ICM-14, La Réunion, 2022
14th Implementation and Coordination Meeting, La Réunion (FR), 28 November to 2 December 2022
Information about ICM-14

Location
La Réunion (& Virtual)
Date
28th November - 2nd December 2022
Hosts
ICM-14 will be organized as a hybrid meeting 28 November - 2 December. The meeting is kindly hosted by the Université de La Réunion in Saint Denis, Reunion Island, but it is also possible to participate by video connection. The meeting venue is on the university campus.
Organizers
- Ruud Dirksen (GRUAN Lead Centre, DWD)
- Peter Thorne (WG Co-Chair, Maynooth University)
- David Smyth (Maynooth University)
- Caterina Tassone (GCOS)
- Tim Oakley (GCOS)
- Howard Diamond (NOAA GCOS office)
- June Wang (WG Co-Chair, SUNY)
- Marion Maturilli (AWI)
- Dale Hurst (NOAA ESRL)
- Jerome Brioude (LACy)
- Joel van Baelen (LACy)
- Stephanie Evan (LACy)
Documentation
Map
Agenda of ICM-14
Status as of 2022-12-15
- Package of all presentations of Monday of ICM-14 (zip; 28.4 MiB; as at 2022-12-15)
- Package of all presentations of Tuesday of ICM-14 (zip; 22.6 MiB; as at 2022-12-09)
- Package of all presentations of Wednesday of ICM-14 (zip; 19.8 MiB; as at 2022-12-09)
- Package of all presentations of Thursday of ICM-14 (zip; 25.7 MiB; as at 2022-12-13)
- Package of all presentations of Friday of ICM-14 (zip; 16.4 MiB; as at 2022-12-09)
Monday 28 November
Chair: Peter Thorne
Registration from 08:30 to 09:00 RET
Session 1 - Welcome
09:00 - 10:30 RET / 05:00 - 06:30 UTC
Times in RET | ||
09:00 - 09:10 | Welcome | June Wang |
09:10 - 09:20 | Meeting logistics | Stephanie Evan |
09:20 - 09:30 | Official opening | Host |
09:30 - 09:45 | La Reunion, a knowledge center for island resilience | Philippe Holstein |
09:45 - 10:00 | Opening Statement – GCOS/WMO | WMO (Remote) |
10:00 - 10:15 | GRUAN fundamentals | Ruud Dirksen |
10:15 - 10:30 | Certification of Barrow/North Slope Alaska (BAR) & Ross Island (ROS) | Peter Thorne & June Wang |
Morning break from 10:30 to 11:00 RET
Session 2 - Review of progress
11:00 - 12:30 RET / 07:00 - 08:30 UTC
Times in RET | ||
11:00 - 11:30 | Lead Centre report for 2019 - 2022 | Ruud Dirksen |
11:30 - 11:45 | Status of all GDPs under development | Ruud Dirksen |
11:45 - 12:15 | ICM 13 Actions status | Peter Thorne |
12:15 - 12:30 | RS41 GRUAN Data Product Version 1 ( RS41 GDP. 1) | Michael Sommer |
Lunch from 12:30 to 13:30 RET
Session 3 - GRUAN Priorities
13:30 - 15:30 RET / 09:30 - 11:30 UTC
Times in RET | ||
13:30 - 14:45 | R23 and its replacement (HP5)
| GRUAN Lead Centre leads |
14:45 - 15:05 | Updates for Meisei GDPs (RS 11G & iMS 100) | Takuji Sugidachi |
15:05 - 15:30 | GRUAN data products of Modem radiosondes
| Jean-Charles Dupont (remote) & Antoine Farah |
Afternoon break from 15:30 to 16:00 RET
Session 4 - Operational matters
16:00 - 16:30 RET / 12:00 - 12:30 UTC
Times in RET | ||
16:00 - 16:15 | Technical Note - Radiosonde parallel soundings database augmentation with site based ancillary data: guidance to sites | David Smyth |
16:15 - 16:30 | C5 - Standard Humidity Chamber (SHC) | Michael Sommer |
Keynote forum 1 - Vision and Plans
16:30 - 17:30 RET / 12:30 - 13:30 UTC
Tuesday 29 November
Session 5 - Site visit: The Maïdo Observatory
The site visit will be at the high-altitude Maïdo Observatory, 2-hour by bus from downtown Saint-Denis. On this day, we will celebrate the 10-year anniversary of the Observatory and the reclassification of La Réunion to Global GAW station (it was previously a regional station).
