Planning Workshop for the THORPEX Pacific Asian Regional Campaign (T-PARC), Tropical Cycle Structure (TCS-08) and Other Collaborative Experiments


Princeville Resort, Kauai

4-6 December 2007



4 December 2007:


7:00 am – 8:30 am                    Continental Breakfast


7:30 am – 8:30 am                    Registration                                                                          

8:30 am – 8:45 am                    Welcome, opening remarks, and meeting logistics:                                                                                                 David Parsons and Pam Johnson



Overview of the Scientific Motivation and Observational Facility Contributions for T-PARC:


The talks in these sessions are meant to provide a flow of information from those involved in planning the experiment to the participants. The talks will describe the scientific and societal motivation for the experiment in participating countries and the aircraft, sounding, ship and other major observational facilities that these nations will provide. The talks are intended to be concise and not delve deeply into the scientific issues or flight plans, but function to provide everyone with a common background for more detailed scientific and facility discussions later in the meeting. These talks are not intended to be personal research, but representative of the broad goals of national efforts.



            8:45 am – 9:30 am                    Asian participation in T-PARC

                                                            Session chair: Simon Chang

                                    T-PARC China                                                Dehui Chen

                                    Plans for T-PARC/TH-08 in Japan                   T. Nakazawa-san

Meteo. Research Ins.

Typhone hunter 2008, targeted observation, impact of the observations, typhone track and

Structure changes.


        Manned aircraft to deploy dropsondes

        Research vessels

        Enhanced winter computation

How to coordinate is a problem, from Monterey to Tokyo. Sim asked the question

of genesis issues. The answer was to use this in a mature system.


                                    Strategic Plan for Korea Participation    Hee-sang Lee

Planned for regional and global forecast systems.

8 extra stations contributed to TPARC.


Random thoughts:

Automatic OSE system setup?  With headers in the BUFR files, with packages from verification legacy softwares.



            9:30 am – 10:00 am                  North American participation in T-PARC

                                                            Session chair:

                                    T-PARC in the US                                           David Parsons

150hrs divided between ET and TC

Driftsondes 1 August for 6 weeks (20 gondolas with 40 miniature dropsondes each

Potential for ensemble research through access to the operational NAEFS and TIGGE

Expertise in field project support (web sites, data catalough, operations center-support,

Data archiving)

Utilization of long history of expertise in winter storms targeting and tropical cyclone reconno.



                                    Canadian Interests                                            Chris Doyle


 Limited to use of the data


 Assessment of 3-7 day high-impact weather genesis by operational meteoro at MSC pacific weather Center in Vancouver

Additional radiosondes

T-PARC winter phase contribution; $50K

T-PARC winter phase IOP

Initial testing period: Jan-March 2009



10:00 am – 10:45 am                European participation in T-PARC

                                                Session chair: Jishan Xue

                                    German Research Interests and Facilities           Martin Weissmann

       Falcon plans for T-PARC 2008


                                    (UK) Met Office                                              Tim Hewson

1.Assim problems (during and after ET)


Presented a case Sep 2006, a tropical storm: worse analysis

Boundary layer problem?

Gordon “minefield” case

2.Boundary layer structure during ET

Implications for assimilation, of conventional data and satellite surface winds – e.g. QuickScat

TC – Bogussing

With extra observations, the TC-bogussing advantages should be marginal?





                                    France Space Agency (CNES)             Andre Vargas


10:45 am – 11:00 am                Coffee break


11:00 am – 11:15 am                Australian participation in T-PARC

                                                Session chair: Yi-Leng Chen

                                    BMRC Research Interests                                Noel Davidson


Collaborative Experiments:


A number of experiments are planned to occur within a similar time frame as T-PARC. Some are closely connected to T-PARC in their experimental design and others are simply two-way opportunities for collaboration. The talks will describe the scientific and societal motivation for the experiment and the observational facilities. The talks are intended to provide everyone with a common background for more detailed scientific and facility discussions later in the meeting.



