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A surge forecast is run daily every 6 hours, e.g. at 00:00, 06:00, 12:00. 18:00. The -6 peak occures at 7:15, it will use the surge forecast at 06:00, which is the closest forecast and use the value at 7:15 in the tidal correction transformation.
THe The tidal correction transformation, the XML configuration is also attached to this page. The output of the transformation is a single value, which has the timestamp of the first next peak.
The coefficients are configured as location attributes in a csv file, which is added to the LocationSets:
