An observing system simulation experiment for FORMOSAT-5/AIP probing topside ionospheric plasma irregularities by using DEMETER/IAP

  • Author(s): Jann-Yenq Liu, Yang-Yi Sun, Chi-Kuang Chao, Shih-Ping Chen, and Michel Parrot
  • DOI: 10.3319/TAO.2016.08.18.01(EOF5)
  • Keywords: FORMOSAT-5, AIP, DEMETER, ROCSAT, IEPI, Ion density, Irregularity
  • Citation: Liu, J. Y., Y. Y. Sun, C. K. Chao, S. P. Chen, and M. Parrot, 2017: An observing system simulation experiment for FORMOSAT-5/AIP probing topside ionospheric plasma irregularities by using DEMETER/IAP. Terr. Atmos. Ocean. Sci., 28, 111-116, doi: 10.3319/TAO.2016.08.18.01(EOF5)
  • An OSSE shows FORMOSAT-5/AIP detecting ionospheric plasma irregularities
  • FORMOSAT-5/AIP probes global nighttime and daytime plasma irregularities
  • The irregularity probability of high inclination satellites should be reconsidered
Abstract

The ion density probed by IAP (Instrument d’Analyse du Plasma) on board the DEMETER (Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions) satellite is used to find whether the science payload of Advanced Ionospheric Probe (AIP) on board FORMOSAT-5 can be employed to observe space weather of ionospheric plasma irregularities. The low-latitude irregularities within ±15° dip latitudes of the DEMETER/IAP ion density are nighttime phenomena, and become prominent in the South America-Central Africa sector almost all year round, especially during May to August. The high-latitude irregularities of the DEMETER/IAP ion density appear around ±65° dip latitude worldwide in both daytime and nighttime, and become very intense in the winter and the equinox month/hemisphere. DEMETER/IAP results show that FORMOSAT-5/AIP can be used to monitor space weather of ionospheric daytime/nighttime plasma irregularities in not only the low- but also high-latitude ionosphere.

 

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