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Remove stations with tidal range < 2cm#61

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bkeepers merged 1 commit intomainfrom
micro-tides
Feb 19, 2026
Merged

Remove stations with tidal range < 2cm#61
bkeepers merged 1 commit intomainfrom
micro-tides

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@bkeepers bkeepers commented Feb 19, 2026

I almost deleted the stations with micro tides in #49, but decided to wait and see. Here's a quick comparison of different thresholds:

Threshold Cumulative removed % of total Additional vs prev
1cm 260 stations 7.4% +260
2cm 426 stations 12.1% +166
3cm 510 stations 14.5% +84
4cm 568 stations 16.1% +58
5cm 618 stations 17.5% +50

The big cluster is right at the bottom (<1cm) with 260 stations clearly non-tidal. Each additional centimeter above that removes progressively fewer stations, with diminishing returns. The 2cm threshold sits right after the first natural step, capturing most of the noise (+166) while staying well below many lagitimate Baltic/Mediterranean stations.

cc #60 @RooieDirk

@bkeepers bkeepers merged commit 678654a into main Feb 19, 2026
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@bkeepers bkeepers deleted the micro-tides branch February 19, 2026 12:20
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