Opening Remarks

Samuel P. WilliamsonFederal Coordinator

Office of the Federal Coordinator for Meteorological Services and Supporting Research

June 6 - 8, 2000

Samuel P. WilliamsonFederal Coordinator

Office of the Federal Coordinator for Meteorological Services and Supporting Research

June 6 - 8, 2000

Workshop on Multiscale Atmospheric Dispersion Modeling within the Federal Community

Workshop on Multiscale Atmospheric Dispersion Modeling within the Federal Community

OverviewOverview

• Welcome

• Workshop Context - Why are we here?

• Expected Outcomes

Welcome to Silver SpringWelcome to Silver Spring

Workshop on Multiscale Atmospheric Dispersion

Modeling within the Federal Community

Workshop on Multiscale Atmospheric Dispersion

Modeling within the Federal Community

June 6 - 8, 2000Town Center Hotel

Silver Spring, Maryland

Welcome to Silver SpringWelcome to Silver Spring

OFCM InformationalBrochure

Metro System Guide

Maps and Dining Guide

In your folder...

Why are we here?Why are we here?

May 27, 2000 - Eunice, Louisiana

Eunice, LA. (Reuters) - Hazardous-chemical specialists plan to put out fires still burning in two tank cars of plastics Tuesday and then begin moving some of 30 freight cars that derailed Saturday in southwest Louisiana, forcing 2,500 people from their homes.

Eunice, LA. (Reuters) - Hazardous-chemical specialists plan to put out fires still burning in two tank cars of plastics Tuesday and then begin moving some of 30 freight cars that derailed Saturday in southwest Louisiana, forcing 2,500 people from their homes.

Residents were ordered to flee from a 2-1/2-mile radius around the site within minutes....Residents were ordered to flee from a 2-1/2-mile radius around the site within minutes....

Dense smoke poured from the scene for almost 24 hours, police said.

... dichloropropane, acrylic acid, methyl chloride, toluene, diisocyanate, sodium hydroxide, hexane, and phenol.

AP Photo/Civil Air Patrol - Rock Palermo

CNN/KATC-TV photo CNN/KATC-TV photo

SourcesSourcesNatural AnthropogenicAnthropogenic

Dust/Sand Storms Pesticides

AllergensAllergens

Lightning-InducedForest Fire SmokeLightning-InducedForest Fire Smoke

Human-Induced Forest FiresHuman-Induced Forest Fires

PollutionPollution

Nuclear, Biological, and ChemicalNuclear, Biological, and Chemical

Oil Spills & VOCsOil Spills & VOCs

Ozone Depleting ChemicalsOzone Depleting Chemicals

Volcanic AshVolcanic Ash

(c)1995 Softkey International, Inc.

Cross-cutting agency interests...Cross-cutting agency interests...Natural AnthropogenicAnthropogenic

Dust/Sand Storms Pesticides

Volcanic AshVolcanic Ash

AllergensAllergens

Lightning-InducedForest Fire SmokeLightning-InducedForest Fire Smoke

Human-Induced Forest FiresHuman-Induced Forest Fires

PollutionPollution

Nuclear, Biological, and ChemicalNuclear, Biological, and Chemical

Oil Spills & VOCsOil Spills & VOCs

Ozone Depleting ChemicalsOzone Depleting Chemicals

Emergency ResponseEmergency Response

Economic VitalityEconomic Vitality

National SecurityNational Security

Transportation Safety and EfficiencyTransportation Safety and Efficiency

Regulatory ActivitiesRegulatory Activities

Public HealthPublic Health

Quality of LifeQuality of Life

Expected Outcomes

Requirements

Session 1

Capabilities

Session 2

?

Barriers

Session 3

Expected Outcomes

Verification, Validation, and Approval Methods

Verification, Validation, and Approval Methods

Selecting subsets to meet applications needs

Session 4

Summary

• Potential for ATD modeling to touch every aspect of our lives - effects demonstrated daily

• Growing concerns over chemical and biological terrorism demand attention

• This workshop will let us assess where we are and set a direction for the future

Opening Remarks

Dr. Darryl RandersonChief, Special Operations and Research Division,

Air Resources Laboratory, NOAA

Chairman, Joint Action Group for Atmospheric Transport and Diffusion

June 6, 2000

Dr. Darryl RandersonChief, Special Operations and Research Division,

Air Resources Laboratory, NOAA

Chairman, Joint Action Group for Atmospheric Transport and Diffusion

June 6, 2000

Workshop on Multiscale Atmospheric Dispersion Modeling within the Federal Community

Workshop on Multiscale Atmospheric Dispersion Modeling within the Federal Community

Workshop GoalWorkshop Goal

Improve agency coordination in the development and operational use of

dispersion models.

Workshop ObjectivesWorkshop Objectives

• State current modeling requirements and capabilities

• Specify new requirements/unmet needs

• Describe existing methods for validation, verification, and approval of current models and future needs

• Describe a process for establishing model subsets for specific applications

• Find solutions to agency-identified technical barriers

• Identify opportunities for leveraging model development and model validation, verification, and approval

• State current modeling requirements and capabilities

• Specify new requirements/unmet needs

• Describe existing methods for validation, verification, and approval of current models and future needs

• Describe a process for establishing model subsets for specific applications

• Find solutions to agency-identified technical barriers

• Identify opportunities for leveraging model development and model validation, verification, and approval

Session 1Session 1

• User Requirements for Dispersion Modeling– Agencies’ current requirements

– How current requirements are being met

– New/unmet requirements

Tuesday morningTuesday morning

Session 2Session 2

• Agency Dispersion Modeling Capabilities– What models are currently used for

operations?– How does modeling capability meet agency

requirements?– How are models evaluated?– Who are the users; what products are

distributed; what are training requirements?– Research/development for unmet user needs

Tuesday afternoonTuesday afternoon

Session 3Session 3

• Technical Barriers to Dispersion Modeling– Turbulence and the stable boundary layer– Air-surface exchange– Probabilistic modeling– Mesoscale and surface layer transport– Neighborhood-scale processes

Wednesday morningWednesday morning

Session 4Session 4

• Model Validation, Verification, and Approval; Model Subsets– Develop a framework for the validation,

verification, and approval of dispersion models

– Identify “subsets” of scientifically and technically sound models suitable for different operational scenarios

Wednesday afternoonWednesday afternoon

Session 5Session 5

• Summary and Wrap-Up– Panel and breakout chairs report

results and recommendations

– Next steps/follow-on actions

– Closing remarks

Thursday morningThursday morning

Let’s get started...Let’s get started...

Session 1: User Requirements for Dispersion Modeling

Session Chair: Rickey Petty, DOERapporteur: Roger Stocker, DOD/USN