[IGSMAIL-6746] ITRF2013 Call for Participation

[Zuheir Altamimi]

Dear Colleagues,

Please be informed that the ITRF2013 Call for Participation is
now released and could be retrieved at the ITRF web site, using
the following link:

http://itrf.ign.fr/ITRF_solutions/2013/CFP-ITRF2013-27-03-2013.pdf

In addition to the solicited global solutions from the four
space geodesy techniques (to be provided by the Technique
Services), we also solicit and encourage the owners of
co-location sites to consider conducting new local tie surveys
using the most up to date survey methods. Indeed, the local
ties available at the ITRS Center for a certain number of
co-location sites are now old by 10 to 20 years. In this
respect, we would greatly appreciate the contribution of the
national mapping and space agencies investing and operating
co-location sites, which constitute the main foundation of the
ITRF. More details regarding the local tie survey are available
in the ITRF2013 CfP.

Cordially
Zuheir Altamimi

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Zuheir Altamimi
Head, IERS ITRS Center
Institut National de l'Information Géographique et Forestière (IGN)
Université Paris Diderot
UFR STEP / IPGP / LAREG
Bâtiment Lamarck A
35 rue Hélène Brion
Case 7071
75205 Paris Cedex 13
Tel +33 (0) 1 57 27 53 28
email: zuheir.altamimi at ign.fr
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