# Presentation: 281277

## AIRNow Tools 

- Prepared by:
- Alan Chan
- Sonoma Technology, Inc.
- Petaluma, CA
- The 2005 National Air Quality Conference
- Forecasting Short Course
- San Francisco, CA
- February 13, 2005

## Outline

- AIRNow Forecaster/AQ Cast
- AIRNow-Tech
- AIRNow Maps
- Questions/Answers, Comments, and Discussion

## AIRNow Forecaster (1 of 2)

- A centralized, Internet-based system that allows state and local air quality agency forecasters to quickly produce daily air quality forecasts

- One-stop portal
- Customizable
- PM2.5 and O3
- Time series and climatological plots

- E-mail _[AIRNowDMC@sonomatech.com](mailto:AIRNowDMC@sonomatech.com)__ to get your cities set up_

## AIRNow Forecaster (2 of 2)

- Regional and local forecast discussions
- Ability to deliver forecasts automatically to the AIRNow FSS and by e-mail
- Streamlined data ingestion, forecast computation, and verification processes
- Incorporation of new forecasting tools
- Classification and Regression Tree (CART)
- Phenomenological
- Photochemical model
- Regression equations
- Quick access to past forecast data and meteorological and air quality data

## AIRNow Forecaster – Regional Forecast

- Allows users to create a forecast discussion thatapplies to all cities in a region

## AIRNow Forecaster – City Forecast

- Allows users to create daily air quality forecasts and discussions out to five days for any city within a selected region

## AIRNow Forecaster – AQ Cast (1 of 2)

- AIRNow Forecaster – AQ Cast (1 of 2)

- Automatically generates and displays forecasts using different methods.

## AIRNow Forecaster – AQ Cast (2 of 2)

- AIRNow Forecaster – AQ Cast (2 of 2)

- Allows users to edit input variables and rerun forecast tools

## AIRNow Forecaster – Time Series (1 of 2)

- AIRNow Forecaster – Time Series (1 of 2)

- Allows users to quickly create and view time series plots of historic and current meteorology and air quality data from user-defined graph templates

## AIRNow Forecaster – Time Series (2 of 2)

- AIRNow Forecaster – Time Series (2 of 2)

- Allows users to modify existing user-defined time series templates or add new templates for time series graphs

## AIRNow Forecaster – Climatology

- Allows users to quickly create and view histograms of air quality data from user-defined graph templates

## AIRNow Forecaster – Forecast Verification

- AIRNow Forecaster – Forecast Verification

- Allows users to view forecast verification statistics for a selected city

## AIRNow Forecaster – Customization (1 of 2)

- AIRNow Forecaster – Customization (1 of 2)

- Allows users to modify existing links or add new links on the Regional Forecast page

## AIRNow Forecaster – Customization (2 of 2)

- AIRNow Forecaster – Customization (2 of 2)

- Allows users to customize forecast distribution lists and contents of their forecasts

## AIRNow-Tech (1 of 2)

- AIRNow-Tech is an Internet-based system that allows air quality agencies to access data in the AIRNow database.
- It’s a one-stop portal to AIRNow data, information, and events.

## AIRNow-Tech (2 of 2)

- Data Queries
- Data values
- Data summaries
- Data Mapper
- AQI History
- Other features
- Site Mapper
- Forecast Submittal System

## AIRNow-Tech – Data Queries (1 of 7)

- Why are they useful for forecasting?
- Regional real-time data
- Time series plots
- Short-term historical information

## How do I find data from neighboring sites?  

Step 1: Select sites

- Step 1: Select sites

- AIRNow-Tech – Data Queries (2 of 7)

## How do I find data from neighboring sites?  

Step 2: Select
pollutants and dates

- Step 2: Select
- pollutants and dates

- AIRNow-Tech – Data Queries (3 of 7)

## Result:  Tabulated regional real-time data useful for determining 
Transport
Carryover

- Transport
- Carryover

- AIRNow-Tech – Data Queries (4 of 7)

## Three options
CSV file
Graph
Map

- CSV file
- Graph
- Map

- AIRNow-Tech – Data Queries (5 of 7)

## Graph
Site comparison
Short-term trends
Patterns

- Site comparison
- Short-term trends
- Patterns

- AIRNow-Tech – Data Queries (6 of 7)

## Map – Data Mapper plots site locations and data simultaneously. 

- Map – Data Mapper plots site locations and data simultaneously.

- AIRNow-Tech – Data Queries (7 of 7)

## Short-term historical information (every 12 months)

- AIRNow-Tech – Data Summaries (1 of 3)

## Example 1: Which month has the most number of site days with PM2.5 AQI >100 in NYC (2004)?

January
June
July
November

- January
- June
- July
- November

- AIRNow-Tech – Data Summaries (2 of 3)

## Example 2: What is the highest ozone AQI for New England in 2004?
125
155
 166	
201

- 125
- 155
-  166
- 201

- AIRNow-Tech – Data Summaries (3 of 3)

## AIRNow-Tech – AQI History (1 of 3)

- AQI History
- 10+ years of data
- Currently ozone (PM coming soon)
- Official and preliminary data
- Continually updated
- Graphing feature
- Pivot tables

## Example 1: What are the number of federal exceedance counts (>100 AQI) for LA/Long Beach area over the past 10 years?

- AIRNow-Tech – AQI History (2 of 3)

## Example 2: What are the total number of federal exceedance counts for Atlanta, Boston, and LA during the 2004 ozone season?

- AIRNow-Tech – AQI History (3 of 3)

## AIRNow Web Site (1 of 2)

## AIRNow Web Site (2 of 2)

- Archive
- Maps

- http://www.airnow.gov/2004

## Summary

- AIRNow tools (AIRNow Forecaster, AQ Cast, AIRNow-Tech, and AIRNow maps) can help make your daily forecasting easier
- Useful features include
- forecast submittal and storage
- customizable forecast e-mails
- model output display and comparison
- data queries, mapping, and plotting