11:15 am – 12:00 pm               Presentations on Possible Collaborative Experiments

                                                Session chair: Sim Aberson                  


Palau Experiment                                              H. Yamada-san

TCS-08                                                           Pat Harr

NRL Tropical Cyclone Targeting                      Rolf Langland




            12:00 pm – 1:30 pm                 Lunch


1:30 pm – 3:00 pm       Presentations on Possible Collaborative Experiments

                                                Session chair: Hyun Mee Kim and Gary Wicks

DOTSTAR                                                      Chun-Chieh Wu Typhoons and large-scale dynamics                      Ming-dah Chou SoWMEX-08                                                 Ben Jou

                                    Korean Heavy Rainfall Program                        Dong-kyou Lee

Expts. of the WWRP/monsoon program           C.P. Chang

                                    Arctic-IPY                                                       David Bromwich


            3:00 pm – 3:15 pm       Coffee break




Science and Strawplans for Experimental Design:

Session chairs: David Raymond and Kevin Cheung


These presentations on some of the primary scientific topics of interest to the experiment are intended to delve deeper into the scientific issues and propose straw plans for observational (flight track, soundings, satellite ops) and modeling strategies to meet these scientific goals. The two presenters for each topic are challenged to come up with a single presentation and encouraging input from other researchers to present a consensus viewpoint, and with some consideration of competing options, rather than their own research ideas. The presenters are expected to have an integrated view that includes all relevant airborne, sounding, ship and satellite measurements, plus some preliminary views on the relevance of operational and research modeling. Be concise and allow time for discussion.



            3:15 pm – 3:35 pm       Genesis, Structure and Intensification of Tropical                                                              Cyclones

                                                                        Russ Elsberry and H. Yamada-san


            3:35 pm – 3:55 pm       Typhoon Targeting and Recurvature

                                                                        T. Nakazawa-san and Dehui Chen


            3:55 pm – 4:15 pm       Extratropical Transition and Downstream Effects

                                                                        Sarah Jones and Chris Davis


            4:15 pm – 4:35 pm       Winter T-PARC

                                                                        Zoltan Toth and Ron Gelaro


            5:05 pm – 6:00 pm       Discussion


            6:30 pm – 7:00 pm       Icebreaker


            7:00 pm -- ?                 Workshop banquet




5 December 2007:


7:30 am – 8:30 am        Continental Breakfast


8:30 am – 8:45 Charge to Working Groups

                                                                        David Parsons and Pat Harr


Develop an concise description of your scientific objectives

What platforms and/or instruments (both exp. And opr) are required for your research?

How will these facilities be used (flight tracks, freq of the deployment of sondes,

Launching of driftsondes in clusters, etc)?

What are your plans for modeling and impact studies? Real time or retrospective?

What needs to you you for operational and/or special products?

How will you interact with the other components of T-PARC and with the collaborative experiments?

Experimental Design:


The charge to the working groups is to begin the organization of the materials required for an operations plan. For example, such a major field experiment with multiple aircraft will require an operations plan that contains a series of preselected flight plans that can be adapted to the specific goals of an aircraft mission. The desired operations for dropsondes from the research aircraft and driftsonde should be outlined as well as radiosondes from ships and ground-based stations. The working group discussions can contain short presentations by individual scientists on their scientific reasoning for the operational scenarios. The general intent, however, is to produce a few consensus scenarios on operations where possible rather than a large list.


Each group is assigned a leader and a rapporteur.  At the end of the day, the leader and rapporteur will present a summary of the group discussion to the plenary session.  These summaries will identify the primary objectives, the assets critical to each objective, plans for utilization of the assets, and potential problems.


Working groups:


1)         Tropical Cyclone Genesis, Intensification, and                                Structure – Peter Black (Lead)

            Mike Montgomery (Rapporteur)



2)                  Targeting for Tropical Cyclone Track and               Recurvature --  Chun-Chieh Wu (Lead)

Rolf Langland (Rapporteur)



3)         Extratropical Transition and                                                                         Downstream Impacts

                                    Pat Harr (Lead)

                                    Jenni Evans (Rapporteur)



4)         Winter Storms -- Zoltan Toth (Lead)  

                                                                                    Istvan Szunyogh (Rapporteur)


Break-out Session 1:


Working Groups 1, 2, and 3 Meet Together to Discuss Operational Plans



8:45 am – 9:30 am                    Challenges and lessons learned from the 2007 Dry Runs in the US and Japan

                                                                        Pat Harr and Yamaguchi-san


9:30 am  -- 10:15 am                Report on Site Survey, Operational Requirements and Impacts on Experimental Design

                                                                        Jim Moore


10:15 am – 10:45 am                Open Discussion


Working Group 4



8:45 am – 9:15 am                    Winter logistics

                                                                        Yucheng Song



10:15 am – 10:45 am                Working Group #4: Invitation for short presentations on your Winter T-PARC science goals (e.g., Y. Asuma, R. Stull, ?) and how it impacts facilities, data archival and modeling needs


A winter science plan has been constructed and facilities outlined. Short presentations (~5 slides or less) are invited for participants who wish to propose additional scientific topics and/or modifications to the facility plan for the winter program. If your work and facility vision is covered by the existing plan please resist the temptation to make a presentation so that the time can be reserved for discussion.



