The 12th International RSM Workshop:
Reflections and Prospects

In memory of John Roads and Masao Kanamitsu

Scripps Institution of Oceanography
La Jolla, California
November 5-9, 2012

First Announcement

Important Dates
Abstract submission due by September 15, 2012rev.gif
Abstract acceptance and an invitation letter will sent by September 20, 2012rev.gif
Registration due by October 10, 2012

Local Hosts
Daniel Cayan (Scripps Institution of Oceanography, La Jolla, CA)
Alexander (Sasha) Gershunov (Scripps Institution of Oceanography, La Jolla, CA)
Diane Boomer (Scripps Institution of Oceanography, La Jolla, CA)

Program Committee Members
Hann-Ming Henry Juang (National Centers for Environmental Prediction, USA), Chair
Shyh-Chin Chen (US Forest Service, USA), Chair, Roads commemoration
Song-You Hong (Yonsei University, Korea), Chair, Kanamitsu commemoration
Liqiang Sun (Cooperative Institute for Climate and Satellites - North Carolina, USA)
Kei Yoshimura (University of Tokyo, Japan)
Hideki Kanamaru (Food and Agriculture Organization of the United Nations)
Tomonori Sato (Hokkaido University, Japan)
Pay-Liam Lin (National Central University, Taiwan)
Ming-Chin Wu (National Taiwan University, Taiwan)
Chih-Hui Shiao (Central Weather Bureau, Taiwan)
Chi-Chang Liau (National Defense University, Taiwan)
Haiqin Li (Florida State University, USA)
Hyodae Seo (Woods Hole Oceanographic Institution, USA)
Art Miller (Scripps Institution of Oceanography, USA)

The Regional Spectral Model (RSM) originally developed at the National Centers for Environmental Prediction (NCEP) has been used extensively in regional downscaling of coarse resolution forecasts, analyses and simulations, which is one of the hottest topics in atmospheric modeling. Since the NCEP global atmospheric model in GFS was implemented operationally in horizontal resolution of about 25km last year, it is time for regional modeling to move from regional scale (~20 to ~40km) to mesoscale (~5 to ~20) by using a nonhydrostatic version of RSM. Thus, one of the major purposes of this year’s workshop is to introduce a nonhydrostatic version of RSM (called MSM). The remaining purpose is, as in past years, to provide opportunities for the RSM community to exchange their regional downscaling modeling findings using different versions of RSM. Those versions are (1) the Spectral GSM and RSM merged system (G-RSM) at Scripps, (2) NCEP RSM and MSM, (3) RSM at IRI, (4) GSM, RSM and MSM at Yonsei University, (5) CWB RSM at CWB, (6) RSM/MSM at NDU, and others. Furthermore, the RSM workshops are designed to gather together international regional model developers and users, to learn the latest modeling features being developed. Through these discussions we wish to formulate future plans for RSM development. Thus, this workshop does not exclude participation by modelers other than GSM, RSM, and MSM users. In fact, we strongly encourage people engaged with other models to attend, compare results, and discuss general regional model-related problems. There is increasingly high demand for RCM products from impact modelers and practitioners in seasonal forecasts and climate change issues. Therefore, an invitation to participate in the workshop is extended to end-users of the simulation results from RCMs on various time scales for application (climate risk management, wildfire, agriculture, water resources management, energy, etc). Through these discussions we wish to formulate future plans for RSM development.

In memory of John and Kana
For many years, Drs. John Roads and Masao Kanamitsu were two of the primary supporters of the International RSM Workshop. Sadly, John passed away on June 21, 2008, and Kana passed away during our last RSM workshop on August 17, 2011. John and Kana worked together very closely at Scripps for years before their passing. During this year’s workshop, we will dedicate one day, November 6, to honor their lives and legacies. Opportunities to commemorate John and Kana will be open to the community. Anyone interested in commemorating John Roads should contact Shyh Chen (, and anyone wishing to commemorate Masao Kanamitsu should contact Songyou Hong ( you can contact workshop chair, Hann-Ming Henry Juang ( We will arrange a time for your comments and reminiscences. We may have a dinner banquet on the same day.

Workshop Presentation (abstract)
Email your 1-page abstract (200-400 words) to if you intend to make a presentation. This abstract should describe your relevant work on regional and global spectral models. The abstract should also contain your email address. If there are multiple authors, please specify the presenter. Include this information in the body of the email. We will post your abstract on the RSM Workshop wikispace.

Workshop Registration
The RSM workshop will be held at the Scripps Institution of Oceanography at the University of California, San Diego, in La Jolla, California. The deadline to register for the workshop is October 10, 2012. Registration is $150 per person, to be paid on site (the registration fee will be waived for students). To register for the commemoration day is free.

To complete your registration, please visit the following:

Travel Support
Limited financial support will be available for students, and participants from developing countries, but details are unconfirmed at the present time. We will post the opportunity as soon as it becomes available. If you are eligible and need support, please note this in your registration form.

Local Arrangements
Hotel reservation information, meeting arrangements, travel directions, etc. will be posted at at a later date.
Please email if you have any questions.