GCOS-253 , GRUAN Implementation Plan 2024-2030. GCOS-235, June 2023: https://library.wmo.int/doc_num.php?explnum_id=11703 GCOS-250 , Report of the 14th GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-14), Université de La Réunion, Saint Denis, Réunion Island, 28 November – 2 December 2022: https://library.wmo.int/doc_num.php?explnum_id=11518 GCOS-242 , Report of the Thirteenth GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-13) Virtual Session, 15-19 November 2021: https://library.wmo.int/doc_num.php?explnum_id=11032 GCOS-237 , Report of the Twelfth GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-12), Virtual Session, 16-20 November 2020: https://library.wmo.int/doc_num.php?explnum_id=10537 GCOS-230 , Report of the Eleventh GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-11), Singapore, Singapore, 20-24 May 2019: https://library.wmo.int/doc_num.php?explnum_id=9935 GCOS-220 , Report of the Tenth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-10), Potsdam, Germany, 23 - 27 April 2018: https://library.wmo.int/doc_num.php?explnum_id=4663 GCOS-211 , Report of the Ninth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-9),Helsinki, Finland, 12 June - 16 June 2017: https://library.wmo.int/opac/doc_num.php?explnum_id=4245 GCOS-205 , GRUAN Implementation Plan 2017-2021. GCOS-205, February 2017: https://library.wmo.int/opac/doc_num.php?explnum_id=3389 GCOS-198 , Report of the Seventh GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-7), Matera, Italy, 23 February - 27 February 2015: http://library.wmo.int/pmb_ged/gcos_198_en.pdf GCOS-197 , Minutes Of The Working Meeting For GCOS Reference Upper Air Network (GRUAN), Geneva, Switzerland 18 November 2015: https://library.wmo.int/pmb_ged/gcos_197_en.pdf GCOS-180 , Report of the sixth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-6), Greenbelt, MD, USA, 10 March - 14 March 2014: http://library.wmo.int/pmb_ged/gcos_180_en.pdf GCOS-171 , The GCOS Reference Upper-Air Network (GRUAN) GUIDE. GCOS-171, Version 1.1.0.3, March 2013, WIGOS Technical Report No. 2013-03: http://library.wmo.int/pmb_ged/gcos_171.pdf GCOS-170 , The GCOS Reference Upper-Air Network (GRUAN) MANUAL. GCOS-170, Version 1.1.0.3, March 2013, WIGOS Technical Report No. 2013-02: http://library.wmo.int/pmb_ged/gcos_170.pdf GCOS-167 , Report of the Fifth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-5), De Bilt, Netherlands, 25 February - 1 March 2013: https://library.wmo.int/opac/index.php?lvl=notice_display&id=14893#.WiUpp3mDP1I GCOS-165 , GRUAN Implementation Plan 2013-2017. GCOS-165, June 2013: https://library.wmo.int/opac/doc_num.php?explnum_id=4016 GCOS-161 , Report of the Fourth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-4), Tateno, Japan, 5-9 March 2012: https://library.wmo.int/opac/doc_num.php?explnum_id=3872 GCOS-149 , Report of the Third GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-3), Queenstown, New Zealand, 28 February-4 March 2011: https://library.wmo.int/opac/doc_num.php?explnum_id=3863 GCOS-140 , Report of the Second GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-2), Payerne, Switzerland, 2-4 March 2010: http://library.wmo.int/pmb_ged/wmo-td_1526-gcos.pdf GCOS-138 , Implementation plan for the global observing system for climate In support of the UNFCCC (2010 update), August 2010, https://library.wmo.int/opac/doc_num.php?explnum_id=3851 GCOS-134 , GRUAN Implementation Plan 2009-2013, July 2009: https://library.wmo.int/opac/doc_num.php?explnum_id=3847 GCOS-131 , Report of the First GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-1), Norman, Oklahoma, USA, 2-4 March 2009: https://library.wmo.int/opac/doc_num.php?explnum_id=3844 GCOS-121 , Report of the GCOS Reference Upper-Air Network Implementation Meeting, Lindenberg, Germany, 26-28 February 2008: https://library.wmo.int/opac/doc_num.php?explnum_id=3831 GCOS-112 , GCOS Reference Upper-Air Network (GRUAN): Justification, requirements, siting and instrumentation options - April 2007: https://library.wmo.int/opac/doc_num.php?explnum_id=3821 IOM-143: Instruments and Observing Methods Report No. 143; Ruud Dirksen, Alexander Haefele, Frédéric P.A. Vogt, Michael Sommer, Christoph von Rohden, Giovanni Martucci, Gonzague Romanens, Christian Felix, Luca Modolo, Holger Vömel, Tzvetan Simeonov, Peter Oelsner, David Edwards, Tim Oakley, Tom Gardiner, Mohd. Imran Ansari; Report of WMO’s 2022 Upper-Air Instrument Intercomparison Campaign, Lindenberg/ Germany, February 2022 - January 2023WMO/ TD - No. 1580: Instruments and Observing Methods Report No. 107; J. Nash, T. Oakley, H. Vömel, LI Wei; WMO Intercomparison of High Quality Radiosonde Systems, Yangjiang/ China, 12 July - 03 August 2010back-to-top