@Article{angeo-27-407-2009,
AUTHOR = {Ern, M. and Lehmann, C. and Kaufmann, M. and Riese, M.},
TITLE = {Spectral wave analysis at the mesopause from SCIAMACHY airglow data compared to SABER temperature spectra},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {1},
PAGES = {407--416},
URL = {https://angeo.copernicus.org/articles/27/407/2009/},
DOI = {10.5194/angeo-27-407-2009}
}

@Article{angeo-27-427-2009,
AUTHOR = {Hysell, D. L. and Chau, J. L. and Huba, J. D.},
TITLE = {Topside measurements at Jicamarca during solar minimum},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {1},
PAGES = {427--439},
URL = {https://angeo.copernicus.org/articles/27/427/2009/},
DOI = {10.5194/angeo-27-427-2009}
}

@Article{angeo-27-631-2009,
AUTHOR = {Aveiro, H. C. and Denardini, C. M. and Abdu, M. A.},
TITLE = {Signatures of 2-day wave in the E-region electric fields and their relationship to winds and ionospheric currents},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {2},
PAGES = {631--638},
URL = {https://angeo.copernicus.org/articles/27/631/2009/},
DOI = {10.5194/angeo-27-631-2009}
}

@Article{angeo-27-923-2009,
AUTHOR = {Christakis, N. and Haldoupis, C. and Zhou, Q. and Meek, C.},
TITLE = {Seasonal variability and descent of mid-latitude sporadic E layers at Arecibo},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {923--931},
URL = {https://angeo.copernicus.org/articles/27/923/2009/},
DOI = {10.5194/angeo-27-923-2009}
}

@Article{angeo-27-933-2009,
AUTHOR = {Chau, J. L. and Woodman, R. F. and Milla, M. A. and Kudeki, E.},
TITLE = {Naturally enhanced ion-line spectra around the equatorial 150-km region},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {933--942},
URL = {https://angeo.copernicus.org/articles/27/933/2009/},
DOI = {10.5194/angeo-27-933-2009}
}

@Article{angeo-27-967-2009,
AUTHOR = {Yokoyama, T. and Hysell, D. L. and Patra, A. K. and Otsuka, Y. and Yamamoto, M.},
TITLE = {Zonal asymmetry of daytime 150-km echoes observed by Equatorial Atmosphere Radar in Indonesia},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {967--974},
URL = {https://angeo.copernicus.org/articles/27/967/2009/},
DOI = {10.5194/angeo-27-967-2009}
}

@Article{angeo-27-975-2009,
AUTHOR = {Pancheva, D. and Mukhtarov, P. and Andonov, B.},
TITLE = {Nonmigrating tidal activity related to the sudden stratospheric warming in the Arctic winter of 2003/2004},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {975--987},
URL = {https://angeo.copernicus.org/articles/27/975/2009/},
DOI = {10.5194/angeo-27-975-2009}
}

@Article{angeo-27-1059-2009,
AUTHOR = {Clemesha, B. R. and Batista, P. P. and Buriti da Costa, R. A. and Schuch, N.},
TITLE = {Seasonal variations in gravity wave activity at three locations in Brazil},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {1059--1065},
URL = {https://angeo.copernicus.org/articles/27/1059/2009/},
DOI = {10.5194/angeo-27-1059-2009}
}

@Article{angeo-27-1175-2009,
AUTHOR = {Astafyeva, E.},
TITLE = {Effects of strong IMF B$_{z}$ southward events on the equatorial and mid-latitude ionosphere},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {1175--1187},
URL = {https://angeo.copernicus.org/articles/27/1175/2009/},
DOI = {10.5194/angeo-27-1175-2009}
}

@Article{angeo-27-1313-2009,
AUTHOR = {B\"osinger, T. and Ermakova, E. N. and Haldoupis, C. and Kotik, D. S.},
TITLE = {Magnetic-inclination effects in the spectral resonance structure of the ionospheric Alfvén resonator},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {3},
PAGES = {1313--1320},
URL = {https://angeo.copernicus.org/articles/27/1313/2009/},
DOI = {10.5194/angeo-27-1313-2009}
}

@Article{angeo-27-1509-2009,
AUTHOR = {Farley, D. T.},
TITLE = {The equatorial E-region and its plasma instabilities: a tutorial},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {4},
PAGES = {1509--1520},
URL = {https://angeo.copernicus.org/articles/27/1509/2009/},
DOI = {10.5194/angeo-27-1509-2009}
}

@Article{angeo-27-1593-2009,
AUTHOR = {Denardini, C. M. and Abdu, M. A. and Aveiro, H. C. and Resende, L. C. A. and Almeida, P. D. S. C. and Ol\'{\i}vio, \^E. P. A. and Sobral, J. H. A. and Wrasse, C. M.},
TITLE = {Counter electrojet features in the Brazilian sector: simultaneous observation by radar, digital sounder and magnetometers},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {4},
PAGES = {1593--1603},
URL = {https://angeo.copernicus.org/articles/27/1593/2009/},
DOI = {10.5194/angeo-27-1593-2009}
}

