The 2nd US-Korea Joint Workshop for Storm- and Mesoscale Weather Analysis and Prediction

Workshop Purpose:

To discuss and share current techniques used in the US and Korea for the observation, analysis, and prediction of storm- and mesoscale weather phenomena and, most importantly, to initiate and facilitate specific collaborative projects.

It is the goal of this workshop to integrate, through scientific exchange and specific collaborative projects, the research efforts in Korea and the US concerning storm- and mesoscale meteorology in order to significantly advance the technology of operationbal weather analysis and prediction in both countries.

Background:

In Spring 1995, two scientists (Drs. A. Shapiro and S.K. Park) from the Center for Analysis and Prediction of Storms (CAPS), an NSF Science and Technology Center (STC), visited several meteorological research groups in Korea, where they identified common interests and research pursuits that corresponded well with the purpose and caliber of work conducted by CAPS and other meteorological groups in the US. In particular, CAPS mission is to demonstrate the practicability of storm-scale numerical weather prediction and has developed and continues to test a complete prototype regional forecast system in collaboration with scientists, both in the US and abroad. To involve and thus also benefit other US organizations interested in regional forecasting, it was evident that a joint US-Korea workshop would be the best means of exploring the possibilities for collaboration with counterpart Korean agencies.

Therefore, in February of 1996, CAPS hosted a preliminary workshop in Norman, Oklahoma, which included more than 30 participants from 8 Korean and 12 US organizations. Prof. Dong-Kyou Lee of Seoul National University served as the counterpart of Korean coordinator. The topics of the initial workshop concentrated on the technology needed to support operational storm- and mesoscale NWP such as data observation and analysis techniques and the logistics for creating a numerical forecast in real-time.

Although this workshop helped to initiate scientific cooperation between the US and Korea, no specific projects were discussed in detail. The purpose of the workshop, rather, was to identify the breadth and depth of the research conducted in both countries in the area of small-scale weather analysis and prediction in order to clarify (i.e., before NSF funds were requested) the extent to which collaboration would be beneficial or even feasible. This would serve to lay foundation for a second workshop during which specific collaborative projects would be discussed and facinated.

Workshop Topics:

• Real-time/operational mesoscale numerical weather prediction
• Observation and analysis of mesoscale weather systems
• Orographic effects in the production of heavy rainfall
• Microphysics of heavy rainfall events
• Dynamics of mesoscale convective systems

Agenda:

The 2nd US-Korea joint workshop for storm- and mesoscale weather analysis and prediction will be held in Korea at Novotel Ambassador Toksan. It was mutually agreed that the workshop be held in Korea because the preliminary workshop, hosted by CAPS, was held in US.

It is proposed that this event be of 4 days duration, October 7-10, 1997. One day is reserved for a site visit to local scientific research and operational facilities and the remaining three days for workshop sessions consisting of:

1) research representations, which allow for each participant to present his or her contribution toward a given workshop topic and collectively provide an overview of the depth of research and common interests that exists, from which cooperation can be initiated;

2) working groups, which are designed to promote interactive and productive round-table discussions and result in the formulation of a whitepaper that defines the pertinent issues and concerns of each topic area and outlines specific collaborations most effective for their study and resolution;

3) plenary session, which serves to summarize and solidify the progress made during the workshop toward specific scientific collaborations and pave the way for continued dialogue between appropriate institutions.

Workshop Coordinators:

• Korea:
  Prof. Dong-Kyou Lee (Seoul National Univ.)
  Mr. Chun-Woo Lee (KMA)
  Dr. Kyung-Sup Shin (KMA)
  Prof. Hye-Yeong Chun (Yonsei Univ.)
  Dr. Jai-Ho Oh (METRI/KMA)
  Prof. Soo-Jin Hwang (Pusan National Univ.)
  Prof. Kyung-Eak Kim (Kyungpook National Univ.)
  Dr. Kyung-Yoon Park (SERI)
  Prof. Hyo Choi (Kangnung National Univ.)
  

