Geophysical Institute Magnetometer Array: Magnetic Field Data in Real-Time for Researchers
Abstract
Magnetometer data from eight remote stations across Alaska have been collected continuously since the early 1980's by the Geophysical Institute Magnetometer Array (GIMA). These three-axis, 1Hz data, with ~ 1 nT precision, are used to determine the currents associated with auroral activity in the Alaska polar regions. A primary function of the GIMA is to supply magnetic field deflection data in real time to researchers so they can determine when to launch a sub-orbital sounding rocket from the Poker Flat Research Range into the proper auroral conditions. The aurora is a key coupling mechanism between the Earth's magnetosphere and ionosphere, and the magnetometers are used to remotely sense the ionospheric currents associated with aurora. The real-time magnetometer data are displayed through a web-based interface that functions on desktop and mobile devices. The displays are highly configurable to allow researchers the flexibility to interpret the magnetic signature they need to make a successful launch decision. The data are also available for download within 24 hours of collection. The existence of real-time data has been and will continue to be critical for successful rocket launches, however the real-time system needs to improve to meet the ever growing needs of the user community. Planned upgrades will improve the reliability and resolution of the displays as well as the ease of data download, and integration into NASA virtual observatories.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFMIN33C1564W
- Keywords:
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- 0310 ATMOSPHERIC COMPOSITION AND STRUCTURE / Airglow and aurora;
- 1964 INFORMATICS / Real-time and responsive information delivery;
- 2407 IONOSPHERE / Auroral ionosphere