Overview:
• Contributions to the geomagnetic disturbance field
• Description of the magnetospheric model
• Validation against observatory measurements
NGDC/USGS Real-time Calculator
Represented magnetospheric disturbance fields:
- Magnetospheric variations caused by space weather
- Rotation of the Earth in the magnetosphere
- Secondary magnetic fields of electric currents, induced by time-varying magnetic fields in the conducting Earth and oceans
USGS Dst Index
- Definitive Index for the past
• Uses definitive (clean) magnetic field data
• 25 year processing span
- Near Real-time Index
• Uses preliminary (near real-time) magnetic field data
• 5-15 minute latency
- USGS versus Kyoto Dst
• Better time resolution (USGS: 1-minute, Kyoto: 1-hour)
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View the entire Presentation:
NGDC/USGS Real-time Magnetospheric Disturbance
Stefan Maus, Manoj Nair and Adam Woods - NOAA/NGDC
Jennifer Gannon, Carol Finn and Jeffrey Love - USGS