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CIMO Expert Team Meeting on Upgrading the Global Radiosonde Network

This, the first session of this team, was held in Geneva, Switzerland from 3-7 November, 2003

For the WMO report of this meeting please go to: http://www.wmo.ch/web/www/IMOP/reports.html

HMEI was represented by:
§ Mr. Rémy Pepin from Modem
§ Mr. Joe Parini from International Met System
§ Mr. Erkki Järvinen from Vaisala OYJ
§ Ms. Chris Charstone from the HMEI Secretariat

HMEI members input was well received at the meeting and HMEI achieved a significant role, as the ongoing coordinator between the various experts on the team and our membership. It was also suggested that HMEI would be a useful participant in the CBS Steering Committee on Frequencies.

ET Work Plan Items resulting from this meeting and involving HMEI participation are:

§IMPROVE GLOBAL RADIOSONDE NETWORK
Coordinate with HMEI on soliciting agreement on the BUFR code table and descriptors for international use.

§STANDARDIZE DATA PROCESSING RADIOSONDE ALGORITHMS
NMSs and manufacturers to be encouraged to provide description and details of algorithms for significant level selection.

Coordinate with HMEI in investigating the consistency of Radiosonde algorithms for encoding TEMP messages.

§TECHNICAL SUPPORT FOR RADIO FREQUENCY SHARING POLICY FOR WRC
Review, in cooperation with HMEI, the current and new ground based systems and their frequencies used.

  Consult with HMEI and SG_RFC to develop spectrally efficient radiosondes, i.e. develop Radiosonde transmitter and receiver standards to be used.