Tide Gauge Details - Solomon Islands - Honiara

Device description

Name
Solomon Islands - Honiara
Country
Solomon Islands
Group
TD UNESCO
Lat/Lon
-9.4289 / 159.955505

Last measured values

Time(UTC)
27 Nov 2022 01:53:00
Latency
3520
Level
1.14

Harmonics

Points count
4997624
First date
11 Mar 2011 05:00
Last date
27 Nov 2022 01:53

Click on following link to see data:

Harmonics Constatns
Comp # Period (day) Cos factor (m) Sin factor (m)
0 0.00000 8.63142E-1 0E+0
1 0.12877 -1.12856E-4 -2.44522E-4
2 0.12886 -2.84621E-4 -2.73888E-4
3 0.12938 2.91303E-5 -2.47205E-4
4 0.14707 -9.86295E-5 2.06843E-4
5 0.16841 4.21785E-4 -4.74435E-4
6 0.16857 -9.76497E-4 -4.00166E-4
7 0.17036 6.416E-4 -1.9893E-4
8 0.17052 -1.50969E-3 -2.46142E-4
9 0.17251 1.24407E-4 8.59534E-4
10 0.17470 -4.04584E-4 -2.31026E-4
11 0.19989 1.36802E-3 5.59461E-4
12 0.20545 6.82472E-4 -1.64274E-4
13 0.24966 -9.59093E-4 1.14439E-3
14 0.25000 -1.12381E-4 2.75648E-5
15 0.25395 6.90652E-4 2.35737E-3
16 0.25431 1.40738E-4 -2.19634E-3
17 0.25631 3.56433E-4 -5.00254E-4
18 0.25667 -9.39899E-4 -2.96336E-4
19 0.25876 -4.4693E-3 3.22899E-4
20 0.26122 1.16642E-3 1.92525E-3
21 0.33303 -8.04045E-4 -2.76002E-3
22 0.34071 -2.05127E-3 1.45652E-4
23 0.34135 -1.1287E-3 8.04388E-4
24 0.34502 -2.84894E-3 -4.28631E-3
25 0.34943 1.0609E-3 -7.46483E-4
26 0.48977 -2.0483E-4 1.35445E-3
27 0.49109 5.27846E-4 1.52232E-3
28 0.49863 1.68092E-2 1.20816E-3
29 0.49932 -2.78595E-4 -1.09265E-3
30 0.50000 -6.75196E-2 -2.73279E-2
31 0.50798 5.86622E-3 3.81533E-4
32 0.50924 -1.47714E-3 -3.8257E-3
33 0.51606 1.26487E-3 2.70014E-3
34 0.51679 -1.11045E-3 -8.28997E-5
35 0.51753 -1.75583E-2 4.70766E-2
36 0.51826 5.47068E-4 3.72348E-4
37 0.52608 -1.73012E-3 -2.08066E-3
38 0.52743 -6.39287E-3 1.04332E-2
39 0.53632 -4.38134E-3 -2.27244E-4
40 0.53772 2.58403E-3 9.54598E-5
41 0.54697 -3.7354E-4 1.85241E-3
42 0.54843 -2.25344E-4 2.10909E-4
43 0.89909 -1.05317E-3 -2.58009E-4
44 0.92942 4.5588E-3 -4.83502E-3
45 0.93417 -1.78436E-4 1.63025E-3
46 0.96244 -7.87157E-3 7.15832E-3
47 0.96696 3.66223E-4 2.30509E-3
48 0.99185 1.2224E-3 -3.53838E-3
49 0.99455 -5.37098E-3 2.01535E-3
50 0.99727 1.51625E-1 1.40705E-1
51 1.00000 -2.47693E-3 7.68978E-3
52 1.00275 4.58625E-2 5.86337E-2
53 1.00551 6.07882E-3 8.30751E-3
54 1.02954 5.68323E-4 -7.20474E-4
55 1.03472 6.92016E-3 -4.94355E-3
56 1.04061 -1.5108E-3 -1.32331E-3
57 1.06951 3.74007E-3 -2.12941E-3
58 1.07581 8.12398E-2 -4.52888E-2
59 1.11346 1.79237E-3 -9.44388E-4
60 1.11951 -1.01954E-2 -1.37484E-2
61 1.16035 -6.09349E-4 -1.30483E-3
62 1.16693 -1.43316E-3 2.27484E-3
63 1.21136 -2.06236E-4 5.37296E-4
64 13.66079 -2.04943E-3 -2.12452E-3
65 14.76529 -8.23991E-3 -3.78518E-3
66 27.55455 5.32586E-3 1.79146E-2
67 31.81193 -2.78849E-3 -1.09555E-3
68 182.62118 -6.94267E-2 -9.79336E-3
69 365.25998 1.31451E-1 -4.86337E-2
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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