World sea levels

Tide Gauge Details - Polynésie Française (French Polynesia) - Hiva_Oa Marquesas

Device description

Name
Polynésie Française (French Polynesia) - Hiva_Oa Marquesas
Country
Polynésie Française (French Polynesia)
Group
TD UNESCO
Lat/Lon
-9.8047 / -139.034393

Last measured values

Time(UTC)
03 May 2025 08:55:00
Latency
4688
Level
2.26

Harmonics

Points count
6154566
First date
29 Apr 2011 19:11
Last date
03 May 2025 08:55

Click on following link to see data:

Harmonics Constatns
Comp # Period (day) Cos factor (m) Sin factor (m)
0 0.00000 1.47291E+0 0E+0
1 0.12877 1.79177E-4 -4.42604E-4
2 0.12886 -3.76019E-4 -3.02059E-4
3 0.12938 9.46299E-4 -2.09705E-4
4 0.14707 4.49409E-4 -5.85131E-5
5 0.16841 1.68662E-5 1.56354E-3
6 0.16857 5.67323E-4 -1.11302E-4
7 0.17036 1.6611E-4 -4.5734E-4
8 0.17052 -6.27022E-4 -7.11704E-4
9 0.17251 1.45529E-4 1.48406E-3
10 0.17470 -2.67168E-4 2.90855E-5
11 0.19989 5.60598E-4 -4.36634E-4
12 0.20545 9.45502E-4 1.24344E-3
13 0.24966 1.12609E-3 3.14732E-4
14 0.25000 1.72918E-3 1.79164E-3
15 0.25395 4.00967E-4 -2.1655E-4
16 0.25431 -7.38921E-4 -1.7993E-3
17 0.25631 2.33663E-4 1.04169E-3
18 0.25667 6.26012E-4 6.87007E-4
19 0.25876 3.47034E-4 -1.08827E-3
20 0.26122 -4.9506E-4 -9.13243E-4
21 0.33303 4.8056E-4 4.46902E-4
22 0.34071 -1.22718E-3 -1.24725E-4
23 0.34135 -3.11215E-4 1.57614E-4
24 0.34502 6.29511E-3 -1.96152E-3
25 0.34943 9.39789E-4 -3.99168E-3
26 0.48977 -3.44175E-3 -5.68718E-4
27 0.49109 -7.28198E-4 -1.66728E-3
28 0.49863 -2.16223E-2 -2.96234E-4
29 0.49932 -3.66936E-3 -1.36179E-4
30 0.50000 5.63785E-2 2.26106E-2
31 0.50798 -3.24532E-3 -9.13494E-3
32 0.50924 -7.48647E-4 1.48409E-3
33 0.51606 -5.14432E-3 8.42342E-3
34 0.51679 -1.52653E-3 8.70972E-3
35 0.51753 3.45215E-1 -1.63396E-1
36 0.51826 -6.53833E-3 -2.32729E-4
37 0.52608 1.93587E-2 -6.54315E-3
38 0.52743 -5.49859E-2 -6.34937E-2
39 0.53632 -5.04125E-3 -8.58966E-3
40 0.53772 -9.41954E-3 8.11457E-3
41 0.54697 -1.94356E-3 1.18011E-3
42 0.54843 -3.86664E-4 3.94692E-3
43 0.89909 2.34868E-3 -1.30522E-4
44 0.92942 1.54871E-3 1.08987E-3
45 0.93417 -1.16162E-3 2.42344E-3
46 0.96244 2.88176E-3 1.22719E-3
47 0.96696 -2.4737E-3 -8.97304E-4
48 0.99185 -1.39711E-3 2.52829E-3
49 0.99455 -3.53068E-3 -2.91514E-3
50 0.99727 -3.02942E-2 -3.48092E-2
51 1.00000 7.37751E-3 3.7786E-3
52 1.00275 -5.6293E-3 -8.4603E-3
53 1.00551 -7.87183E-4 1.42555E-4
54 1.02954 -2.43144E-3 -5.73189E-4
55 1.03472 2.32595E-3 -2.18382E-3
56 1.04061 3.70602E-3 1.71905E-3
57 1.06951 -5.42091E-3 -2.20002E-3
58 1.07581 -9.71778E-3 2.02181E-2
59 1.11346 1.70883E-3 1.26468E-3
60 1.11951 4.42211E-3 -9.28333E-4
61 1.16035 4.85481E-4 1.15641E-3
62 1.16693 1.29906E-6 -3.39793E-5
63 1.21136 6.01831E-4 4.64262E-4
64 13.66079 5.91359E-3 -2.70102E-2
65 14.76529 3.78591E-3 -3.80098E-3
66 27.55455 -6.36105E-3 -1.05949E-2
67 31.81193 -3.50707E-2 2.33372E-2
68 182.62118 -2.29189E-1 2.13759E-1
69 365.25998 -1.73261E-1 2.09714E-1
Mathematical Formula
Tide calculation mathematical formula
Visual Basic Syntax
Function EstimateTideValues() As [Function]
                        Dim Pi As [Double] = Math.PI
                        Dim sum As [Double] = harmonics(0, 1)
                        For k As Int16 = 1 To harmonics.GetUpperBound(0)
                        Dim period As [Double] = 2 * Pi / harmonics(k, 0)
                        Dim coefCos As [Double] = harmonics(k, 1)
                        Dim coefSin As [Double] = harmonics(k, 2) 
                        sum = sum + coefCos * Math.Cos(time * period)
                        sum = sum + coefSin * Math.Sin(time * period)
                        Next
                        Return sum
                        End Function
C# Syntax
double EstimateTideValues()
                        {
                        double Pi = Math.PI;
                        double sum = harmonics[0, 1];
                        for (int k=1; k <= harmonics.GetUpperBound(0); k++)
                        {
                        double period = 2 * Pi / harmonics[k, 0];
                        double coefCos = harmonics[k, 1];
                        double coefSin = harmonics[k, 2];
                        sum += coefCos * Math.Cos(time * period);
                        sum += coefSin * Math.Sin(time * period);
                        }
                        return sum;
                        }

Axis ranges

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