Overview:
- High Definition Geomagnetic Model provides field values, secular variation and error estimates for a given location and time
- Error estimates take into account full/reduced resolution regions
- DMSP datasets have been calibrated for geomagnetic field modeling and these DMSP-based models have been validated with independent data from Ørsted, Swarm, and ground observatories
Ørsted Mission
• February 1999 - present
• 640-850 km altitude
• Inclination: 96.5°
• Provides only scalar data since 2005 due to star camera failure
CHAMP Mission
• July 2000 – September 2010
• 450 km initial altitude
• Drifts rapidly in local time
• Inclination: 87.3°
• Scalar and vector magnetometers
• 2-head star camera
Swarm Mission
• Successful launch in November 2013
• 3-satellite constellation (A,B,C)
• Inclination:
• A/B: 87.4°
• C: 88°
• Period: 90 minutes
• Altitude:
• A/C: 460km
• B: 510km
• 3-head star camera
• Scalar and vector magnetometers
....
View the entire Presentation:
Global Geomagnetic Field Models from DMSP
Patrick Alken et. al. - National Geophysical Data Center, NOAA, USA