Multi-instrument and multi-station observations and predictions of ionospheric irregularities (MOPII) in the East-Asia sector
Abstract
Accurate and precise specifications and predictions (or modeling) of the ionospheric electron density (Ne) irregularities are important to radio sky-wave communications and satellite navigation. Significant ionospheric irregularities, e.g. equatorial plasma bubbles (EPB), could be induced by enhanced eastward electric field, called pre-reversal enhancement (PRE), or atmospheric gravity wave. Such ionospheric irregularities could induce radio scintillations which cause signal loss and/or phase cycle slips in receiving transionospheric radio wave. In this scenario, multi-instruction and multi-station systems are proposed to be organized and/or developedfor ionospheric scintillation and equatorial spread F (ESF) specification and prediction of irregularity occurrence in the East-Asia sector. The proposed objectives are summarized below: (1) identify equatorial plasma bubble (EPB) or ESF using FS7/COSMIC2 GNSS radio occultation (RO) observations and the East-Asia VIPIR network, (2) determine global large-scale and regional meso- or small-scale EPB distributions using FS7/COSMIC2 and ground-based GNSS network, respectively, (3) characterize ionospheric irregularity intensity, scale and movement using high-sampling software-defined GNSS receivers, and (4) model and predict EPB occurrence based on correlation analysis with plasma drift and gravity wave activity parameters.Keywords: ionospheric electron density irregularity, radio scintillation, radio occultation, COSMIC2, HF radar, VIPIR, GNSS
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 08, 2024
- Source ID
- N000142412121
Entities
People
- Lung-chih Tsai
Organizations
- National Central University
- Office of Naval Research
- United States Navy