Purpose

• Show the agreement between the Zenith Path Delay (ZPDs) solutions produced by the different EPN Analysis Centres (ACs)
• Reflect changes in, e.g. used options, analysis procedures etc.

Procedure

• EPN ACs are estimating ZPDs on a daily basis
• These estimates are combined on a weekly basis to create the EPN combined ZPD solution.
• The mean biases show the mean agreement of the daily AC solutions to the weekly combined ZPD solution

Solutions

• Results come from the weekly generated routine data analysis. They are influenced by analysis changes.