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J. L. Lean, Meier, R. R., Picone, J. M., and Emmert, J. T., Ionospheric total electron content: Global and hemispheric climatology, Journal of Geophysical Research, vol. 116, no. A10, 2011.
J. L. Lean, Huba, J. D., McDonald, S. E., Slinker, S., Drob, D. P., Emmert, J. T., Meier, R. R., Picone, J. M., Joyce, G., Krall, J., Stephan, A., Roach, K. A., Knight, H., Plunkett, S. P., Wu, C. - C., Wood, B. E., Wang, Y. - M., Howard, R. A., Chen, J., Bernhardt, P. A., and Fedder, J. A., Integrating the Sun-Earth System for the Operational Environment (ISES-OE), 2010.
J. L. Lean, Emmert, J. T., Picone, J. M., and Meier, R. R., Global and regional trends in ionospheric total electron content, Journal of Geophysical Research, vol. 116, 2011.
I. T. Lee, Liu, J. Y., Lin, C. H., Oyama, K. - I., Chen, C. Y., and Chen, C. H., Ionospheric plasma caves under the equatorial ionization anomaly, Journal of Geophysical Research, vol. 117, no. A11, 2012.
I. T. Lee, Matsuo, T., Richmond, A. D., Liu, J. Y., Wang, W., Lin, C. H., Anderson, J. L., and Chen, M. Q., Assimilation of FORMOSAT-3/COSMIC electron density profiles into a coupled thermosphere/ionosphere model using ensemble Kalman filtering, Journal of Geophysical Research, vol. 117, no. A10, 2012.
W. Kyoung Lee, Kil, H., Paxton, L. J., Zhang, Y., and Shim, J. Soon, The effect of geomagnetic-storm-induced enhancements to ionospheric emissions on the interpretation of the TIMED/GUVI O/N 2 ratio, Journal of Geophysical Research: Space Physics, vol. 118, no. 12, pp. 7834 - 7840, 2013.
C. N. Lee, Min, K. W., Lee, J. - J., Hwang, J. A., Park, J., Edelstein, J., and Han, W., FUV spectrum in the polar region during slightly disturbed geomagnetic conditions, Journal of Geophysical Research, vol. 116, no. A10, 2011.
J. J. Lee, Min, K. W., Kim, V. P., Hegai, V. V., Oyama, K. - I., Rich, F. J., and Kim, J., Large density depletions in the nighttime upper ionosphere during the magnetic storm of July 15, 2000, Geophysical research letters, vol. 29, pp. 2–1, 2002.
G. A. Lehmacher, Gaulden, T. M., Larsen, M. F., and Craven, J. D., Multiple neutral density measurements in the lower thermosphere with cold-cathode ionization gauges, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 92, pp. 137 - 144, 2013.
J. Lei, Dou, X., Burns, A., Wang, W., Luan, X., Zeng, Z., and Xu, J. Y., Annual asymmetry in thermospheric density: Observations and simulations, Journal of Geophysical Research: Space Physics, vol. 118, no. 5, pp. 2503 - 2510, 2013.
J. Lei, Thayer, J. P., Lu, G., Burns, A. G., Wang, W., Sutton, E. K., and Emery, B. A., Rapid recovery of thermosphere density during the October 2003 geomagnetic storms, Journal of Geophysical Research, vol. 116, no. A3, 2011.
J. Lei, Wang, W., Thayer, J. P., Luan, X., Dou, X., Burns, A. G., and Solomon, S. C., Simulations of the equatorial thermosphere anomaly: Geomagnetic activity modulation, Journal of Geophysical Research: Space Physics, vol. 119, no. 8, pp. 6821 - 6832, 2014.
J. Lei, Thayer, J. P., Burns, A. G., Lu, G., and Deng, Y., Wind and temperature effects on thermosphere mass density response to the November 2004 geomagnetic storm, Journal of Geophysical Research, vol. 115, no. A5, 2010.
V. D Lekshmi, Balan, N., Vaidyan, V. K., Alleyne, H., and Bailey, G. J., Response of the ionosphere to super geomagnetic storms: Observations and modeling, Advances in Space Research, vol. 41, pp. 548–555, 2008.
M. Li and Parrot, M., Statistical analysis of an ionospheric parameter as a base for earthquake prediction, Journal of Geophysical Research: Space Physics, vol. 118, no. 6, pp. 3731 - 3739, 2013.
C. H. Lin, Wang, W., Hagan, M. E., Hsiao, C. C., Immel, T. J., Hsu, M. L., Liu, J. Y., Paxton, L. J., Fang, T. W., and Liu, C. H., Plausible effect of atmospheric tides on the equatorial ionosphere observed by the FORMOSAT-3/COSMIC: Three-dimensional electron density structures, Geophysical Research Letters, vol. 34, no. 11, 2007.