Times in RET | ||
07:00 | Bus departs from Saint-Denis, near Hôtel de ville (walking distance from all hotels) | |
09:30 - 10:00 | Coffee break | |
10:00 - 10:30 | Official addresses (5 min per person)
| |
10:30 - 11:00 | Official Ceremony, Global GAW certificate presentation
| |
11:00 - 12:30 | Visit of the observatory | |
12:30 - 14:00 | Lunch, 10-year anniversary of the observatory | |
14:00 | Bus departs the Maïdo Observatory for Hotel Boucan Canot. |
Session 5 - Site visit: Local presentations and conference dinner
Times in RET | ||
15:30 - 15:45 | Tonga Rapid Response Experiment (TR2Ex) | Karen Rosenlof |
15:45 - 16:00 | Rapid ozone loss following humidification of the stratosphere by the Hunga Tonga Eruption | Stephanie Evan |
16:00 - 16:15 | Injection of unprecedented amounts of water vapor into the stratosphere by the eruption of Hunga Tonga Hunga Ha’apai | Holger Vömel |
16:15 - 16:30 | Early Evolution of the Hunga-Tonga Aerosol Stratospheric Plume from Lidar Observations at La Réunion (21°S, 55°E) | Valentin Duflot |
16:30 - 16:45 | An overview of research activities at LACy | Joel Van Baelen |
16:45 - 17:00 | How to collaborate with La Reunion's Research and Innovation stakeholders? Overview of forthcoming Horizon Europe calls for projects | Evelyne Tarnus |
17:00 - 19:00 | Free time (hotel Boucan Canot is located near the Boucan Canot beach) | |
19:00 - 21:00 | Diner Cocktail | |
21:30 | Bus departs Hotel Boucan Canot for downtown Saint-Denis |
Wednesday 30 November
Chair: Ruud Dirksen
Session 6 - Science and Innovation (part 1)
09:00 - 10:45 RET / 05:00 - 06:45 UTC
Times in RET | ||
09:00 - 09:20 | NOAA Products Validation System (NPROVS): NWS Alaska Region RS41 Radiosonde Transition Impact Study (2013-2022) | Tony Reale |
09:20 - 09:40 | Sequential Radiosonde Launches and Their Use in Satellite Sounding Data Validation | Bomin Sun |
09:40 - 10:00 | Options for radiosonde launches with EUMETSAT Metop and Metop SG overpasses | Axel von Engeln |
10:00 - 10:20 | Effects of inhomogeneities within the Field of View in satellite Water Vapour measurements | Xavier Calbet |
10:20 - 10:40 | EUMETSAT Invitation To Tender (ITT) 22/224312: Study on the development of vicarious calibration tools for MWI and ICI using radiosoundings | Domenico Cimini |
Morning break from 10:40 to 11:15 RET
Session 6 - Science and Innovation (part 1) - continued
11:15 - 12:30 RET / 07:15 - 08:30 UTC
Times in RET | ||
11:15 - 11:35 | Interpolation Uncertainty for RS/41 (review) and GNSS-RO (preliminary results) | Alessandro Fasso |
11:35 - 11:55 | The GDP for the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) | Marion Maturilli |
11:55 - 12:15 | Characterization of RALMO temperature and humidity data and error. A glimpse towards operational assimilation | Gianni Martucci |
12:15 - 12:35 | Progress with response time measurements of radiosonde humidity sensors | Christoph von Rohden |
Lunch from 12:35 to 13:30 RET
Session 7 - Task Team Reports
13:30 - 15:30 RET / 09:30 - 11:30 UTC
Times in RET | ||
13:30 - 13:50 |
Radiosonde TT High altitude attainment study progress (C7) | Masatomo Fujiwara |
13:50 - 14:10 |
Sites TT GRUAN TT Sites | Marion Maturilli |
14:10 - 14:30 |
Scheduling TT Measurement Scheduling and Combination Task Team Summary & Uncertainty Reporting | Tom Gardiner |
14:30 - 14:50 |
Ground-based TT The GRUAN Task Team on Ground Based Remote Sensing Measurements (TT GB) | Domenico Cimini |
14:50 - 15:10 |
GNSS-PW TT GNSS PW Task Team Progress Report for ICM 14 | Kalev Rannat |
15:10 - 15:30 |
Satellite TT TT SAT Task Team Report | Lori Borg & Axel von Engeln |
