This page is periodically updated to indicate recent developments in this web site. Scanning this page eliminates the need to examine the entire web domain for changes.


Preliminary goals and tasks for the AHAT workgroup
Note: This preliminary outline and task list was developed by Bret Schichtel and Rich Poirot. As the AHAT group takes form, some specific goals to be ...
Submitted by Bret Schichtel on 4/30/96

AIRS to SAIPLOT
What is the best way (if any) of getting the AIRS data
on this board in a form that can be read by SAI's EXTRACT
program for doing graphics post...
Submitted by Randy Finch on 4/29/96

Randy Finch has registered
Graphics postprocessing of OTAG data.
Submitted by Randy Finch on 4/29/96

Possible Sites for the Comparitive Study
Several criteria that one might consider when selecting the sites for the back trajectory comparison are: 1) Each site should be in a region of the Eastern US where the transport is dominated by different types of airmasses. 2) The sites should be...
Submitted by BretSchichtel on 4/28/96

Miscellaneous Ozone and Precursor Data Sets for OTAG Model Comparison
The goal of this activity is to (1) acquire ozone related air quality data from six different data sources and (2) prepare of these air quality data f...
Submitted by Webmaster on 4/26/96

Comparative Study: CAPITA MonteCarlo Model & HY-SPLIT Model
NOTE to Webmaster: This is not Rich Poirot offering this comment, but Paul Wishinski. Since my name starts with W it is at the bottom of the "drop-d...
Submitted by PaulWishinski on 4/26/96

Air Daily - Newsletter
AirDaily is a daily faxed newsletter covering air pollution policy and implementation of the Clean Air Act.
Submitted by Sam Spencer on 4/24/96

Advanced Air Quality Modeling-Newsletter
A quarterly newsletter to discuss advance topics of air quality modeling and environmental impact simulation
Submitted by Rudolf Husar on 4/24/96

Lisa Manning has registered
OTAG's influence on NOx regulations.
Submitted by Lisa Manning on 4/24/96

Sam Spencer has registered
Publishing a daily faxed newsletter on implementation of the Clean Air Act. We're committed to complete and timely coverage of OTAG activities as the...
Submitted by Sam Spencer on 4/23/96

Neil Wheeler has registered
Aerometric Data Analysis; Photochemical and Meteorological Modeling.
The International Center for Environmental Applications (ICEA) at
the North...
Submitted by Neil Wheeler on 4/23/96

Movies of Meteorological Data for the Eastern US
Movies of meteorological data for the Eastern US during the summer months, June-August, for 1991 - 1995 are now available. These movies include forwar...
Submitted by Bret Schichtel on 4/22/96

Jim Levis has registered
Data analysis and visualization;economic impact of
ozone abatement policy
Submitted by Jim Levis on 4/19/96

Ozone metrics for NAAQS
Clearly the current NAAQS is appropriate as the first level indicator. The new NAAQS we are looking at includes and 8 hour NAAQS, but we are still e...
Submitted by John Bachmann on 4/18/96

Re: OTAG measures of NA and other ozone metrics
This is a nice grouping of the ozone metrics parameters. In fact, I will use it on the main page for the Ozone Metrics issue/question.
Submitted by Rudolf Husar on 4/18/96

Ozone metrics for primary and secondary standard
I would suggest that the 3-month maximum, 12-h SUM06 index be used for vegetation. At a consensus meeting in January in Raleigh, NC, a group of us...
Submitted by Allen Lefohn on 4/17/96

Alan Lefohn has registered
Ozone spatial and temporal pattern, effects on vegetation
Submitted by Allen Lefohn on 4/17/96

Free Acrobat Reader Software
While most (if not all) documents on this server are in html format, we are planning to offer more documents in pdf (portable document formant). This ...
Submitted by Webmaster on 4/17/96

Alan VanArsdale has registered
Air chemistry patterns, trends, assessment, and effects.
Submitted by Alan VanArsdale on 4/17/96

Maryland Ozone Forecasting Program
Contains a descrition of the ozone forecasting program that the Maryland
Department of the Environment is undertaking during the 1996 season.
Submitted by John Sherwell on 4/16/96

OTAG/AQA Website Descripton
A description of the goals, approach, and implementation of the OTAG/AQA Website.
Submitted by Rudolf Husar on 4/16/96

Technology Transfer Network Bulletin Board System TTN BBS
The Technology Transfer Network (TTN), is a collection of electronic bulletin board systems (BBS) developed and operated by the Office of Air Quality ...
Submitted by Webmaster on 4/15/96

Tony Massaro has registered
Mobile source issues, fuel issues and overall policy issues.
Submitted by Tony Massaro on 4/13/96

Java - Slide Projector demo on the OTAG Website
A new Java applet, Slide Projector, is installed on the OTAG AQA Website for browsers that support Java (e.g. Netscape 2.01). Additional development w...
Submitted by Marin Bezic on 4/13/96

Marin Bezic has registered
developing software for automated WWW domain management
Submitted by Marin Bezic on 4/12/96

USEPA's Office of AIR & RADIATION
A winner of Point Communications Top 5% of the Web Award,here's what they said: "U.S. EPA Office of Air and Radiation Content: 40/50...
Submitted by Tom Link on 4/12/96

Tom Link has registered
OAR Website Superstructure Manager--our group developed the Official
USEPA OTAG Website. The OAR Website was recently named a Point
Communicati...
Submitted by Tom Link on 4/12/96

