Coronal Hole Solar Wind Forecast §

Based on Empirical Space Weather Forecast Tool by University of Graz.
SDO image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

Version 1.0

SDO 193 Å EUV Image

NOAA SWPC Syntopic Map

DunedinAurora.NZ computer generated CH Map



Linear approximation is: Predicted windspeed = 337.81 + 482.05 * coronal hole area on meridian
Pearsons correlation |r| = 0.5234
Average Windspeed is 394.0km/s
Space weather transit time is 4.4 days