OVATION Prime Real-Time
The OVATION Prime Real-Time (OPRT) product is a real-time forecast and nowcast model of auroral power and is an operational implementation of the work by Newell et al (2009). OPRT is run every 5 minutes and the web display automatically refreshes. The model output below represents hemispheric power in Geomagnetic coordinates, oriented with local noon at the top. Thus, the top half of each polar plot represents magnetic longitudes in daylight and the bottom half represents longitudes in darkness.
The time (GMT) and total power in Gigawatts (GW) of the latest model run are listed on the top of each plot.
Solar wind observations from the ACE spacecraft are retrieved from NOAA/SWPC, then time shifted to the Earth's magnetopause and used to drive OPRT. Time shifting is computed using the "half-way-in-between" method in the same style as that used to prepare the OMNI2 solar wind dataset. From Newell et al, 2009, an empirically derived function (least squares), which is proportional to the dayside magnetic merging rate (Newell et al., 2007) is then used to produce maps of energy fluxes for 4 auroral types: monoenergetic, broadband, diffuse, and ion. These 4 auroral types are combined to produce the above maps of total auroral power.
Contact: This service is maintained by Rob Redmon and you may use the email at the bottom right to send feedback or questions.