• US (Organizing and Selection Committee):
  Prof. Kelvin K. Droegemeier (CAPS and School of Meteorology, Univ. of Oklahoma)
  Dr. John Snow (Dean, College of Geosciences, Univ. of Oklahoma)
  Dr. Peter Lamb (CIMMS, Univ. of Oklahoma)
  Prof. Alan Shapiro (CAPS and School of Meteorology, Univ. of Oklahoma)
  Dr. Seon Ki Park (CAPS, Univ. of Oklahoma)
  Mr. David Jahn (CAPS, Univ. of Oklahoma)
  

Workshop Participants :

• Korea:
  Jong-Jin Baik (K-JIST)
  Hi-Ryong Byun (Pukyung National Univ.)
  Hyo Choi (Kangnung National Univ.)
  Hye-Yeong Chun (Yonsei Univ.)
  Sun-Kab Chung (KMA)
  Song-You Hong (NCEP)
  Soo-Jin Hwang (Pusan National Univ.)
  Jong-Ghap Jhun (Seoul National Univ.)
  Jinwon Kim (Lawrence Livermore Lab.)
  Kyung-Eak Kim (Kyungpook National Univ.)
  Young-Chul Kim (ROK Air Force)
  Hyuk-Joe Kwon (Kongju National Univ.)
  Chun-Woo Lee (KMA)
  Dong-Kyou Lee (Seoul National Univ.)
  Tae-Young Lee (Yonsei Univ.)
  Wan-Ho Lee (SERI)
  Gyu-Ho Lim (Seoul National Univ.)
  Yi-Geun Noh (Yonsei Univ.)
  Jai-Ho Oh (METRI/KMA)
  Kyung-Yoon Park (SERI)
  Myung-Seok Suh (SERI)
  Kyung-Sup Shin (KMA)
  

• US:
  Mark Askelson (Univ. of Oklahoma)
  Craig Bishop (Penn State Univ.)
  Roelof Bruintjes (NCAR)
  Yi-Leng Chen (Univ. of Hawaii)
  Kelvin K. Droegemeier (CAPS)
  David Jahn (CAPS)
  Paul Janish (Storm Prediction Center)
  John Kain (CIMMS)
  Yuh-Lang Lin (North Carolina State Univ.)
  Seon Ki Park (CAPS)
  Anil Rao (Florida State Univ.)
  Bill Skamarock (NCAR)
  Hans Verlinde (Penn State Univ.)
  Pao K. Wang (Univ. of Wisconsin)
  

Tuesday, October 7

 8:30 -  9:00	Registration
 9:00 -  9:40	Welcoming Remarks			Dong-Kyou Lee (SNU)
							Kelvin Droegemeier (CAPS)

 9:40 - 10:00	Break

Session 1: Operational Testing

	Co-Chairs: Paul Janish (SPC), Kyung-Sup Shin (KMA)

10:00 - 10:25	CAPS Operational Testing: Current	Kelvin Droegemeier (CAPS) 
		Results and Future Plan
10:25 - 10:50	Increased Resolution in Operational 	John Kain (CIMMS)
		Numerical Models
10:50 - 11:15	Real-time Mesoscale Prediction at SNU:	Dong-Kyou Lee and
		Tests					Tae-Kown Wee (SNU)
11:15 - 11:40	Overview of TAKE Project		Kyung-Sup Shin (KMA)
11:40 - 12:05	Assesing the Value of Storm-Scale NWP	Paul Janish (SPC)
		Models for Operational Convective 
		Forecasting

12:05 - 13:55	Lunch

13:55 - 14:20	Aviation Weather Element Forecast 	Yeong-Chul Kim, Jang-Ho Lim
		Using NWP Model				and Yong-Keun Lee (ROKAF)

14:20 - 14:50	Plenary Session

Session 2: Sensitivity and Targeted Observations

	Co-Chairs: Sharanya Majumdar (Penn. State), Jai-Ho Oh (METRI)

14:50 - 15:15	Analyses of Rainfall Data Observed 	Jong-Ghap Jhun (SNU)
		by Chuckwookee
15:15 - 15:40	Ensemble Transformation and Adaptive	Sharanya Majumdar (Penn. State)
		Observations
15:40 - 16:05	Sensitivity of Surface Parameters on 	Dong-Il Lee (KMA)
		the Simulation of Thunderstorms

16:05 - 16:20	Break

16:20 - 16:45	Numerical Simulation of Heavy 		Jai-Ho Oh and
		Rainfall: Sensitivity Test for		Young-Ah Kim (METRI)
		Initial Field with ARPS Model
16:45 - 17:10	Adjoint Sensitivity Study of Heavy 	Dong-Eon Chang and
		Rainfall Case				Dong-Kyou Lee (SNU)
17:10 - 17:40	Plenary Session

18:00 -		Reception

Wednesday, October 8
Session 3: Assimilation and Modeling

	Co-Chairs: Johannes Verlinde (Penn. State), Tae-Young Lee (Yonsei U.)

