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G. G. Shepherd, Thuillier, G., Cho, Y. - M., Duboin, M. - L., Evans, W. F. J., Gault, W. A., Hersom, C., Kendall, D. J. W., Lathuillère, C., Lowe, R. P., McDade, I. C., Rochon, Y. J., Shepherd, M. G., Solheim, B. H., Wang, D. - Y., and Ward, W. E., The Wind Imaging Interferometer (WINDII) on the Upper Atmosphere Research Satellite: A 20 year perspective, Reviews of Geophysics, vol. 50, no. 2, 2012.
B. G. Shpynev, Zolotukhina, N. A., Polekh, N. M., Ratovsky, K. G., Chernigovskaya, M. A., Belinskaya, A. Y., Stepanov, A. E., Bychkov, V. V., Grigorieva, S. A., Panchenko, V. A., Korenkova, N. A., and Mielich, J., The ionosphere response to severe geomagnetic storm in March 2015 on the base of the data from Eurasian high-middle latitudes ionosonde chain, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 180, pp. 93 - 105, 2018.
P. R. Shreedevi and Choudhary, R. K., Impact of Oscillating IMF B z During 17 March 2013 Storm on the Distribution of Plasma Over Indian Low-Latitude and Mid-Latitude Ionospheric Regions, Journal of Geophysical Research: Space Physics, vol. 122, no. 11, pp. 11,607 - 11,623, 2017.
P. R. Shreedevi, Thampi, S. V., Chakrabarty, D., Choudhary, R. K., Pant, T. Kumar, Bhardwaj, A., and Mukherjee, S., On the latitudinal changes in ionospheric electrodynamics and composition based on observations over the 76-77°E meridian from both hemispheres during a geomagnetic storm, Journal of Geophysical Research: Space Physics, 2016.
P. R. Shreedevi, Choudhary, R. K., Yu, Y., and Thomas, E. G., Morphological study on the ionospheric variability at Bharati, a polar cusp station in the southern hemisphere, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 193, p. 105058, 2019.
J. Shuai, Zhang, S. D., Huang, C. M., YI, F., Huang, K. M., Gan, Q., and Gong, Y., Climatology of global gravity wave activity and dissipation revealed by SABER/TIMED temperature observations, Science China Technological Sciences, vol. 57, no. 5, pp. 998 - 1009, 2014.
D. Shultz, 'Space bubbles' may have led to deadly battle in Afghanistan, Science AAAS, 2014. [Online]. Available: http://news.sciencemag.org/earth/2014/09/space-bubbles-may-have-led-deadly-battle-afghanistan.
L. N. Sidorova and Filippov, S. V., Four-peak longitudinal distribution of the equatorial plasma bubbles observed in the topside ionosphere: Possible troposphere tide influence, Advances in Space Research, vol. 61, no. 6, pp. 1412 - 1424, 2018.
K. G. Simi, Manju, G., Haridas, M. K. Madhav, Nayar, S. R. Prabhak, Pant, T. Kumar, and Alex, S., Ionospheric response to a geomagnetic storm during November 8–10, 2004, Earth, Planets and Space, vol. 65, no. 4, pp. 343 - 350, 2013.
G. Sivavaraprasad, D. Ratnam, V., R. Padmaja, S., Sharvani, V., Saiteja, G., Mounika, Y. S. R., and P. Harsha, B. Sree, Detection of ionospheric anomalies during intense space weather over a low-latitude GNSS station, Acta Geodaetica et Geophysica, vol. 52, no. 4, pp. 535 - 553, 2017.
E. Slominska, Blecki, J., Lebreton, J. - P., Parrot, M., and Slominski, J., Seasonal trends of nighttime plasma density enhancements in the topside ionosphere, Journal of Geophysical Research: Space Physics, vol. 119, no. 8, pp. 6902 - 6912, 2014.
J. J. Sojka, David, M., Schunk, R. W., and Heelis, R. A., A modeling study of the longitudinal dependence of storm time midlatitude dayside total electron content enhancements, Journal of Geophysical Research, vol. 117, no. A2, 2012.
