Equatorial HF radio wave absorption measurements and the IRI |
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| Institution: | 1. National Institute of Natural Hazards, Ministry of Emergency Management, Beijing 100085, China;2. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;3. Innovation Academy for Earth Science, CAS, Beijing 100029, China;4. Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;5. Department of Geomatics, Ahmadu Bello University, Zaria, Kaduna 810282, Nigeria;6. Faculty of Astronomical and Geophysical Sciences, La Plata National University, La Plata, Buenos Aires B1900FWA, Argentina;7. National Scientific and Technical Research Council (CONICET), Buenos Aires B1904CMC, Argentina;8. Space Weather Monitoring Center, Physics Department, Helwan University, 11795 Cairo, Egypt;9. Laboratoire de Physique de l’Atmosphère et de Mécanique des Fluides/UFR-SSMT, Université Félix Houphouët Boigny, Abidjan 01BPV34, Cote d’Ivoire;10. George Mason University, Department of Physics and Astronomy, Fairfax, VA 22030, USA;11. Heliospheric Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA;1. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China;2. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China;3. Heilongjiang Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China;4. Centre for Earthquake Studies, National Centre for Physics, Islamabad, Pakistan;5. Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China |
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| Abstract: | A modification to the International Reference Ionosphere (IRI-79) electron density profile between altitudes of about 80 km and the peak of the E-region is proposed for compatibility with equatorial HF absorption measurements for Thumba, India. This is tested against independent absorption data for Colombo, Sri Lanka, and Ibadan, Nigeria. |
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