@Article{angeo-27-1605-2009,
AUTHOR = {Borries, C. and Jakowski, N. and Wilken, V.},
TITLE = {Storm induced large scale TIDs observed in GPS derived TEC},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {4},
PAGES = {1605--1612},
URL = {https://angeo.copernicus.org/articles/27/1605/2009/},
DOI = {10.5194/angeo-27-1605-2009}
}

@Article{angeo-27-1755-2009,
AUTHOR = {Whalen, J. A.},
TITLE = {The linear dependence of GHz scintillation on electron density observed in the equatorial anomaly},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {4},
PAGES = {1755--1761},
URL = {https://angeo.copernicus.org/articles/27/1755/2009/},
DOI = {10.5194/angeo-27-1755-2009}
}

@Article{angeo-27-1915-2009,
AUTHOR = {Woodman, R. F.},
TITLE = {Spread F – an old equatorial aeronomy problem finally resolved?},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {1915--1934},
URL = {https://angeo.copernicus.org/articles/27/1915/2009/},
DOI = {10.5194/angeo-27-1915-2009}
}

@Article{angeo-27-1961-2009,
AUTHOR = {Hinrichs, J. and Dyrud, L. P. and Urbina, J.},
TITLE = {Diurnal variation of non-specular meteor trails},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {1961--1967},
URL = {https://angeo.copernicus.org/articles/27/1961/2009/},
DOI = {10.5194/angeo-27-1961-2009}
}

@Article{angeo-27-2027-2009,
AUTHOR = {Maruyama, T. and Saito, S. and Kawamura, M. and Nozaki, K. and Krall, J. and Huba, J. D.},
TITLE = {Equinoctial asymmetry of a low-latitude ionosphere-thermosphere system and equatorial irregularities: evidence for meridional wind control},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {2027--2034},
URL = {https://angeo.copernicus.org/articles/27/2027/2009/},
DOI = {10.5194/angeo-27-2027-2009}
}

@Article{angeo-27-2035-2009,
AUTHOR = {Burke, W. J. and Huang, C. Y. and Sharma, R. D.},
TITLE = {Stormtime dynamics of the global thermosphere and equatorial ionosphere},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {2035--2044},
URL = {https://angeo.copernicus.org/articles/27/2035/2009/},
DOI = {10.5194/angeo-27-2035-2009}
}

@Article{angeo-27-2053-2009,
AUTHOR = {Kelley, M. C. and Ilma, R. R. and Crowley, G.},
TITLE = {On the origin of pre-reversal enhancement of the zonal equatorial electric field},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {2053--2056},
URL = {https://angeo.copernicus.org/articles/27/2053/2009/},
DOI = {10.5194/angeo-27-2053-2009}
}

@Article{angeo-27-2183-2009,
AUTHOR = {Kalogerakis, K. S. and Slanger, T. G. and Kendall, E. A. and Pedersen, T. R. and Kosch, M. J. and Gustavsson, B. and Rietveld, M. T.},
TITLE = {Remote Oxygen Sensing by Ionospheric Excitation (ROSIE)},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {2183--2189},
URL = {https://angeo.copernicus.org/articles/27/2183/2009/},
DOI = {10.5194/angeo-27-2183-2009}
}

@Article{angeo-27-2205-2009,
AUTHOR = {van de Kamp, M. M. J. L. and Cannon, P. S.},
TITLE = {Spectra of equatorial total electron content derived from GPS signals},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {5},
PAGES = {2205--2214},
URL = {https://angeo.copernicus.org/articles/27/2205/2009/},
DOI = {10.5194/angeo-27-2205-2009}
}

@Article{angeo-27-2277-2009,
AUTHOR = {Larsen, M. F. and Fesen, C. G.},
TITLE = {Accuracy issues of the existing thermospheric wind models: can we rely on them in seeking solutions to wind-driven problems?},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {6},
PAGES = {2277--2284},
URL = {https://angeo.copernicus.org/articles/27/2277/2009/},
DOI = {10.5194/angeo-27-2277-2009}
}

@Article{angeo-27-2475-2009,
AUTHOR = {Swartz, W. E. and Kelley, M. C. and Aponte, N.},
TITLE = {E- and F-region coupling between an intense sporadic E layer and a mesoscale traveling ionospheric disturbance},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {6},
PAGES = {2475--2482},
URL = {https://angeo.copernicus.org/articles/27/2475/2009/},
DOI = {10.5194/angeo-27-2475-2009}
}