 8:30 -  8:55	A Numerical Modeling Study of a Heavy	Tae-Young Lee, Young-Yoon Park
		Rainfall Associated with the Changma	and Young-Hwa Kim (Yonsei U.)
		Front
 8:55 -  9:20	4DVAR with a Moist Adjoint Applied to	Seon Ki Park and
		Deep Convective Storms			Kelvin Droegemeier (CAPS)
 9:20 -  9:45	4DVAR Assimilation of Multiparameter	Johannes Verlinde (Penn. State)
		Radar Observations in an Explicit Model
 9:45 - 10:10	Comparison of Convective Parameteriza-	Song You Hong (NCEP)
		tion Schemes for a Severe Weather Event

10:10 - 10:30	Break

10:30 - 10:55	High Resolution Modeling of the Cape	Anil Rao (FSU)
		Canaveral, FL Sea Breeze

10:55 - 11:20	Plenary Session

Session 4: Orographic Effects

	Co-Chairs: Yuh-Lang Lin (NCSU), Jinwon Kim (LLNL)

11:20 - 11:45	Orographic Influence on Propogating 	Yuh-Lang Lin (NCSU)
		Vortex
11:45 - 12:10	A Numerical Study on the Wave Breaking	Sung-Dae Kang, Soo-Jin Hwang (PNU)
		Regimes over Complex Terrain		Fujio Kimura (U. Tsukuba)

12:10 - 13:40	Lunch

13:40 - 13:55	A Numerical Study on Nonlinear Flow 	Sung-Dae Kang, Soo-Jin Hwang (PNU)
		Passing an Isolated Mountain: Mecha-	Fujio Kimura (U. Tsukuba)
		nisms of Cloud-Streets Formation
13:55 - 14:20	Effects of Cloud Parameterization and	Jinwon Kim and
		Terrain Representation on Simulating	Norman Miller (LLNL)
		Precipitation over Complex Terrain
14:20 - 14:45	Comparison of Atmospheric Circulation	Hyo Choi (Kanung Nat. U.)
		Patterns over Coastal Complex Terrain
		by Using Nested Hydrostatic and Non-
		hydrostatic Numerical Models

14:45 - 15:15	Plenary Session

15:15 - 15:30	Break

Session 5: Microphysics of Heavy Rainfall

	Co-Chairs: Pao K. Wang (U. of WI), Gyu-Ho Lim (SNU)

15:30 - 15:55	Analysis of a Heavy Rainfall Event	Yi-Leng Chen (U. of HI)
15:55 - 16:25	The Kinematic and Microphysical 	Mark Askelson (OU)
		Evolution of a Supercell from First
		Echo Using Dual-Polarization Radar
16:25 - 16:50	Cloud Microphysical Processes in	Pao K. Wang (U. of WI)
		Midlatitude and Subtropical Thunder-
		storms
16:50 - 17:05	Relationship between the Precipitation	Gyu-Ho Lim (SNU), Ae-Sook Seo (KMA),
		Amounts over the Korean Peninsula and	and Yong-Sup Lee (METRI)
		its Adjacent Seas

17:05 - 17:35	Plenary Session

Thursday, October 9
 9:00 -		Facilities Tour to Taejon 
		(KMA, SERI, KOWACO, KOSEF)

Friday, October 10
Session 6: Dynamics of Mesoscale Convective Systems

	Co-Chairs: Bill Skamarock (NCAR), Kyung-Eak Kim (Kyungpook Nat. U.)

 8:30 -  8:55	Dynamics of Urban Heat Island 		Jong-Jin Baik (K-JIST)
		Convection
 8:55 -  9:20	Experiments in Modeling Clouds and	Roelof Bruintjes (NCAR)
		Precipitation in Frontal Systems
		over Korea
 9:20 -  9:45	Dimensionality in Mesoscale Convective	Bill Skamarock (NCAR)
		System Dynamics
 9:45 - 10:10	Kinematic Properties of Wind Fields 	Kyung-Eak Kim, Gyu-Won Lee (Kyungpook Nat. U.),
		and Air Turbulence in Tropical		Bernard Campistron (CRA)
		Stratiform Clouds			and Dong-In Lee (Pukyung Nat. U.)

10:10 - 10:30	Break

10:30 - 10:55	Gravity Wave Drag Induced by 		Hye-Yeoung Chun (Yonsei U.)
		Convection and Its Approximation
		for Large-scale Models

10:55 - 11:25	Plenary Session

11:25 - 12:00	Working Groups Discussion

12:00 - 13:20	Lunch

13:20 - 14:50	Working Groups Discussion (Continued)

14:50 - 15:10	Break

15:10 - 17:10	Workshop Plenary Session

	Co-Chairs: Dong-Kyou Lee (SNU), Kelvin Droegemeier (CAPS)

17:10		Adjourn