C. H. Lin, Liu, J. Y., Fang, T. W., Chang, P. Y., Tsai, H. F., Chen, C. H., and Hsiao, C. C., Motions of the equatorial ionization anomaly crests imaged by FORMOSAT-3/COSMIC, Geophysical Research Letters, vol. 34, no. 19, 2007.
C. H. Lin, Lin, J. T., Chang, L. C., Liu, J. Y., Chen, C. H., Chen, W. H., Huang, H. H., and Liu, C. H., Observations of global ionospheric responses to the 2009 stratospheric sudden warming event by FORMOSAT-3/COSMIC, Journal of Geophysical Research, vol. 117, no. A6, 2012.
C. H. Lin, Hsiao, C. C., Liu, J. Y., and Liu, C. H., Longitudinal structure of the equatorial ionosphere: Time evolution of the four-peaked EIA structure, Journal of Geophysical Research, vol. 112, no. A12, 2007.
C. H. Lin, Richmond, A. D., Liu, J. Y., Yeh, H. C., Paxton, L. J., Lu, G., Tsai, H. F., and Su, S. - Y., Large-scale variations of the low-latitude ionosphere during the October–November 2003 superstorm: Observational results, Journal of Geophysical Research, vol. 110, no. A9, 2005.
K. Liou, Newell, P. T., Zhang, Y. - L., and Paxton, L. J., Statistical comparison of isolated and non-isolated auroral substorms, Journal of Geophysical Research: Space Physics, vol. 118, no. 5, pp. 2466 - 2477, 2013.
K. Liou, Zhang, Y. - L., Newell, P. T., Paxton, L. J., and Carbary, J. F., TIMED/GUVI observation of solar illumination effect on auroral energy deposition, Journal of Geophysical Research, vol. 116, no. A9, 2011.
J. Y. Liu, Lin, C. Y., Lin, C. H., Tsai, H. F., Solomon, S. C., Sun, Y. Y., Lee, I. T., Schreiner, W. S., and Kuo, Y. H., Artificial plasma cave in the low-latitude ionosphere results from the radio occultation inversion of the FORMOSAT-3/COSMIC, Journal of Geophysical Research, vol. 115, no. A7, 2010.
G. Liu, Immel, T. J., England, S. L., Frey, H. U., Mende, S. B., Kumar, K. K., and Ramkumar, G., Impacts of atmospheric ultrafast Kelvin waves on radio scintillations in the equatorial ionosphere, Journal of Geophysical Research: Space Physics, vol. 118, no. 2, pp. 885 - 891, 2013.
J. Liu, Liu, L., Zhao, B., Wei, Y., Hu, L., and Xiong, B., High-speed stream impacts on the equatorial ionization anomaly region during the deep solar minimum year 2008, Journal of Geophysical Research, vol. 117, no. A10, 2012.
H. Liu and Watanabe, S., Seasonal variation of the longitudinal structure of the equatorial ionosphere: Does it reflect tidal influences from below?, Journal of Geophysical Research, vol. 113, no. A8, 2008.
J. Liu, Liu, L., Zhao, B., Lei, J., Thayer, J. P., and McPherron, R. L., Superposed epoch analyses of thermospheric response to CIRs: Solar cycle and seasonal dependencies, Journal of Geophysical Research, vol. 117, 2012.
J. Liu, Chen, R., An, J., Wang, Z., and Hyyppa, J., Spherical cap harmonic analysis of the Arctic ionospheric TEC for one solar cycle, Journal of Geophysical Research: Space Physics, vol. 119, no. 1, pp. 601 - 619, 2014.
L. Liu, He, M., Yue, X. 'an, Ning, B., and Wan, W., Ionosphere around equinoxes during low solar activity, Journal of Geophysical Research, vol. 115, no. A9, 2010.
L. Liu, Le, H., and Zhao, B., Recent Progresses on Ionospheric Climatology Investigations, Chin. J. Space Sci., vol. 32, no. 5, pp. 665-680, 2012.
J. Liu, Liu, L., Nakamura, T., Zhao, B., Ning, B., and Yoshikawa, A., A case study of ionospheric storm effects during long-lasting southward IMF B z -driven geomagnetic storm, Journal of Geophysical Research: Space Physics, vol. 119, no. 9, pp. 7716 - 7731, 2014.
J. Liu, Liu, L., Zhao, B., and Wan, W., Influence of interplanetary solar wind sector polarity on the ionosphere, Journal of Geophysical Research, vol. 117, no. A8, 2012.
H. - L. Liu and Vadas, S. L., Large-scale ionospheric disturbances due to the dissipation of convectively-generated gravity waves over Brazil, Journal of Geophysical Research: Space Physics, vol. 118, no. 5, pp. 2419 - 2427, 2013.
G. Lu, Goncharenko, L., Nicolls, M. J., Maute, A., Coster, A., and Paxton, L. J., Ionospheric and thermospheric variations associated with prompt penetration electric fields, Journal of Geophysical Research, vol. 117, no. A8, 2012.
