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IERS Message No. 215                                   November 13, 2012
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IERS Working Group on Site Coordinate Time Series Format


In April 2012, following the discussion at the Unified Analysis Workshop 
(UAW) 2011 in Zurich, the IERS Directing Board decided to establish 
a Working Group on Site Coordinate Time Series Format.

The aim of the working group is to define a common exchange format for
station coordinate time series of the geodetic techniques (DORIS, GNSS,
SLR, VLBI...) and ensure that the format contains the necessary
information (data and meta-data) to be easily used or converted for the
web tools of the IAG Services (GGOS, IERS, IDS, IGS, ILRS, IVS). The
format must allow the comparisons of time series between GNSS, SLR, VLBI
and DORIS, but also with other techniques such as tide gauges records.
Some of the issues that should also be addressed are, e.g., reference
system, time unit, content description...

In order to have the best possible interaction with the groups working
with station coordinate time series, the working group is composed by
representatives of groups providing time series (IAG services and groups
providing web services) and people from the users community.

The chair of the WG is Laurent Soudarin (Director of IDS Central
Bureau). The WG is currently beginning its work. A version of the format
will be proposed at the IERS DB meeting in Vienna next year.
  
The Charter and the list of members can be found at
http://www.iers.org/WGSCTSF


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