Afternoon break from 15:30 to 16:00 RET
Keynote forum 2 - GRUAN evolution
16:00 - 17:30 RET / 12:00 - 13:30 UTC
GRUAN evolution (Sites, data products and collaboration)
- View by Task Team Sites – Marion Maturilli and Richard Querel (10 min)
- View by Lead Center – Ruud Dirksen (10 min)
- GRUAN-GSRN Connections – Tim Oakley (10 min)
- Open discussion (60 min)
Thursday 01 December
Chair: June Wang
Breakout sessions
09:00 - 10:45 RET / 05:00 - 06:45 UTC
Breakout sessions (in person)
- Exchange on technical issues at the sites (Chaired by Marion Maturilli & Richard Querel)
- Satellite co-location (Chaired by Lori Borg & Axel von Engeln)
- Quality flags, interpolation and uncertainty (Chaired by Tzvetan Simeonov & Tom Gardiner)
Morning break from 10:45 to 11:15 RET
Breakout sessions - continued
11:15 - 12:30 RET / 07:15 - 08:30 UTC
1 slide to report back to plenary
Lunch from 12:30 to 13:30 RET
Session 8 - Science and Innovation (part 2)
13:30 - 15:30 RET / 09:30 - 11:30 UTC
Times in RET | ||
13:30 - 13:50 | Concept of a campaign of atmospheric characterization at ESO sites in Northern Chile | Florian Kerber (remote) |
13:50 - 14:10 | Direct validation of radiosonde data against radio occultation bending angles | Axel von Engeln |
14:10 - 14:30 | Empirical estimation of uncertainty in radiosondes, radio occultations and model forecast with the Three Cornered Hat method | Jo Nielsen |
14:30 - 14:50 | Calibration of radiosonde humidity sensors using upper air simulator and applications to soundings | Sang-Wook Lee |
14:50 - 15:10 | Combining the RS41 with CFH’s Golden Points for Reference Quality Humidity Retrievals | Yann Poltera |
15:10 - 15:30 | New French GRUAN RS in South Pacific Ocean | Patrick Jann |
Afternoon break from 15:30 to 16:00 RET
Keynote forum 3 - WMO Radiosonde Intercomparison
16:00 - 17:30 RET / 12:00 - 13:30 UTC
WMO 2022 Upper-Air Instrument Intercomparison Campaign (UAII2022)
- Overview of the intercomparison – Ruud Dirksen (15 min)
- Life in a multi-GDP World: the UAII 2022 perspective – Frederic Vogt (15 min)
- View of the intercomparison from the manufactures – Hannu Jauhiainen
- Open discussion
Visit to the Meteo France site starts at 17:30 RET
Friday 02 December
Chair: Marion Maturilli
Session 9 - GRUAN Data Products
09:00 - 10:45 RET / 05:00 - 06:45 UTC
Times in RET | ||
09:00 - 09:20 | The GRUAN Lidar Product As of Fall 2022 | Thierry Leblanc (remote) |
09:20 - 09:40 | Progress towards a Microwave Radiometer GRUAN Data Product (MWR GDP) | Nico Cimini |
09:40 - 10:00 | Frostpoint hygrometer GDP progression (B3) | Ruud Dirksen |
10:00 - 10:20 | Ozonesondes GDP progression | Holger Vömel |
10:20 - 10:45 | Discussion | Tim Oakley |
Morning break from 10:45 to 11:15 RET
Session 10 - Other ICM-13 actions
11:15 - 12:30 RET / 07:15 - 08:30 UTC
Times in RET | ||
11:15 - 11:30 | Cloud observations | Masatomo Fujiwara |
11:30 - 11:45 | QC/QA flagging ad hoc group progress report (HP3) | Tzvetan Simeonov |
11:45 - 12:15 | GNSS PW GDP FORMATS AND METROLOGICAL CLOSURE WITH RADIOSONDES | Galina Dick |
12:15 - 12:30 | RS41 / RS92 GRUAN Data Products Comparison (D3) | Tzvetan Simeonov |
Lunch from 12:30 to 13:30 RET
Session 11 - GRUAN management and governance
13:30 - 14:30 RET / 09:30 - 10:30 UTC
Times in RET | ||
13:30 - 13:45 | Silent sites (C8) | Ruud Dirksen |
13:45 - 14:00 | Data policy C3) | Ruud Dirksen |
14:00 - 14:15 | Refresh of presentation material | Dave Smyth |
14:15 - 14:20 | Site photos (C1) evolution to site diary | Michael Sommer |
14:20 - 14:30 | GRUAN Radiosonde Fundamental Document | Christoph von Rohden |