@Article{angeo-27-2555-2009,
AUTHOR = {Arras, C. and Jacobi, C. and Wickert, J.},
TITLE = {Semidiurnal tidal signature in sporadic E occurrence rates derived from GPS radio occultation measurements at higher midlatitudes},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {6},
PAGES = {2555--2563},
URL = {https://angeo.copernicus.org/articles/27/2555/2009/},
DOI = {10.5194/angeo-27-2555-2009}
}

@Article{angeo-27-2575-2009,
AUTHOR = {Guo, L. and Lehmacher, G.},
TITLE = {First meteor radar observations of tidal oscillations over Jicamarca (11.95° S, 76.87° W)},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {6},
PAGES = {2575--2583},
URL = {https://angeo.copernicus.org/articles/27/2575/2009/},
DOI = {10.5194/angeo-27-2575-2009}
}

@Article{angeo-27-2643-2009,
AUTHOR = {H\"ausler, K. and L\"uhr, H.},
TITLE = {Nonmigrating tidal signals in the upper thermospheric zonal wind at equatorial latitudes as observed by CHAMP},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {7},
PAGES = {2643--2652},
URL = {https://angeo.copernicus.org/articles/27/2643/2009/},
DOI = {10.5194/angeo-27-2643-2009}
}

@Article{angeo-27-2675-2009,
AUTHOR = {Lehmacher, G. A. and Kudeki, E. and Akgiray, A. and Guo, L. and Reyes, P. and Chau, J.},
TITLE = {Radar cross sections for mesospheric echoes at Jicamarca},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {7},
PAGES = {2675--2684},
URL = {https://angeo.copernicus.org/articles/27/2675/2009/},
DOI = {10.5194/angeo-27-2675-2009}
}

@Article{angeo-27-2861-2009,
AUTHOR = {Anderson, D. and Araujo-Pradere, E. and Scherliess, L.},
TITLE = {Comparing daytime, equatorial E×B drift velocities and TOPEX/TEC observations associated with the 4-cell, non-migrating tidal structure},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {7},
PAGES = {2861--2867},
URL = {https://angeo.copernicus.org/articles/27/2861/2009/},
DOI = {10.5194/angeo-27-2861-2009}
}

@Article{angeo-27-2893-2009,
AUTHOR = {Bankov, L. and Heelis, R. and Parrot, M. and Berthelier, J.-J. and Marinov, P. and Vassileva, A.},
TITLE = {WN4 effect on longitudinal distribution of different ion species in the topside ionosphere at low  latitudes by means of DEMETER, DMSP-F13 and DMSP-F15 data},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {7},
PAGES = {2893--2902},
URL = {https://angeo.copernicus.org/articles/27/2893/2009/},
DOI = {10.5194/angeo-27-2893-2009}
}

@Article{angeo-27-2937-2009,
AUTHOR = {Hurd, L. and Larsen, M. F. and Liu, A. Z.},
TITLE = {Overturning instability in the mesosphere and lower thermosphere: analysis of instability conditions in lidar data},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {7},
PAGES = {2937--2945},
URL = {https://angeo.copernicus.org/articles/27/2937/2009/},
DOI = {10.5194/angeo-27-2937-2009}
}

@Article{angeo-27-2993-2009,
AUTHOR = {},
TITLE = {Preface 12th International Symposium on Equatorial Aeronomy (ISEA-12)},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {8},
PAGES = {2993--2996},
URL = {https://angeo.copernicus.org/articles/27/2993/2009/},
DOI = {10.5194/angeo-27-2993-2009}
}

@Article{angeo-27-3027-2009,
AUTHOR = {Kelley, M. C. and Dao, E.},
TITLE = {On the local time dependence of the penetration of solar wind-induced electric fields to the magnetic equator},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {8},
PAGES = {3027--3030},
URL = {https://angeo.copernicus.org/articles/27/3027/2009/},
DOI = {10.5194/angeo-27-3027-2009}
}

@Article{angeo-27-3133-2009,
AUTHOR = {Migoya-Oru\'e, Y. O. and Radicella, S. M. and Co\"{\i}sson, P.},
TITLE = {Low latitude ionospheric effects of major geomagnetic storms observed using TOPEX TEC data},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {8},
PAGES = {3133--3139},
URL = {https://angeo.copernicus.org/articles/27/3133/2009/},
DOI = {10.5194/angeo-27-3133-2009}
}

@Article{angeo-27-3213-2009,
AUTHOR = {Simkhada, D. B. and Snively, J. B. and Taylor, M. J. and Franke, S. J.},
TITLE = {Analysis and modeling of ducted and evanescent gravity waves observed in the Hawaiian airglow},
JOURNAL = {Annales Geophysicae},
VOLUME = {27},
YEAR = {2009},
NUMBER = {8},
PAGES = {3213--3224},
URL = {https://angeo.copernicus.org/articles/27/3213/2009/},
DOI = {10.5194/angeo-27-3213-2009}
}