Thu Apr 10, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Xu, Jiyao, Wang, Wenbin, Zhang, Shunrong, Liu, Xiao, and Yuan, Wei, 2015. Multiday thermospheric density oscillations associated with variations in solar radiation and geomagnetic activity. Journal of Geophysical Research (Space Physics), 120(5):3829–3846, doi:10.1002/2014JA020830.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2015JGRA..120.3829X,
author = {{Xu}, Jiyao and {Wang}, Wenbin and {Zhang}, Shunrong and {Liu}, Xiao and {Yuan}, Wei},
title = "{Multiday thermospheric density oscillations associated with variations in solar radiation and geomagnetic activity}",
journal = {Journal of Geophysical Research (Space Physics)},
keywords = {thermospheric density, oscillation},
year = 2015,
month = may,
volume = {120},
number = {5},
pages = {3829-3846},
abstract = "{Thermospheric densities observed by Challenging Minisatellite Payload
and Gravity Recovery and Climate Experiment satellites during
2002-2010 and the globally averaged thermospheric densities from
1967 to 2007 have been used to investigate latitudinal,
longitudinal, and height dependences of the multiday
oscillations of thermospheric densities. The data show that the
main multiday oscillations in thermospheric densities are 27,
13.5, 9, and 7 day oscillations. The high-correlation
coefficients between the density oscillations and the F$_{10.7}$
or Ap index indicate that these oscillations are externally
driven. The 27 day density oscillation, being the strongest, is
induced by variations in solar radiation, as well as recurrent
geomagnetic activity that is the result of corotating
interaction regions (CIRs) and high-speed solar wind streams of
coronal hole origin. Density oscillations at periods of 13.5, 9,
and 7 days at solar minimum and during the declining phase are
stronger than those at solar maximum. These oscillations are
mainly associated with recurrent geomagnetic activity due to
coronal hole high-speed streams and CIRs. The multiday, periodic
oscillations of thermospheric density exhibit strong latitudinal
and longitudinal variations in the geomagnetic coordinate and
oscillate synchronously at different heights. Oscillations with
zonal wave number 0 oscillate globally, whereas those with
nonzero wave numbers are strong at high geomagnetic latitudes,
and hemispherically asymmetric. They are stronger in the
Southern Hemisphere. The spectral distributions of thermospheric
densities at different heights have almost the same latitude and
longitude structures, but the spectral magnitudes increase with
height.}",
doi = {10.1002/2014JA020830},
adsurl = {https://ui.adsabs.harvard.edu/abs/2015JGRA..120.3829X},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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