Wednesday, 22nd April 2026
| Time | Presentation | Presenter |
Chair: Johannes Nielsen, Rapporteur: Tim Trent |
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| 13:00 – 13:15 | Welcome at the Danish Meteorological Institute (DMI) | Ole Krarup Leth |
| 13:15 – 13:45 | Tour de table including expectations | |
| 13:45 – 14:05 | Overview on the GEWEX Water Vapor Assessment (G-VAP) | Marc Schröder, Tim Trent, Shu-peng Ho |
| 14:05 – 14:15 | Aims of meeting and key questions for the workshop | Tim Trent, Marc Schröder, Shu-peng Ho |
| 14:15 – 14:30 | Tropospheric specific humidity CDR based on GNSS Radio Occultations | Johannes K. Nielsen |
| 14:30 – 14:45 | Investigating possible contributions of IASI/IASI-NG for bridging the upcoming gap of stratospheric water vapour limb-sounding observations | Nga Ying Lo |
| 14:45 – 15:00 | Discussion | |
| 15:00 – 15:30 | Break | |
Chair: Tim Trent, Rapporteur: Johannes K. Nielsen |
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| 15:30 – 15:45 | Using in situ observations to monitor near-surface humidity | Kate Willet |
| 15:45 – 16:00 | Long‐Term TCWV Climate Data Record using Ground‐Based GNSS | Olivier Bock |
| 16:00 – 16:15 | Water Vapour variability measured from GNSS instruments as an indication of severe weather: a potential path to explore GNSS versus GRUAN sonde biases | Xavier Calbet |
| 16:15 – 16:30 | Comparison of tropospheric humidity products provided by MWIR and Radio Occultation on Metop-A | Ludwig Barbosa |
| 16:30 – 16:45 | Evaluation and Process Diagnosis of NOAA GEFSv12 Reforecasts using GNSS RO Data | Shu-Peng Ho (Remote) |
| 16:45 – 17:00 | Extending and Reprocessing the NASA NVAP-M Water Vapour Dataset | John Forsythe (Remote) |
| 17:00 – 17:15 | A Global, Multi-Decadal (1983-2017) Convection Tracking Database Using ISCCP-H Data and tobac Package: Convective Lifecycle Characteristics and Connection to G-VAP | Johnny Luo |
| 17:15 – 17:30 | Discussion | |
| 17:30 – 18:30 | Icebreaker | |
| 19:30 – | No host Dinner |
Thursday, 23nd April 2026
| Time | Presentation | Presenter |
Chair: Michael Eisinger, Rapporteur: Marc Schröder |
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| 09:00 – 09:20 | Intergovernmental Panel on Climate Change (IPCC) – Key findings around atmospheric water vapour and priorities for future analysis (TBD) | Peter Thorne |
| 09:20 – 09:35 | EUMETSAT’s scientific framework on water vapor (TBD) | Rene Preusker |
| 09:35 – 09:50 | The Advanced Infra-Red WAter Vapour Estimator-version 3 (AIRWAVE-v3) TCWV dataset: from ATSR-1 to SLSTR | Elisa Castelli |
| 09:50 – 10:05 | ESA Water Vapour cci: A combined total column water vapour data record from microwave and near-infrared imager observations | Marc Schröder |
| 10:05 – 10:20 | Total column water vapor for Sentinel-4, 5 and 5p toward a climate data record | Luca Lelli |
| 10:20 – 10:30 | Update on PlanetiQ RO results | Emil Kursinski |
| 10:30 – 10:45 | Discussion | |
| 10:45 – 11:15 | Break | |
Chair: Marc Schröder, Rapporteur: Tim Trent |
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| 11:15 – 11:30 | Status of WCRP report | Tim Trent, Marc Schröder, Shu-peng Ho |
| 11:30 – 11:50 | Discussion on missing and potential new contributions | |
| 11:50 – 12:00 | An introduction to Working Group on Observations for Researching Climate (WGORC) and feedback from GEWEX Data and Analysis Panel (GDAP) | Marc Schröder |
| 12:00 – 12:15 | Discussion | |
| 12:15 – 13:30 | Lunch | |
Chair: Tim Trent, Rapporteur: Marc Schröder |
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| 13:30 – 14:30 | Tour de tables with answers to seed questions | |
| 14:30 – 15:30 | Discussion | |
| 15:30 – 15:50 | Wrap-up, next meeting | Marc Schröder, Tim Trent, Shu-peng Ho |
| 15:50 – 16:00 | AoB |
