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A method to derive global O/N2 ratios from SSUSI/DMSP based on Re-AURIC algorithm
Global thermospheric O/N2 column density ratios are obtained using the SSUSI/DMSP far-ultraviolet (FUV) dayglow data and the Re-AURIC simulation results. The Re-AURIC is derived from the AURIC algorithm after some old modules are updated. The calculation processes of O/N2 ratio are then established using the simulations of Re-AURIC to calibrate the ratios of the OI 135.6\ nm emission and N2 LBHS emission from SSUSI observations. The standard deviation (1σ) and correlation co ...
Ding, GuangXing; Chen, Bo; Zhang, Xiaoxin; He, Fei;
Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 03/2020
YEAR: 2020   DOI: 10.1016/j.jastp.2020.105196
Comparison of Reference Heights of O/N 2 and ∑O/N 2 Based on GUVI Dayside Limb Measurement
We define a new thermospheric concept, the reference heights of O/N2, referring to a series of thermospheric heights corresponding to the fixed ratios of O to N2 number density. Here, based on Global Ultraviolet Imager (GUVI) limb measurement, we compare O/N2 column density ratio (∑O/N2) and the reference heights of O/N2. We choose the transition height of O and N2 (transition height hereafter), a special reference height at which O number density is equa ...
Yu, Tingting; Ren, Zhipeng; Yu, You; Yue, Xinan; Zhou, Xu; Wan, Weixing;
Published by: Space Weather Published on: 01/2020
YEAR: 2020   DOI: 10.1029/2019SW002391
Ionospheric response to a geomagnetic storm during November 8--10, 2004
This paper investigates the response of the equatorial, and near equatorial, ionosphere to geomagnetic disturbances during the period November 8-10, 2004. Ionosonde data from Trivandrum (8.5\textdegreeN 77\textdegreeE and dip 0.5\textdegreeN) and SHAR (13.5\textdegreeN, 80.2\textdegreeE, dip \~5.5\textdegreeN), magnetic field data from Tirunelveli (8.7\textdegreeN, 76.9\textdegreeE, dip latitude 0.5\textdegreeS) and Alibag (18.64\textdegreeN, 72.87\textdegreeE), and GUVI O/N2 data in the Indian longitude sector ...
Simi, K.; Manju, G.; Haridas, M.; Nayar, S.; Pant, Tarun; Alex, S.;
Published by: Earth, Planets and Space Published on: 05/2013
YEAR: 2013   DOI: 10.5047/eps.2012.09.005
Equatorial Electrojet; Equatorial ionization anomaly; geomagnetic storm; O/N2 ratio