G. Lu, Li, W. H., Raeder, J., Deng, Y., Rich, F., Ober, D., Zhang, Y. L., Paxton, L. J., Ruohoniemi, J. M., Hairston, M., and Newell, P., Reversed two-cell convection in the Northern and Southern hemispheres during northward interplanetary magnetic field, Journal of Geophysical Research, vol. 116, no. A12, 2011.
X. Luan, Wang, W., Lei, J., Burns, A., Dou, X., and Xu, J. Y., Geomagnetic and auroral activity driven by corotating interaction regions during the declining phase of Solar Cycle 23, Journal of Geophysical Research: Space Physics, vol. 118, no. 3, pp. 1255 - 1269, 2013.
X. Luan, Wang, W., Burns, A., Solomon, S., Zhang, Y., Paxton, L. J., and Xu, J. Y., Longitudinal variations of nighttime electron auroral precipitation in both the Northern and Southern hemispheres from the TIMED global ultraviolet imager, Journal of Geophysical Research, vol. 116, no. A3, 2011.
X. Luan, Wang, W., Burns, A. G., Solomon, S. C., Zhang, Y., and Paxton, L. J., Unusual declining phase of solar cycle 23: Weak semi-annual variations of auroral hemispheric power and geomagnetic activity, Geophysical Research Letters, vol. 36, no. 22, 2009.
X. Luan, Wang, W., Burns, A., Solomon, S., Zhang, Y., and Paxton, L. J., Seasonal and hemispheric variations of the total auroral precipitation energy flux from TIMED/GUVI, Journal of Geophysical Research, vol. 115, no. A11, 2010.
X. Luan, Wang, W., Dou, X., Burns, A., and Yue, X., Longitudinal variations of the nighttime E layer electron density in the auroral zone, Journal of Geophysical Research: Space Physics, vol. 120, no. 1, pp. 825 - 833, 2015.
H. Lühr and Marker, S., High-Latitude Thermospheric Density and Wind Dependence on Solar and Magnetic Activity. Dordrecht: Springer Netherlands, 2013, pp. 189 - 205.
A. T. Y. Lui, Zheng, Y., Zhang, Y., Angelopoulos, V. A. S. S. I. L. I. S., Parks, G. K., Mozer, F. O. R. R. E. S. T. S., Rème, H., Kistler, L. Y. N. N. M., Dunlop, M. W., Gustafsson, G., and Henderson, M. G., Prelude to THEMIS tail conjunction study, in Annales Geophysicae, 2007.
W. Luo, Zhu, Z., Lan, J., and Li, X., Characteristics of ionospheric north-south asymmetry and their relationship with irregularity, Wuhan University Journal of Natural Sciences, vol. 20, no. 3, pp. 240 - 246, 2015.
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R. P. Ma, Xu, J. Y., Wang, W., Chen, G. M., Yuan, W., Lei, J., Burns, A. G., and Jiang, G., Characteristics and mechanisms of the annual asymmetry of thermospheric mass density, Science China Earth Sciences, vol. 58, no. 4, pp. 540 - 550, 2015.
J. L. Machol, Green, J. C., Redmon, R. J., Viereck, R. A., and Newell, P. T., Evaluation of OVATION Prime as a forecast model for visible aurorae, Space Weather: The International Journal of Research and Applications, vol. 10, 2012.
L. Maes, Maggiolo, R., De Keyser, J., Dandouras, I., Fear, R. C., Fontaine, D., and Haaland, S., Solar illumination control of ionospheric outflow above polar cap arcs, Geophysical Research Letters, 2015.
R. Maggiolo, Echim, M., C. Wedlund, S., Zhang, Y., Fontaine, D., Lointier, G., and Trotignon, J. - G., Polar cap arcs from the magnetosphere to the ionosphere: kinetic modelling and observations by Cluster and TIMED, Annales Geophysicae, vol. 30, no. 2, pp. 283 - 302, 2012.
B. Mailyan, Shi, Q. Q., Kullen, A., Maggiolo, R., Zhang, Y., Fear, R. C., Zong, Q. - G., Fu, S. Y., Gou, X. C., Cao, X., Yao, Z. H., Sun, W. J., Wei, Y., and Pu, Z. Y., Transpolar arc observation after solar wind entry into the high-latitude magnetosphere, Journal of Geophysical Research: Space Physics, vol. 120, no. 5, pp. 3525 - 3534, 2015.
B. Mailyan, Shi, Q. Q., and Gou, X., Polar cap arcs correlated with solar wind entry at the high latitude magnetosphere, in 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS)2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), Beijing, China, 2014.
J. J. Makela, A review of imaging low-latitude ionospheric irregularity processes, Journal of Atmospheric and Solar-Terrestrial Physics, vol. 68, no. 13, pp. 1441 - 1458, 2006.

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