10:45 am – 11:00 am                Coffee Break



11:00 am – 12:00 pm               Working Groups #1-4 --- Meet Separately:


Working groups #1 -3: Invitation for short presentations by individuals on their science goals and how their vision



Short presentations (~5 slides or less) are invited for participants who wish to propose additional scientific topics and/or modifications to the facility plans for these topics. If your work and facility vision is covered by the existing plan please resist the temptation to make a presentation so that the time can be reserved for discussion.


Working Group #4: Consensus on observational strategies


 DTS needs to march to VT time for a serious of targeting guidance.

Fixed verification regions? (Ron Gelaro)

Nakazawa, Pat (for ET phase)

Span in lead time: 10 days.

Overlay on different field.

Satellite paths (display)

Nomination of lead users (about 10 people would have the passwords)

Inputs from 10 users and 3 people would decide which tracks to fly


ET: Pat Harr


SAC requests – schedule issues







12:00 pm – 1:00 pm                 Lunch



1:00 pm – 2:00 pm                   Working Groups # 1-3 Continue to Meet Separately: Discussion toward consensus on operations


2:00 pm – 3:15 pm                   Working Group #1 Continues to Meet Separately – Consensus on operations


                                                Working Group #2 and  #3: Meet together to discussion joint operations on recurvature,  ET and heavy rainfall – Discussion leads – Sarah Jones, Nakazawa-san and Dong Kyou Lee


                                                Working Group #4 Continues to Meet Separately: Focus on Defining a Common Strategy to Calculate Sensitive Areas and for Winter Impact Studies

                                                Session chairs: Tim Hewson and Zoltan Toth --- Discussion and possible brief     presentations by individuals (e.g., Craig Bishop or James Doyle, Chris Doyle, Roland Stull, Tim Hewson, Zoltan Toth) participating in an effort to produce sensitive area calculations



3:15 pm – 4:00 pm                   Coffee Break --- Chairs and rapporteurs prepare their presentations



4:00 pm – 6:00 pm                   Working group chairs presentations,            discussion and identification of action items

                                                                        i) Identify science                                                                      objectives

                                                                                    ii) Identify the operational                                                                                                                      components that are best                                                                                                          suited to achieving these                                                                                                            objectives;

iii) Identify consensus flight tracks                                  potential operational                                           constraints.  


                                    Discussion of objectives relative to each                                                                                    experiment component







6 December 2007:


7:00 am – 8:15 am                    Continental Breakfast



Invitation for input from Program/Funding Managers


            8:15 am – 8:30 am


Cross-cutting Issues


8:30 am – 9:00 am        Conventional and adaptive satellite observations -- Presentation and Discussion Leads: Chris Velden and Jeff Hawkins.




9:00 am – 10:00 am                  Modeling, sensitive area calculations, data assimilation and impact studies – Short presentations are invited from groups planning work in this area

Session chairs: T. Miyoshi-san and Zoltan Toth --- Summary of winter plans for this category and possible brief presentations by individuals (e.g., Craig Bishop or James Doyle, Dehui Chen, Tim Hewson, Hee-sang Lee, T. Miyoshi-san, Ryan Torn, Zoltan Toth, Chun-chieh Wu) participating in an effort to produce sensitive area calculations


Decision making, forecasting and a straw-plan for the operations center


This session will consist of presentations of strawplans for these topics followed by periods of discussion leading to a consensus plan.


10:00 am – 10:30 am                Working on Three Continents: Strawplan for forecasting, operational planning, decision making and operations

                                                                        Jim Moore with assistance from                                    Yamaguchi-San, Dick Dirks and                             Jose Meitin


10:30 am – 11:00 am                Discussion


11:00 am – 11:15 am                Coffee break


11:15 am -- 11:45 am               Products Needs and Data Catalog for Operations  and Research: Presentation and Discussion

                                                            Steve Williams and Chris Burghart


11:45 am – 12:15 pm               Data archiving,  Final Analyses/Reanalyses and Data Access Policies:

Discussion lead: David Parsons


12:15 pm – 1:00 pm                 Action Items, Writing Assignments for an Operations Plan, and Responsibilities

Discussion leads: Jim Caughey (action items) and Jim Moore (Operations Plan)




======================End of Workshop====================


1:00 pm --- up to 5:00 pm        Working lunch and subsequent meeting for team involved in writing the operations plan