Helsinki Urban Modeling Workshop

- Use of Helsinki Mesoscale Testbed Data in Urban Atmospheric Modeling

Dates: 15-16 June, 2005

Venues:
Wed, 15 June - Vaisala Oyj, Vanha Nurmijärventie 21, 01670 Vantaa, Finland
Thu, 16 June - Hotel Arthur, Vuorikatu 19, 00100 Helsinki, Finland

Organizers: Finnish Meteorological Institute and Vaisala

Workshop theme:

Convene a small working group of scientists interested in observation and simulation of urban boundary layers. In particular, design optimum observational and modeling strategies for the unique (four-season) Helsinki Mesoscale Testbed, and plan the use of the data for effective modeling of physical and chemical processes within the urban boundary layer.

Program

Wednesday June 15, 2005
Hosted by Vaisala
Venue: Vaisala Oyj, Vanha Nurmijärventie 21, 01670 Vantaa

7:45 Shuttle-bus to Vaisala
- pickup at Scandic Marski Hotel, Mannerheimintie 10

8:30-9:00 Welcome by Pekka Ketonen, CEO, Vaisala

9:00 Introductions of participants and organizers

9:15-16:30 Presentations 20 min each + 10 min discussion

9:15 Helsinki Mesoscale Testbed, Walt Dabberdt, Vaisala & Jani Poutiainen, FMI
“What is a ‘Testbed?’ -- Overview of HTB facilities and data”

9:45 Helsinki meso met-modeling, Carl Fortelius, FMI
“Review of past modeling in Helsinki area, future modelling objectives and their input requirements”

10:15 Coffee

10:30 Urban PBL theory, Sergej Zilitinkevich, FMI/UH
“Challenges in urban surface, SBL, and PBL characterization in atmospheric models”

11:00 Urban meso-modeling, Alberto Martilli, Ciemat
“The state of the art in urban mesoscale modeling and possible uses of Helsinki Testbed data”

11:30 CFN/DNS Microscale-urban models, Rick Fry, DTRA
“Research and emergency response models, their linkage with urban meso-models, and their input data needs”

12:00 Lunch at Vaisala cafeteria

12:45-13:30 Tour of Vaisala
Tour Option 1: radiosonde production; sensor manufacturing; clean room
Tour Option 2: sensor production; clean room; optical sensors

13:30 Physical modeling, Petra Klein, University of Oklahoma
“State of the art in wind tunnel modeling of urban areas and possible uses of Helsinki data”

14:00 Urban micrometeorological flux observations and surface characterization, Sue Grimmond, Indiana University
“State of art observational techniques and use of data in urban modeling"

14:30 Data assimilation, Kirsti Salonen, FMI
” State of the art techniques and possible uses of Helsinki data”

15:00 Coffee

15:30 Weather forecasting for urban areas, Martin Best, UK MetOffice
”State of art and challenges in real-time urban weather forecasting”

16:00 Charge to the breakout sessions
Ari Karppinen, Sylvain Joffre and Walt Dabberdt

16:15 Breakout Session 1 - discuss group topics
- 3 groups to meet in parallel and begin their discussions
- see later description of the 3 groups

18:00 Wine/beer mixer and dinner at Vaisala

20:30 Shuttle bus back to hotel

8:30 FMI Welcome by Mikko Alestalo, FMI Deputy Director General

9:00 Summary of Day One and plans for Day Two, by WG Co-Leaders and WS Organizers

9:30 Breakout Session 2
Continue parallel discussions from Day One (prepare oral group-reports)

10:30 Coffee

10:45 Breakout-session group reports
each WG to make 20 min presentation followed by 10 min discussion

• Network design and data, Martin Piringer and Walt Dabberdt

• Meso- and urban-modeling, Joe Fernando and Alberto Martilli

• Microscale- and physical-modeling, Sue Grimmond and Petra Klein

12:15 Lunch at Hotel Arthur (hosted by FMI)

13:15 Plenary discussion
- continue discussions
- identify how to merge breakout-session reports
- how and where to post or publish a summary report

14:15 Coffee

14:30 Plenary discussion continues

15:30 Workshop ends

16:00 FMI tour, Martti Heikinheimo

Finnish Defence Forces’ view, Heikki Kauppinen

FMI Dispersion model group’s view, Mikhail Sofiev