D. Solomentsev, Cherniak, Y., Titov, A., Khattatov, B., and Khattatov, V., Towards estimation of atmospheric tidal effects on the ionosphere via data assimilation, Advances in Space Research, vol. 56, no. 9, pp. 1854 - 1862, 2015.
S. C. Solomon, Numerical models of the E-region ionosphere, Advances in Space Research, vol. 37, no. 5, pp. 1031 - 1037, 2006.
S. C. Solomon, Qian, L., and Burns, A. G., The anomalous ionosphere between solar cycles 23 and 24, Journal of Geophysical Research: Space Physics, vol. 118, no. 10, pp. 6524 - 6535, 2013.
S. C. Solomon, Burns, A. G., Emery, B. A., Mlynczak, M. G., Qian, L., Wang, W., Weimer, D. R., and Wiltberger, M., Modeling studies of the impact of high-speed streams and co-rotating interaction regions on the thermosphere-ionosphere, Journal of Geophysical Research, vol. 117, 2012.
S. C. Solomon, Global modeling of thermospheric airglow in the far ultraviolet, Journal of Geophysical Research: Space Physics, vol. 122, no. 7, pp. 7834 - 7848, 2017.
T. Sori, Shinbori, A., Otsuka, Y., Tsugawa, T., and Nishioka, M., Characteristics of GNSS total electron content enhancements over the mid‐latitudes during a geomagnetic storm on November 7 and 8, 2004, Journal of Geophysical Research: Space Physics, 2019.
T. Sotirelis, Korth, H., Hsieh, S. - Y., Zhang, Y., Morrison, D., and Paxton, L., Empirical relationship between electron precipitation and far-ultraviolet auroral emissions from DMSP observations, Journal of Geophysical Research: Space Physics, vol. 118, no. 3, pp. 1203 - 1209, 2013.
S. Sridharan, Seasonal Variations of Low‐Latitude Migrating and Nonmigrating Diurnal and Semidiurnal Tides in TIMED‐SABER Temperature and Their Relationship With Source Variations, Journal of Geophysical Research: Space Physics, vol. 124, no. 5, pp. 3558 - 3572, 2019.
V. K. D. Srinivasu, Prasad, D. S. V. V. D., Niranjan, K., Seemala, G. K., and Venkatesh, K., L-band scintillation and TEC variations on St. Patrick’s Day storm of 17 March 2015 over Indian longitudes using GPS and GLONASS observations, Journal of Earth System Science, vol. 128, no. 3, 2019.
S. Sripathi, Kakad, B., and Bhattacharyya, A., Study of equinoctial asymmetry in the Equatorial Spread F (ESF) irregularities over Indian region using multi-instrument observations in the descending phase of solar cycle 23, Journal of Geophysical Research, vol. 116, no. A11, 2011.
A. W. Stephan, Finn, S. C., Cook, T. A., Geddes, G., Chakrabarti, S., and Budzien, S. A., Imaging of the Daytime Ionospheric Equatorial Arcs With Extreme and Far Ultraviolet Airglow, Journal of Geophysical Research: Space Physics, vol. 124, no. 7, pp. 6074 - 6086, 2019.
A. W. Stephan, Meier, R. R., England, S. L., Mende, S. B., Frey, H. U., and Immel, T. J., Daytime O/N2 Retrieval Algorithm for the Ionospheric Connection Explorer (ICON), Space Science Reviews, vol. 214, no. 1, 2018.
A. W. Stephan, Korpela, E. J., Sirk, M. M., England, S. L., and Immel, T. J., Daytime Ionosphere Retrieval Algorithm for the Ionospheric Connection Explorer (ICON), Space Science Reviews, vol. 212, no. 1-2, pp. 645 - 654, 2017.
A. W. Stephan, Meier, R. R., and Paxton, L. J., Comparison of Global Ultraviolet Imager limb and disk observations of column O/N 2 during a geomagnetic storm, Journal of Geophysical Research, vol. 113, no. A1, 2008.
