How are Ozone Maps produced?
To produce the Ozone Maps, we do the following: • Collect latest hourly data from each of the air monitors listed in question #8 • Quality control all of the data fro bad or invalid values • Contour all of the data based on the location of and value at each site • Overlay the colored contours onto a map of the Sacramento region • Combine each image into a moving map with frames every 20 minutes, or three frames per hour • Send the Ozone Map to the Web site by 20 minutes past the hour
