NOAA / Space Weather Prediction Center

Fredericksburg A-index Forecast Verification


Verification Quick Links
Verification Home, Max K and GPRA, G1 (K5) Warnings, G2 (K6) Warnings,
Estimated Ap, Fredericksburg A, Geomagnetic Activity Category,
M-class Flares, X-class Flares, F10.7 Solar Flux, S1 Proton Events, S1 Event Warnings,
Glossary, Bibliography

Forecasts of Fredericksburg A index are integer forecasts of the observed daily (24 hour) geomagnetic A index at Fredericksburg, VA. Forecast lead times range from 1-day to 7-days. Verification results are provided on forecasts from July 1986(the beginning of solar cycle 22) through December 2013.

Stats Table Thumbnail Statistics Summary Tables

Observations Thumbnail Fredericksburg A-index Observed Plot

Joint Distribution Thumbnail Joint Distribution of Forecasts and Observations Plot

Quantile Thumbnail Conditional Quantile Plot

Stack Plot Thumbnail Forecast Mean Error, RMS Error, and Linear Association Plot

Skill Thumbnail Forecast Skill vs Lead Time