ICCP-GSRA Workshop 2023, jointly with
2nd EarthCARE Modeling Workshop
for improving cloud and radiation of climate models

Dates: 27(Mon)-29(Wed), Mar. 2023
with ICCP-GSRA core meeting on 30 (Thu), Mar. 2023

Venue: Hotel Laforet Shuzenji


  • Masaki Satoh (AORI/The University of Tokyo)
  • Kenta Suzuki (AORI/The University of Tokyo)
  • Tomoki Miyakawa (AORI/The University of Tokyo)
  • Bjorn Stevens (MPI-M)
  • Hajime Okamoto (RIAM/CIRAP, Kyushu University)
  • Takuji Kubota (JAXA)

Jointly hosted by JAXA; Research Institute for Applied Mechanics (RIAM), Kyushu Univ.; AORI, The University of Tokyo


This workshop is intended to enhance activities of the cutting-edge atmospheric climate and weather models, including “K-scale” or global storm-resolving models and their collaboration with the EarthCARE satellite.

The EarthCARE satellite is scheduled to be launched in 2024, with the first-ever global observations of the vertical motion of cloud particles from space (by CPR Doppler measurement). Prior to the launch, we would like to invite modeling scientists to discuss possible directions and areas of collaboration between the EarthCARE satellite and modeling communities for advancing model representations of cloud and convection physics. We also aim to facilitate the ongoing discussions of NASA AOS, which is planned for launch around 2030.

This workshop is jointly hosted by International Core-to-Core Project on Global Storm Resolving Analysis (ICCP-GSRA), which enhances activities for promoting international collaboration for global storm-resolving meteorological data analysis and their social implementation.

Primary scopes of discussions

  • Collaboration with EarthCARE and modeling
  • How to use EarthCARE and other observational data to improve models
  • Future activities of GSRA, including new proposals of inter-comparison of Global Storm Resolving Models
  • Cloud and convective processes revealed by the EarthCARE and modeling collaboration
  • Innovative analysis of cloud and convective systems
  • New aspects of satellite simulator approaches

Schedule / Agenda

  • 27 March 2023 (Mon) 13:00-18:00, Ice break
  • 28 March 2023 (Tue) 08:30-18:00, Banquet
  • 29 March 2023 (Wed) 08:30-15:00


Each oral presentation must be within 15 min and Q&A (5 min)
Poster flash talks scheduled on
Poster viewing throughout the workshop, with the core time slots on 27 and 29 March.
Poster size is 90 cm (W) x 210 cm (H)


DAY1: 27 March 2023 (Mon) 13:00-18:00

Introduction talks
Chair: Masaki Satoh

Break: 14:45-15:15

Simulators, evaluations
Chair: Kenta Suzuki

Poster flash talks [01-10] and viewing 17:15-18:30
3 min for each poster

  1. Tatsuya Seiki (JAMSTEC) "Problems of simplified ice terminal velocities in the collisional growth term"
  2. Tsuyoshi Koshiro (MRI) "Estimated cloud-top entrainment index explains positive low-cloud-cover feedback"
  3. Yuhi Nakamura (AORI) "Development of a simulator for CPR vertical doppler velocity on COSP2"
  4. Ryusuke Masunaga (JAMSTEC) "Global coupled simulations with cloud-resolving atmosphere and eddy-resolving ocean coupled models"
  5. Toshiyuki Tanaka (JAXA) "Assessment of Cloud Product Derived from Spaceborne Visible-Infrared Imager (GCOM-C/SGLI) with Cloudsat and CALIPSO"
  6. Moeka Yamaji (JAXA) "Precipitation microphysical characteristics derived from spaceborne dual-frequency precipitation radar"
  7. Keiichi Ohara (JAXA) "Synergistic observation of ice cloud by EarthCARE/CPR and GPM/GMI"
  8. Yuichi Ohno (NICT) "EarthCARE CPR Doppler Validation with WINDAS"
  9. Akira Yamauchi (AORI) "Development and Validation of the Japanese EarthCARE 4-sensor standard algorithm for radiation fluxes"
  10. Yasutaka Ikuta (MRI) "Evaluation and improvement of cloud microphysics scheme using ground-based polarimetric radar and disdrometer observations"
  11. Shinichi Kodama (AORI) "Statistical Analysis of Remote Precipitation in Japan Caused by Typhoons"
  12. Koryu Yamamoto (AORI) "Maintenance Mechanism of Cutoff Lows as Vortex–Vortex Interactions: A Case Study in July 2021 over Europe"
  13. Takashi Nagao (AORI) "Characterizing vertical stratification of the cloud thermodynamic phase with a combined use of active and passive remote sensing"
  14. Kohei Yamasaki (AORI) "Large eddy simulation of mixed-phase clouds with aerosol injection"
  15. Yuki Imura (AORI) "Evaluation of Arctic snowfall in MIROC with satellite observation and its link to cloud radiative effect"
  16. Rino Maki (AORI) "Cloud tracking analysis of microphysical properties with Himawari-8"
  17. Kentaroh Suzuki (AORI) "Evaluating cloud thermodynamic phase and mixed-phase precipitation in MIROC with multi-sensor satellite observations"
  18. Mayumi Yoshioka (JAXA) "Satellite Doppler Wind Lidar (Aeolus) Observations and its Impact on Assimilation Experiments: a case study of tropical cyclogenesis formation"
  19. Masuo Nakano (JAMSTEC) "Towards seasonal TC forecasting using NICOCO"
  20. Yutaro Nirasawa (AORI) "The fluctuation of the monsoon trough between global ensemble experiments with NICAM and NICOCO"
  21. Kazuki Kondo (The University of Tokyo) "NICAM sensitivity to soil moisture in DYAMOND2 simulation"

Ice break: 18:30-20:30

DAY2: 28 March 2023 (Tue) 08:30-18:00

Session 3: 08:30-12:00
Chairs: Tomoki Miyakawa, Daniel Klocke

Lunch: 12:00-13:30

Session 4: 13:30-15:30
Chairs: Tomoki Miyakawa, Daniel Klocke

Poster flash talks [11-20] and viewing

Break: 15:30-16:00

Session 5: 16:00-17:40
Process studies
Chairs: Hiro Masunaga, Kenta Suzuki

Banquet: 18:30-20:30

DAY3: 29 March 2023 (Wed) 08:30-15:00

Session 6: 08:30-12:00
Process analysis/modeling (cont.)
Chairs: Hiro Masunaga, Kenta Suzuki

  • Toshihisa Matsui (NASA/Goddard) "Thermal-Tracking Analyses to Explain Graupel Generation by the GoAmazon LESs"
  • Roh Woosub (AORI, The University of Tokyo) "An evaluation of microphysics schemes using a 94 GHz Doppler radar"
  • Taka Iguchi (NASA/Goddard) "Modeling Study of Life Cycles of Isolated Deep Convection during the TRACER Field Campaign"

Chairs: Pier Luigi Vidale, Kenta Suzuki

Poster viewing

Lunch: 12:00-13:00

Session 7: 13:00-15:00

End of the Workshop

Excursion (tour to Shuzenji-Onsen): 15:00-18:30 (optional)

The following schedule is optionally attended. Those who are interested in the GSRM activity can join.

DAY4: 30 March 2023 (Thu) 09:00-14:00

ICCP-GSRA core meeting

  • 9:00-12:00: ICCP-GSRA core meeting
  • Overviews of the on-going projects
  • Discussions on intercomparison experiments of GSRMs
  • Future plans
  • 12:00-13:00: Lunch
  • 13:00-14:00: Closing