NCEP Air Quality Forecast Verification

NWS/OST AQF Page AQF Forecasts/Information
Change FVS type: Standard Statistics       Threshold Statistics
Select fields/species: O3 Daily Max O3 PM25 Daily MAX PM25
Select time: Current     May 2009     Summer 2008 Summer 2007 Summer 2006
Select region: Whole domain East and Western U.S. NE, SE Coasts Mid West, Miss-valley North and South West Coasts N & S. Plains All regions PROD All regions PARA
Select averaged hour: 1 hr sfc average                 8 hr sfc average 24 hr sfc average (PM only)
Select forecast four: Diurnal period       06 hr 09 hr 12 hr 30 hr 33 hr 36 hr Day 1 Daily Max Day 2 Daily Max
Select statistic type: Observed and Forecast Mean       Obs Mean Forecast Mean RMSE Bias Corr
Verification Regions
Verification score definitions
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