# Harmonic analysis on observation datasets

**URL:** <https://nemo-ocean.discourse.group/t/harmonic-analysis-on-observation-datasets/91>\
**Category:** Uncategorized\
**Tags:** tools, DIA\
**Created:** [17 June 2021 11:57 UTC](https://nemo-ocean.discourse.group/t/harmonic-analysis-on-observation-datasets/91 "2021-06-17T11:57:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nicolas\_Gonzalez](https://avatars.discourse-cdn.com/v4/letter/n/7cd45c/32.png) [@Nicolas\_Gonzalez](https://nemo-ocean.discourse.group/u/Nicolas_Gonzalez)\
**Post date:** [17 June 2021 11:57 UTC](https://nemo-ocean.discourse.group/t/harmonic-analysis-on-observation-datasets/91/1 "2021-06-17T11:57:25Z")

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Dear all,

I am currently using the harmonic analysis of tidal constituents implemented in NEMO (`key_diaharm`). I was wondering if this module was recoded in another language (python for example) or if a standalone version has been implemented. The idea would be to perform the NEMO harmonic analysis on observation datasets.

Thank you in advance for your help.

Nicolas

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**Author:** ![jchanut](https://yyz2.discourse-cdn.com/free1/user_avatar/nemo-ocean.discourse.group/jchanut/32/9_2.png) [@jchanut](https://nemo-ocean.discourse.group/u/jchanut)\
**Post date:** [17 June 2021 14:12 UTC](https://nemo-ocean.discourse.group/t/harmonic-analysis-on-observation-datasets/91/2 "2021-06-17T14:12:55Z")

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T\_tide package (written in Matlab) was widely used for tidal harmonic analysis. Check this out maybe (if you prefer python):

> **[GitHub - moflaher/ttide\_py: A direct conversion of T\_Tide to Python](https://github.com/moflaher/ttide_py)**
>
> A direct conversion of T\_Tide to Python. Contribute to moflaher/ttide\_py development by creating an account on GitHub.

I haven’t tested it.