Session 12 - Closing remarks
14:30 - 15:30 RET / 10:30 - 11:30 UTC
Times in RET | ||
14:30 - 15:00 | Actions | Peter Thorne |
15:00 - 15:05 | ICM 15 | Ruud Dirksen |
15:05 - 15:30 | Formal close | June Wang & Peter Thorne |
Documents of ICM-14
Status as of 2022-11-23
Package of all documents of GRUAN ICM-14 (zip; 7.5 MiB; as at 2022-11-23)
Session | Title of Document | Submitted by | Doc. No. | Date |
0 | Local logistics | Local host | 0.01 | 2022-10-26 |
Agenda | Organizers | 0.02 | 2022-11-22 | |
2 | Lead Centre progress report for November 2022 | GRUAN Lead Centre | 2.01 | 2022-11-18 |
ICM-13 proposed actions | Peter Thorne | 2.02 | 2022-03 | |
5 | GRUAN Site Report for Alice Springs | Andrew Winchester | 5.01 | 2022-09-29 |
GRUAN Site Report for Barrow (ARM - NSA) | Evan Keeler | 5.02 | 2022-06-25 | |
GRUAN Site Report for Beltsville | GRUAN Lead Centre | 5.03 | 2022-11-15 | |
GRUAN Site Report for Boulder | Dale Hurst | 5.04 | 2022-07-06 | |
GRUAN Site Report for Cabauw | Arnoud Apituley | 5.05 | 2022-11-02 | |
GRUAN Site Report for Darwin | Andrew Winchester | 5.06 | 2022-09-29 | |
GRUAN Site Report for Dolgoprudny | GRUAN Lead Centre | 5.07 | 2022-11-15 | |
GRUAN Site Report for Davis | Andrew Winchester | 5.08 | 2022-09-29 | |
GRUAN Site Report for Graciosa (ARM - ENA) | Evan Keeler | 5.09 | 2022-06-25 | |
GRUAN Site Report for Neumayer | GRUAN Lead Centre | 5.10 | 2022-11-15 | |
GRUAN Site Report for Hong Kong | Wai-hung LEUNG | 5.11 | 2022-06-01 | |
GRUAN Site Report for Lauder | Richard Querel | 5.12 | 2022-06-28 | |
GRUAN Site Report for Lindenberg | Ruud Dirksen | 5.13 | 2022-09-28 | |
GRUAN Site Report for Macquerie Island | Andrew Winchester | 5.14 | 2022-09-29 | |
GRUAN Site Report for Melbourne | Andrew Winchester | 5.15 | 2022-09-29 | |
GRUAN Site Report for Minamitorishima | Junji Hisamitsu | 5.16 | 2022-06-01 | |
GRUAN Site Report for Ny-Ålesund | Marion Maturilli | 5.17 | 2022-08-01 | |
GRUAN Site Report for Payerne | Giovanni Martucci | 5.18 | 2022-08-28 | |
GRUAN Site Report for Paramaribo | Ankie Piters | 5.19 | 2022-10-31 | |
GRUAN Site Report for Potenza | Fabio Madonna | 5.20 | 2022-06-22 | |
GRUAN Site Report for La Reunion | Stephanie Evan | 5.21 | 2022-10-26 | |
GRUAN Site Report for Ross Island | Richard Querel | 5.22 | 2022-06-28 | |
GRUAN Site Report for Lamont (ARM - SGP) | Evan Keeler | 5.23 | 2022-06-25 | |
GRUAN Site Report for Singapore | Wong Shwei Lin | 5.24 | 2022-10-10 | |
GRUAN Site Report for Sodankylä | Rigel Kivi | 5.25 | 2022-11-05 | |
GRUAN Site Report for Syowa | Yutaka Ogawa | 5.26 | 2022-06-01 | |
GRUAN Site Report for Tateno | Hisamitsu Junji | 5.27 | 2022-06-01 | |
GRUAN Site Report for Tenerife | Miguel Hernandez | 5.28 | 2022-09-28 | |
GRUAN Site Report for Trappes-Palaiseau | Jean-Charles Dupont | 5.29 | 2022-11-03 | |
GRUAN Site Report for Xilinhot | GRUAN Lead Centre | 5.30 | 2022-11-15 | |
7 | Task Team Progress Report for November 2022 – Radiosondes | Masatomo Fujiwara, Christoph von Rohden and the team members | 7.01 | 2022-10-20 |
Task Team Progress Report for November 2022 – GNSS-PW | Jonathan Jones and Kalev Rannat | 7.02 | 2022-11-13 | |
Task Team Progress Report for November 2022 – Scheduling | Tom Gardiner and Fabio Madonna | 7.03 | 2022-11-04 | |
Task Team Progress Report for November 2022 – Sites | Dale Hurst and Marion Maturilli | 7.04 | 2022-10-18 | |
Task Team Progress Report for November 2022 – Satellite | Lori Borg, Axel von Engeln, and task team members | 7.05 | 2022-11-09 | |
Task Team Progress Report for November 2022 – Ground-Based | Domenico Cimini and Thierry Leblanc | 7.06 | 2022-11-21 |