OTAG Policy Papers Added
The OTAG Policy Papers from the last meeting have been put on the server.
Submitted by Webmaster on 4/12/96

Pennsylvania DEP OTAG Page
OTAG background end participation of the OTAG Page of the Pennsylvania Department of Environmental Protection
Submitted by Rudolf Husar on 4/12/96

Official OTAG Home Page
The official home page for the entire OTAG activity. Has official documents, and links to related sites.
(The OTAG AQA Website has direct link to t...
Submitted by Rudolf Husar on 4/11/96

OTAG measures of NA and other ozone metrics
The question of the best OTAG measures of NA, might be viewed from 3 perspectives: regulatory, effects-relevant and analysis-oriented. 1. Regulatory ...
Submitted by Richard Poirot on 4/11/96

Adding Web Pages to the OTAG/AQA Domain
This page contains step-by-step procedures on adding web pages to this domain. This page may help people to understand the set-up of the domain.
Submitted by Webmaster on 4/11/96

AIRS AQS Re-Engineering Project
The 1990 amendments to the Clean Air Act brought new requirements for data collection, analysis, and reporting. It is time to update AIRS with new tec...
Submitted by Rudolf Husar on 4/11/96

Policy Summary: The Major Policy-Relevant Findings of SOS
New section added: Ozone managment strategies that focus on decreasing nitrogen oxide emissions will be more effective in decreasing ozone concentrations in the rural So...
Submitted by Webmaster on 4/11/96

Next AHAT Conference Call
April 25, 1996, 1:00 PM EST
Submitted by Bret Schichtel on 4/10/96

AHAT Conference Call
Minutes of AHAT Conference Call on March 29, 1996,
at 1:00 p.m.
Submitted by Carol Malinowski on 4/10/96

State Emission Inventory Contacts for OTAG
Names and phone numbers for for contact persons in each state.
Submitted by Rudolf Husar on 4/9/96

Re: HY-SPLIT back trajectory calculations: Interpolated Surface Layers
Following (with the author's permission) is an E-mail note from Barbara Stunder of NOAA's Air Resources Lab, which responds to Paul's question on the ...
Submitted by Richard Poirot on 4/6/96

Aerometric Information Retrieval System (AIRS) - EPA, OAQPS
AIRS is a computer-based repository of information about airborne pollution in the United States and various World Health Organization (WHO) member co...
Submitted by Rudolf Husar on 4/6/96

New section added to OTAG AQA Website: Policy Issues and Questions
The new section of the OTAG AQA Website is devoted to the formulation, explanations and discussion of policy-relevant technical issues and questions.
Submitted by Rudolf Husar on 4/5/96

Registration to Precede Submissions
The dorp-down list box now eliminates the need to input your name when making a submission -- all you have to do is select your name from the box. The...
Submitted by Webmaster on 4/5/96

Are current ozone models consistent with ambient and lab data?
Ozone models perform super. In fact, much better then data
Submitted by Rudolf Husar on 4/4/96

Can ambient data yield information/verification of precursor emission rates?
Emission inventories are OK here but not so there
Submitted by Rudolf Husar on 4/4/96

Do precursor concentration pattern correspond to respective emission data?
Measured precursors match emission data, sometimes
Submitted by Rudolf Husar on 4/4/96

To what degree is NA in a given area is influenced by transport from outside?
Control local sources 1 %, regional 99 % - it’s them doing it!
Submitted by Rudolf Husar on 4/4/96

What is the role of vertical transport?
??
Submitted by Rudolf Husar on 4/4/96

What are the conditions (space, time, meteorology) conducive for transport?
Control only RTP, NC - it is responsible for everything
Submitted by Rudolf Husar on 4/4/96

What is the distance (seasonal, directional) over which emissions influence NA sites?
Control within 500 km, leave the rest.
Submitted by Rudolf Husar on 4/4/96

What are the trends of NA?
RTP will have the worst NA by 2005
Submitted by Rudolf Husar on 4/4/96

What is the spatial pattern of NA according to OTAG measures?
Six metro areas in the east
Submitted by Rudolf Husar on 4/4/96

What is the size of NA areas and how is it determined?
Counties where NA is actually measured
Submitted by Rudolf Husar on 4/4/96

Air Trajectory Residence Time Analysis Investigation of Ozone Transport Pathways: 1989-95
"Trajectory Analysis" has been identified on the task list of the OTAG Air Quality Analysis Workgroup. VT DEC had agreed to devote some in-kind resour...
Submitted by Richard Poirot on 4/3/96

What is the spatio-temporal pattern of precursors, NOx, VOC, PAMS-species?
It’s them trees, everywhere
Submitted by Rudolf Husar on 4/3/96

What is the magnitude of regional ozone outside NA areas?
42 ppb!
Submitted by Rudolf Husar on 4/3/96

What are the OTAG measures of non-attainment (NA)?
Second max one hour peak; 8 hr midday average; W128
Submitted by Rudolf Husar on 4/3/96

Peter Mueller has registered
Results of analyses and modeling
Submitted by Peter Mueller on 4/3/96

Server Back-up Set for 3:00am
We now have a fully functional mirror site for our server if it goes down. This also allows for additional back-up for any files on the server. The se...
Submitted by Webmaster on 4/2/96