Outline
- Introduction
- Disturbance field correction (magnetosphere)
- Disturbance field correction (ionosphere)
- EMAG2 crustal grid update
How to model the magnetosphere?
- Model the “average” behavior of the various magnetospheric sources, and then modulate this with real-time indices such as
- Dst (derived from ground observatories)
- Solar wind data (ACE/DISCOVR)
- F10.7 (solar flux)
- Modeling approach from Maus and Lühr, GJI, 162, 2005.
Solar forecasting: Migration from ACE to DSCOVR
- ACE (Advanced Composition Explorer) launched Aug 1997
- Quality of ACE data quickly degrading due to aging instruments and the space environment
- DSCOVR (Deep Space Climate Observatory) launched Feb 2015
- Purpose: provide early warning of geomagnetic storms here on Earth
- 15-60 minute warning time
- DSCOVR measures solar wind with a cadence 120 times faster than ACE
....
View the entire Presentation:
New Advances in Geomagnetic Field Modeling
Patrick Alken, Arnaud Chulliat, Manoj Nair, Brian Meyer, Rick Saltus, Adam Woods, Nir Boneh - University of Colorado at Boulder, Boulder, CO: National Centers for Environmental Information, NOAA, Boulder, CO
Benny Poedjono - Schlumberger