GCOS Reference Upper-Air Network

Task Team on Site Intercommunication and Reporting

A Task Team of AOPC Working Group on GRUAN (WG-GRUAN)


The GCOS/WCRP Atmospheric Observation Panel for Climate (AOPC) Working Group on the GCOS Reference Upper Air Network (WG-GRUAN) was established in 2006 in recognition of the importance of initiating reference-quality observations of atmospheric column properties, in particular temperature and water vapour, from the surface into the stratosphere to enhance the monitoring and understanding of climate variability and change. A GRUAN Implementation Plan was published in July 2009 covering the period until 2013. At the second Implementation and Coordination Meeting held in Payerne, Switzerland in March 2010 the Working Group, Lead Centre and initial sites agreed to the instigation of a number of task teams.

The task team on site intercommunication and reporting exists to provide and maintain a convenient mechanism for each GRUAN site to communicate with other sites, the WG-GRUAN and the Lead Centre, and for the WG-GRUAN and Lead Centre to disseminate information to all GRUAN sites through their task team representative.  Each site is encouraged to have one representative on this task team and if possible, to provide other task teams with knowledgeable members such that each site has wide-ranging representation within GRUAN. The task team on site intercommunication and reporting should include a shared member from the task team on measurement schedules, preferably from an institution/program that is under-represented within GRUAN, so that each task team is promptly informed about any recent activities of the other.

The success of GRUAN is critically dependent on the efficiency of communication between sites, the WG-GRUAN and the Lead Centre.  Sites experiencing problems, concerns, breakthroughs in best practices and/or important discoveries are expected to initially communicate these to the task team on site representation.  After internal discussion, the task team will communicate this information to the appropriate GRUAN representatives.


Under the auspices of the WG-GRUAN the task team was established to:

Reporting and governance



(as at 2020-09-16)

Site Name
Boulder, USA Dale Hurst (co-chair)
AWI/ Ny-Ålesund, Norway Marion Maturilli (co-chair)
Beltsville, USA Belay B. Demoz
Cabauw, Netherlands Arnoud Apituley
Lauder, New Zealand Richard Querel
Sodankylä, Finland Rigel Kivi
Potenza, Italy Fabio Madonna
Payerne, Switzerland Gianni Martucci
Tateno, Japan Junji HISAMITSU
ARM Sites, USA Evan Keeler
Xilinhot, China Rongkang Yang
Lindenberg, Germany Ruud Dirksen
Australian sites Matt Tully
Réunion Island, France Stephanie Evan
Singapore Shwei Lin Wong
Dolgoprudny, Russia Nadeschda Krestyanikova
Trappes Palaiseau, France Jean-Charles Dupont
Tenerife, Spain Miguel Hernández Martínez de la Peña
Syowa, Japan Yoshinobu Tanaka
Minamitorishima, Japan Junji HISAMITSU
Neumayer, Antarctica (DE) Holger Schmithüsen
Ross Island, Antarctica (NZ, US) Richard Querel
Hong Kong, China David Lam
Dakar, Senegal Seydi Ababacar Ndiaye

Presentations and Reports

Terms of reference