Global Ionospheric Structures Observed by FORMOSAT-3/COSMIC Satellites

Details Global Ionospheric Structures Observed by FORMOSAT-3/COSMIC Satellites Global Ionospheric Structures Observed by FORMOSAT-3/COSMIC Satellites

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa33b0273l&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SA33B-0273

Computer Science

Sound

2400 Ionosphere (6929), 2403 Active Experiments, 2437 Ionospheric Dynamics

Scientific paper

Six FORMOSAT-3/COSMIC satellites were successfully launched into a circular, low-Earth orbit at around 500 km at 0140 UTC on 15 April 2006. Each satellite has a GPS Occultation Experiment (GOX) payload to operate the ionospheric radio occultation, a tiny ionospheric photometer (TIP), and a tri-band beacon (TBB) to study ionosphereic phenomena. The FORMOSAT-3/COSMIC mission will provide more than 2500 ionosphere occultation soundings daily, giving vertical structure of the ionosphere electron density between 90 and 800 km globally when the six micro-satellites reach their mission orbit at 800 km altitude with 24 degree separation in longitude. In this paper, we present the initial FORMOSAT-3/COSMIC ionospheric observations, from June to November 2006, to study the global ionosphere structure at different locations and seasons. The seasonal effect to the ionosphere peak density and heights at different longitudes will be presented. In addition to the ionosphere density profile, the total electron content (TEC), integrated from the density profiles, over the oceans where limited number of ground-based GPS receivers exist are combined with the ground-based GPS TEC over the continents to construct the global TEC map for studying the global ionospheric TEC variation during different solar activities.

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