ICCP-GSRA Workshop 2023, jointly with

2nd EarthCARE Modeling Workshop

for improving cloud and radiation of climate models


Dates: 27(Mon)-29(Wed), March, 2023

with  ICCP-GSRA core meeting on 30 (Thu), March, 2023


Hotel Laforet Shuzenji



No. 9 Sympathique Hall, B1F, Japanese Style Banquet KAEN


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:



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)


Setting and testing for conection 9:00-13:00

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) CPR Validation with HG-SPIDER at NICT Koganei [tentative]
  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. Tomoki Miyakawa  (AORI) Global sub-5 km mesh model intercomparison (DYAMOND2)
  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 (AORI) NICAM sensitivity to soil moisture in DYAMOND2 simulation

Ice break: 18:30-20:30

Sympathique Hall, 2F, Foyer and SOKAI

28 March 2023 (Tue)

Session 3: 8:30-12:00


Chairs: Tomoki Miyakawa, Daniel Klocke

        Group photo

          Lunch: 12:00-13:30

Sympathique Hall, 1F Japanese Cuisine AMAGI

 Session 4: 13:30-15:30


Chairs: Tomoki Miyakawa, Daniel Klocke

Poster flash talks [11-21] and viewing

            Break: 15:30-16:00

            Session 5: 16:00-18:00

Process studies

Chairs: Hiro Masunaga, Kenta Suzuki

Poster viewing

Banquet: 18:30-20:30

Sympathique Hall, 2F Banquet room SOKAI

29 March 2023 (Wed)

Session 6: 8:30-12:00

Process analysis/modeling (cont.)

Chairs: Hiro Masunaga, Kenta Suzuki


Chairs: Pier Luigi Vidale, Kenta Suzuki

Poster viewing

Lunch: 12:00-13:00

Sympathique Hall, 1F Japanese Cuisine AMAGI

            Session 7: 13:00-14:30


End of the Workshop

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

15:00 Depart the hotel by bus

15:30 Arraival at Shuzenji-Onsen: Shuzenji Total Hall


18:00 Depart the Shuzenji-Onsen: Shuzenji Total Hall

18:15 The Shuzenji Station

18:30 Return to the hotel



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

30 March 2023 (Thu) 9:00-14:00

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