Research and Development to Meet Urban Weather and Climate Needs. Dr. Richard D. Rosen NOAA Research September 23, 2004 Presentation at “Challenges in Urban Meteorology: Forum for Users and Providers”, Rockville, MD. Why Urban Meteorology Now?. Technological Advances
Dr. Richard D. Rosen
September 23, 2004
Presentation at “Challenges in Urban Meteorology: Forum for Users and Providers”, Rockville, MD
NOAA is working toward an integrated observing system to take into account a myriad of observational data and optimize their use.
Dust and Air Pollution Flowing Out of China Destined for the United States (April 2001)
3-D Wind Vectors
Data are collected in one minute intervals and the summaries are transferred every 15 minutes.
The 12 Yellow squares are currently operating sites.
The additional 12 Green squares are planned sites as funding permits
UrbaNet displays a well-known feature -- standard airport data are not appropriate for downtown dispersion applications.
Model of Lower Manhattan at NOAA’s Air Resources and EPA wind tunnel facility, at Research Triangle Park, N.C.
HYSPLIT- data are not appropriate for downtown dispersion applications. Hybrid Single Particle Lagrangian Integrated
The red dots show trajectory end points at hourly intervals.
At small scales, UrbaNet data are now being assimilated.
12 km Eta alone.
12 km Eta but nudged towards UrbaNet data.
1000 am July 23, 2004
Support a system to orderly evacuate cities during hazardous events.
Air Quality Program
Scientific Advice for Decision-Makers
Regional Assessments discover key atmospheric processes that contribute to poor air quality
Houston: refinery emissions
New England: nocturnal chemistry
Air Quality Forecasting
Operational implementation for ozone initially, then particulate matter and others
New England data are not appropriate for downtown dispersion applications.
Ohio River Valley
Areas with the Most Serious* Air Quality Problems
Chemically and Meteorologically Diverse
*Designated by EPA as “serious”, “extreme”, or “severe” for ozone and/or PM
Urban areas are especially vulnerable to high impact weather, because of the concentration of lives and property.
U.S. Hazards Assessment