World Meteorological Organization

WMO 2022 Upper-Air Instrument Intercomparison Campaign (UAII2022)

Information on the campaign, as well as a photo gallery can be found on the UAII-2022 campaign website.

Field campaign

Local information (status: version of 7 July 2022)

Training of operators (version of 27 June 2022)

Attendance on site:

• Manufacturers: 8 - 16 August 2022
• Operators: 9 August-17 September 2022

Important information for the participants and useful information:

• Presentation to manufacturers - Nov/Dec 2021 (Includes updated timelines, material requirements, etc.)
• Data format (Status -  3 December 2021)
• Shipping information
• Frequently Asked Questions (FAQs) (Status - 17 January 2022)

Useful information

• Project Plan endorsed by CIMO Management Group, and related Annexes (Status May 2020)
• Presentation to manufacturers held at the occasion of MTWE 2019, in Geneva
• Concept note for the intercomparison approved by CIMO 18 (2018): WMO-No. 1227 (Recommendation 10 (CIMO-17)).

Letter of Call for nomination of  operators/technicians for UAII-2022 (February 2022)
- English    French   Spanish    Russian    Arabic    Chinese

Operators/technicians interested in taking part in the intercomparison as independent operators are invited to apply by  20 March 2022, using the form available here: Form for nomination of operators

Letter of Call for Participation (June 2021)
- English

Manufacturers interested to participate in the intercomparison are invited to provide the required information on their radiosonde systems, by  4 July 2021, using the online questionnaire available here: https://www.surveymonkey.com/r/UAII-2022

Postponement to 2021
The intercomparison was originally planned to take place in 2021. Because of the COVID pandemic, and associated travel restriction, it had to be postponed to 2022,

Letter of Call for Participation (June 2020)
- English

Manufacturers interested to participate in the intercomparison are invited to provide the required information on their radiosonde systems, by 12 July 2020, using the online questionnaire available here: https://www.surveymonkey.com/r/WMO_UAII_2021 

Letter on Expression of Interest to Participate (Nov. 2019)
- English    French   Spanish    Russian    Arabic

11th International and Regional Pyrheliometer Intercomparisons (IPC-XI, RPCs)
Davos, Switzerland, 27 September - 15 October 2010