M. H. Stevens, Meier, R. R., Chu, X., DeLand, M. T., and Plane, J. M. C., Antarctic mesospheric clouds formed from space shuttle exhaust, Geophysical Research Letters, vol. 32, no. 13, 2005.
M. H. Stevens, Gustin, J., Ajello, J. M., J. Evans, S., Meier, R. R., Kochenash, A. J., Stephan, A. W., A. Stewart, I. F., Esposito, L. W., McClintock, W. E., Holsclaw, G., E. Bradley, T., Lewis, B. R., and Heays, A. N., The production of Titan's ultraviolet nitrogen airglow, Journal of Geophysical Research, vol. 116, no. A5, 2011.
M. H. Stevens, Lossow, S., Siskind, D. E., Meier, R. R., Randall, C. E., Russell, J. M., Urban, J., and Murtagh, D., Space shuttle exhaust plumes in the lower thermosphere: Advective transport and diffusive spreading, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 108, pp. 50 - 60, 2014.
M. H. Stevens, Lossow, S., Fiedler, J., Baumgarten, G., übken, F. - J., Hallgren, K., Hartogh, P., Randall, C. E., Lumpe, J., Bailey, S. M., Niciejewski, R., Meier, R. R., Plane, J. M. C., Kochenash, A. J., Murtagh, D. P., and Englert, C. R., Bright polar mesospheric clouds formed by main engine exhaust from the space shuttle's final launch, Journal of Geophysical Research: Atmospheres, vol. 117, no. D19, p. n/a - n/a, 2012.
D. J. Strickland, Meier, R. R., Walterscheid, R. L., Christensen, A. B., Paxton, L. J., Morrison, D., Craven, J. D., and Crowley, G., Quiet-time seasonal behavior of the thermosphere seen in the far ultraviolet dayglow, Journal of Geophysical Research, vol. 109, no. A1, 2004.
D. J. Strickland, Daniell, R. E., Meier, Jr., R. R., and Lean, J. L., E-Layer Variations During an X-Class Flare Inferred from Far Ultraviolet Dayglow Observations, Proceedings, Ionospheric Effects Symposium, Alexandria VA. 2005.
D. J. Strickland, Lean, J. L., Meier, R. R., Christensen, A. B., Paxton, L. J., Morrison, D., Craven, J. D., Walterscheid, R. L., Judge, D. L., and McMullin, D. R., Solar EUV irradiance variability derived from terrestrial far ultraviolet dayglow observations, Geophysical research letters, vol. 31, 2004.
D. J. Strickland, Evans, J. S., and Correira, J., Comment on “Long-term variation in the thermosphere: TIMED/GUVI observations” by Y. Zhang and L. J. Paxton, Journal of Geophysical Research, vol. 117, no. A7, 2012.
D. J. Strickland, Lean, J. L., Daniell, R. E., Knight, H. K., Woo, W. K., Meier, R. R., Straus, P. R., Woods, T. N., Eparvier, F. G., McMullin, D. R., Christensen, A. B., Morrison, D., and Paxton, L. J., Constraining and validating the Oct/Nov 2003 X-class EUV flare enhancements with observations of FUV dayglow and E -region electron densities, Journal of Geophysical Research, vol. 112, no. A6, 2007.
D. J. Strickland, Daniell, R. E., Meier, R. R., Lean, J. L., Straus, P. R., Morrison, M. D., and Paxton, L. J., E-Layer Variations During X-Class Flares Inferred from Far Ultraviolet Dayglow Observations, AGU Fall Meeting Abstracts, p. B1222, 2005.
C. L. Su, Chen, H. C., Chu, Y. H., Chung, M. Z., Kuong, R. M., Lin, T. H., Tzeng, K. J., Wang, C. Y., Wu, K. H., and Yang, K. F., Meteor radar wind over Chung-Li (24.9°N, 121°E), Taiwan, for the period 10-25 November 2012 which includes Leonid meteor shower: Comparison with empirical model and satellite measurements, Radio Science, vol. 49, no. 8, pp. 597 - 615, 2014.
