ENCYCLOPEDIA ARTICLE: Earth tides

Table 1: Parameters for some equilibrium tides
Species Darwin symbol Doodson number Period Amplitude factor, b
Long period
Lunar
055565
18.6 y
0.066
Sa
056554
1 y
0.012
SSa
057555
½y
0.073
MSm
063655
31.85 d
0.016
Mm
065455
27.55 d
0.083
MSf
073555
14.77 d
0.014
Mf
075555
13.66 d
0.156
 
13.63 d
0.065
Diurnal
O1
145555
25.82 h
0.377
P1
163555
24.07 h
0.176
K1
165555
23.93 h
0.531
Semidiurnal
N2
245655
12.66 h
0.174
M2
255555
12.42 h
0.908
S2
273555
12.00 h
0.423
K2
275555
11.97 h
0.115


ENCYCLOPEDIA ARTICLE: Earth tides

Table 2: Earth tide parameters for different Earth models
Model h k l k/h δ γ l/h
Alsop and Kuo
             
Gutenberg-Bullen
0.619
0.305
0.088
0.493
1.162
0.686
0.142
Jeffreys-Bullen B
0.618
0.304
0.088
0.492
1.162
0.686
0.142
Jeffreys-Bullen A
0.607
0.299
0.081
0.493
1.158
0.692
0.133
Gutenberg-Bullen A
0.608
0.300
0.082
0.493
1.158
0.692
0.135
Farrell
             
Gutenberg-Bullen
  Earth model
0.3040
0.6114
0.0832
0.497
1.1554
0.6926
0.136
Oceanic mantle
0.3055
0.6149
0.0840
0.497
1.1567
0.6906
0.137
Shield mantle
0.3062
0.6169
0.0842
0.496
1.1576
0.6893
0.136