Purpose

• Show time series of Zenith Path Delay (ZPD) parameters derived from the EPN combined solution

Procedure

• Combination of daily SINEX TRO files of the individual LACs solutions on a weekly basis
• Weak ZPD estimates of LACs solutions are excluded because of a standard deviation exceeding 15 mm
• Outliers of the input solutions are excluded before the combination
• Site-specific solutions of a single LAC eliminated for particular days if the standard deviation of the series exceeds 20 mm
• ZPD values of the combined solution exceeding a standard deviation of 20 mm were investigated for outliers

Solutions

• Results from 1996 until end of 2006 coming from EPN REPRO 1.
• Results from 2007 until present coming from the routine operation.
• Note that the number and composition of the LACs contributing to the combined solution for this station may differ between reprocessing and routine operation.

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