Development and Validation of a Limb-to-Disk Algorithm for Mapping Radio Occultation Measurements of Scintillation to the Vertical Propagation Geometry

Le résumé fourni par la source

Modern radio occultation (RO) receivers can routinely provide high-rate observations during ionospheric scintillation events. The high-rate data enables direct measurement of the amplitude and phase scintillation indices (S4 and sigma-phi) as well as indirect (model-inferred) estimation of turbulence strength integrated along horizontal radio-occultation ray-paths. While useful, a ground-based user of satellite radio services would generally prefer to know the scintillation indices along a space-to-ground propagation path. Under the COSMIC-2 calibration/validation program, Boston College developed a limb-to-disk (L2D) algorithm for mapping scintillation along radio occultation ray-paths from the horizontal to the vertical propagation geometry. Since turbulence strength and propagation distance both contribute to the measured S4, it is necessary to first geolocate the irregularity region before the mapping is performed.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.