Comparison of COSMIC ionospheric measurements with ground-based observations and model predictions: Preliminary results

Jiuhou Lei, Stig Syndergaard, Alan G. Burns, Stanley C. Solomon, Wenbin Wang, Zhen Zeng, Raymond G. Roble, Qian Wu, Ying Hwa Kuo, John M. Holt, Shun Rong Zhang, David L. Hysell, Fabiano S. Rodrigues, Chien H. Lin

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240 引文 斯高帕斯(Scopus)

摘要

Electron densities retrieved from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) measurements are compared with those measured by incoherent scatter radars (ISR) and ionosondes in this paper. These results show that electron density profiles retrieved from COSMIC RO data are in agreement with the ISR and ionosonde measurements. The ionospheric characteristics (NmF2 and hmF2) derived from the COSMIC satellites are also compared with those calculated by the latest International Reference Ionosphere model (IRI-2001) and the National Center for Atmospheric Research Thermosphere- Ionosphere-Electrodynamics General Circulation Model (NCAR-TIEGCM). The comparison of the magnitude of the COSMIC NmF2 data with those calculated by the IRI model and the TIEGCM is good. However, features such as the north-south asymmetry and longitudinal variation of the equatorial anomaly that are seen in the COSMIC data and the TIEGCM simulations are not fully present in the IRI model. On the other hand, the TIEGCM produces a stronger winter anomaly than that seen in either the COSMIC data or the IRI model.

原文English
文章編號A07308
期刊Journal of Geophysical Research: Space Physics
112
發行號7
DOIs
出版狀態Published - 2007 七月 1

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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