W. Bo Sui, Song, K. Fei, and Zhang, P. Jie, The Design of Space Scanning Mirror Control System Based on Optimal Tracking Controller, Advanced Materials Research, vol. 546-547, pp. 790 - 794, 2012.
S. N. G. K. Sumod, Pant, T. K., and Ajesh, A. P., Signatures of Sudden Storm Commencement on the equatorial thermospheric dayglow, Journal of Space Weather and Space Climate, vol. 9, p. A31, 2019.
Y. - Y. Sun, Matsuo, T., Araujo-Pradere, E. A., and Liu, J. - Y., Ground-based GPS observation of SED-associated irregularities over CONUS, Journal of Geophysical Research: Space Physics, vol. 118, no. 5, pp. 2478 - 2489, 2013.
X. Sun, Meng, N., Xu, Z., Lam, E. Y., and So, H. K. - H., Sparse Hierarchical Nonparametric Bayesian learning for light field representation and denoising, in 2016 International Joint Conference on Neural Networks (IJCNN)2016 International Joint Conference on Neural Networks (IJCNN), Vancouver, BC, Canada, 2016.
S. Sunda, Vyas, B. M., and Khekale, P. V., Storm time spatial variations in TEC during moderate geomagnetic storms in extremely low solar activity conditions (2007–2009) over Indian region, Advances in Space Research, vol. 52, no. 1, pp. 158 - 176, 2013.
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H. Takahashi, Taylor, M. J., Pautet, P. - D., Medeiros, A. F., Gobbi, D., Wrasse, C. M., Fechine, J., Abdu, M. A., Batista, I. S., Paula, E., Sobral, J. H. A., Arruda, D., Vadas, S. L., Sabbas, F. S., and Fritts, D. C., Simultaneous observation of ionospheric plasma bubbles and mesospheric gravity waves during the SpreadFEx Campaign, Annales Geophysicae, vol. 27, no. 4, pp. 1477 - 1487, 2009.
E. R. Talaat, Yee, J. - H., Hsieh, S. - Y., Paxton, L. J., DeMajistre, R., Christensen, A. B., and Bilitza, D., The quiet nighttime low-latitude ionosphere as observed by TIMED/GUVI, Advances in Space Research, vol. 51, no. 4, pp. 661 - 676, 2013.
Y. Tang, Retrieving ionospheric electron density profile from FUV spectral remote sensing measurements, Diqiu Wuli Xuebao, vol. 54, no. 4, pp. 1077-1083, 2013.
F. Tesema, Damtie, B., and Nigussie, M., The response of the ionosphere to intense geomagnetic storms in 2012 using GPS-TEC data from East Africa longitudinal sector, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 135, pp. 143 - 151, 2015.
S. V. Thampi, Shreedevi, P. R., Choudhary, R. K., Pant, T. Kumar, Chakrabarty, D., Sunda, S., Mukherjee, S., and Bhardwaj, A., Direct observational evidence for disturbance dynamo on the daytime low-latitude ionosphere: A case study based on the 28 June 2013 space weather event, Journal of Geophysical Research: Space Physics, vol. 121, no. 10, pp. 10,064 - 10,074, 2016.
J. P. Thayer, Liu, X., Lei, J., Pilinski, M., and Burns, A. G., The impact of helium on thermosphere mass density response to geomagnetic activity during the recent solar minimum, Journal of Geophysical Research, vol. 117, no. A7, 2012.
E. M. B. Thiemann, Dominique, M., Pilinski, M. D., and Eparvier, F. G., Vertical Thermospheric Density Profiles From EUV Solar Occultations Made by PROBA2 LYRA for Solar Cycle 24, Space Weather, vol. 15, no. 12, pp. 1649 - 1660, 2017.
R. Trivedi, Jain, A., Jain, S., and Gwal, A. K., Study of TEC changes during geomagnetic storms occurred near the crest of the equatorial ionospheric ionization anomaly in the Indian sector, Advances in Space Research, vol. 48, no. 10, pp. 1617 - 1630, 2011.

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