Second ITGRF Workshop 2026 

Herstmonceux Castle, United Kingdom from  September 14-16th 2026
kindly supported by the British Geological Survey (BGS).

Registration and Accommodation information

This workshop is focused on the realization and representation of the International Terrestrial Gravity Reference Frame (ITGRF) of IAG.

The sessions 2-4 begin with an introductory presentation to provide a starting point for the discussion, which is moderated and minuted. The aim of the workshop is to conclude on further activities and milestones until IUGG 2027 and to establish a committee to develop and maintain the ITGRF.

In Session 1, short reports on the status and progress of national gravity networks, absolute gravity sites, monitoring, gravimeter comparisons etc. are welcome. However, these reports should not exceed a max. of 10 mins total presentation time. For further planning, please inform us in advance by sending a short message including
  country, title and author information 
until 
  Friday, August 22nd 2026
to 
  agrav@bkg.bund.de

Session overview: 


Monday

Tuesday

Wednesday

9:00 - 10:30


Session 2: Realization of the ITGRF 

Discussion and Summary

11:00 - 12:00


Session 3. ITGRF Representation with 
Gravity Networks

Future Activities

12:00 - 13:00

 Lunch

Lunch


13:00 - 17:00

Welcome and Status ITGRF 

Session 1: Review / Reports

Session 4. Operability, Coordination and 
Maintenance of the ITGRF


Evening

Tour Observatory

Banquet


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