June 2025 - Announcements - lists.irowg.org

3rd Polarimetric Radio Occultation Workshop - Save the dates!
by Estel Cardellach 26 Jun '25

26 Jun '25

*The Third Polarimetric Radio Occultations Workshop will take place on10-12 November 2025 at EUMETSAT HQ in Darmstadt, Germany.* The meeting will be in a hybrid format. IROWG and ITWG members are encouraged to participate. In person is preferred. A proper announcement with more details will be sent soon, for now, please _save the dates_! Estel, Joe, Christian

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Call for Papers: ROMEX Special Issue in Atmospheric Measurement Techniques (AMT)
by Hui Shao 23 Jun '25

23 Jun '25

Dear IROWG and ROMEX participants, I’m pleased to announce that the *Atmospheric Measurement Techniques (AMT)* special issue titled *“The Radio Occultation Modeling EXperiment (ROMEX): observational quality, processing, and numerical weather prediction (NWP) applications”* is now open for submissions. ROMEX <https://irowg.org/ro-modeling-experiment-romex/>, an IROWG-led initiative, aims to assess the impact of ~35,000 daily radio occultation (RO) profiles—collected from 13 missions during September–November 2022—on numerical weather prediction. This international campaign involves contributions from data providers, processing centers, and forecasting institutions across the global research and operational communities. The special issue welcomes papers using ROMEX data on topics including, but not limited to: - RO data quality and processing - Evaluation and validation of RO datasets - Impact studies in NWP and other atmospheric applications *Submission is open from 1 May 2025 to 31 December 2026* (extensions possible). Submit here: https://editor.copernicus.org/AMT/manuscript_registration Please ensure the correct special issue title is selected during submission. Editorial assignment follows a *first-come, first-served* policy. A full description of the special issue is available at: https://www.atmospheric-measurement-techniques.net/articles_and_preprints/s… *(under 2025)* We look forward to your contributions! Hui Shao On behalf of ROMEX steering committee

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Request feedback on ROM SAF NRT observations monitoring
by Neill Bowler 21 Jun '25

21 Jun '25

OFFICIAL Hi all, One of the activities that the ROM SAF does is the monitoring of observations, which can be viewed on the following websites: https://rom-saf.eumetsat.int/monitoring/index.php https://www.ecmwf.int/en/forecasts/quality-our-forecasts/monitoring/gpsro-m… In planning for the next phase of the ROM SAF (known as CDOP-5) we'd like to understand how useful you find the observations monitoring systems and provision of observation uncertainties. This will help us to know where to put the most effort in future. So, would you be willing to answer this short questionnaire: https://forms.office.com/Pages/ResponsePage.aspx?id=YYHxF9cgRkeH_VD-PjtmGeS… The form closes at the end of June, so please submit responses before then. Many thanks, Neill (on behalf of Neill, Mary, Sean and Katrin) Neill Bowler GNSS radio occultation Met Office FitzRoy Road Exeter EX1 3PB United Kingdom Tel: +44 (0)3301 351859 neill.bowler(a)metoffice.gov.uk<mailto:neill.bowler@metoffice.gov.uk> Web: www.metoffice.gov.uk<http://www.metoffice.gov.uk/> Pronouns: he, him, his. Why specify gender pronouns?<https://www.cultureamp.com/blog/sharing-gender-pronouns-at-work> [A button with "Hear my name" text for name playback in email signature]<https://www.name-coach.com/neill-bowler> OFFICIAL

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a STAR JGR paper
by Shu-peng Ho - NOAA Federal 11 Jun '25

11 Jun '25

Dear all, We are pleased to let you know that we have just published a JGR paper: Construction of Temperature Climate Data Records in the Upper Troposphere and Lower Stratosphere Using Multiple RO Missions From September 2006 to July 2023 at NESDIS/STAR Jun Zhou <https://agupubs.onlinelibrary.wiley.com/authored-by/Zhou/Jun>, Shu-Peng Ho <https://agupubs.onlinelibrary.wiley.com/authored-by/Ho/Shu%E2%80%90Peng> , Xinjia Zhou <https://agupubs.onlinelibrary.wiley.com/authored-by/Zhou/Xinjia>, Xi Shao <https://agupubs.onlinelibrary.wiley.com/authored-by/Shao/Xi>, Guojun Gu <https://agupubs.onlinelibrary.wiley.com/authored-by/Gu/Guojun>, Yong Chen <https://agupubs.onlinelibrary.wiley.com/authored-by/Chen/Yong>, Tung-Chang Liu <https://agupubs.onlinelibrary.wiley.com/authored-by/Liu/Tung%E2%80%90Chang> , Xin Jing <https://agupubs.onlinelibrary.wiley.com/authored-by/Jing/Xin> First published: 09 June 2025 https://doi.org/10.1029/2024JD041295 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JD041295 One of the key findings is summarized in Figure 7, which demonstrates the RO-RO biases for COSMIC-1 - Metop GRAS, Spire - Metop GRAS, and COSMIC2 - Metop GRAS. The temperature MMC CDR in the UT/LS is constructed using COSMIC-1, Metop-A, -B, -C GRAS, and Spire. The MMC data can be downloaded from https://gpsmet.umd.edu/gnssro/download_mmta.php Best regards, Ben *==============================================* *Shu-peng Ben Ho, Ph. D.* *GNSS Radio Occultation** Program Lead Scientist* *NESDIS RO Science and Quality Assessment Grant Manager* *NOAA Center for Satellite Applications and Research (STAR)* *NCWCP, E/RA-21 Office# 2824* *5830 University Research Court, * *College Park, MD 20740-3818* *Tel : (301) 683-3596* *Email: shu-peng.ho(a)noaa.gov <shu-peng.ho(a)noaa.gov>* *STAR GNSS RO Center: **https://gpsmet.umd.edu/gnssro/index.php <https://gpsmet.umd.edu/gnssro/index.php>* *STAR GNSS RO Data Service: **https://gpsmet.umd.edu/gnssro/download.php <https://gpsmet.umd.edu/gnssro/download.php>* *Publication: researchgate.net/profile/Shu-Peng-Ho/publications <http://researchgate.net/profile/Shu-Peng-Ho/publications>* *==============================================*

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