Math lab tool for calculating of Tide

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indika kathaluwa weligamage 2018-9-10

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回答： Abdulla 2023-8-20

I have 12 years of 1 min frequency tide/sea level data. Is there any tool box to calculate, Highest Astronomical tide level , Mean high water spring ,mean high water neap, mean low water neap, mean high water spring, lowest astronomical tide level, Seasonal variation. Highly appreciate your quake response.

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Answer 1

Gabriel Ruiz-Martinez 2021-7-9

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https://ww2.mathworks.cn/matlabcentral/answers/418305-math-lab-tool-for-calculating-of-tide#answer_743808

Hi Indika,

if you have a water level record of 12 years, you can use the Rich Pawlowicz's T-Tide Matlab toolbox to analyze your data.

The toolbox can be downloaded from Pawlowicz's page:

T_Tide Harmonic Analysis Toolbox

I little late, but I hope this toolbox can be useful to other people, interested in tides.

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Siegmund Nuyts 2022-12-19

Hey, I'm just checking the T_Tide toolbox.

How can I get the basic parameters (high tide, low tide, mean high spring, ...) from this?

indika kathaluwa weligamage 2022-12-20

编辑：indika kathaluwa weligamage 2022-12-20

The programe generated result shows as following, tide freq , amp , amp_err , pha , pha_err , snr,

Then you have to calculate using each componant S2,M2,K1,O1.....etc, 2(m2+S2) = Spring, 2(m2-S2)= Neap, form factor =ratio of K1+o1 to m2+s2, please read : Hicks, S. D. (2006). Understanding Tides. Physical Ocean for Operational oceanographic Product and Service, National Oceanic and Atmospheric Administration, National Ocean Service., U.S.A

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