnal |
j1 |
175.455 |
1.03902956 |
Smaller lunar elliptical diurnal |
oo1 |
185.555 |
1.07594011 |
Second-order lunar diurnal |
ϵ2 |
227.655 |
1.82825558 |
|
2n2 |
235.755 |
1.85969032 |
Second-order lunar elliptical semidiurnal |
μ2 |
237.555 |
1.86454723 |
Lunar variational |
n2 |
245.655 |
1.89598197 |
Larger lunar elliptical semidiurnal |
ν2 |
247.455 |
1.90083888 |
Larger lunar evectional semidiurnal |
m2 |
255.555 |
1.93227362 |
Principal lunar semidiurnal |
λ2 |
263.655 |
1.96370835 |
Smaller lunar evectional |
l2 |
265.455 |
1.96856526 |
Smaller lunar elliptical semidiurnal |
t2 |
272.556 |
1.99726209 |
Larger solar elliptical semidiurnal |
s2 |
273.555 |
2.00000000 |
Principal solar semidiurnal |
r2 |
274.554 |
2.00273791 |
Smaller solar elliptical semidiurnal |
k2 |
275.555 |
2.00547582 |
Lunisolar declinational semidiurnal |
η2 |
285.455 |
2.04176747 |
|
m3 |
355.555 |
2.89841042 |
Principal lunar terdiurnal |
From Cartwright and Edden [9], Cartwright and Tayler [10], Doodson and Lamb [16]