Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Hayden S. Porter"'
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3421-3435 (2004)
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2004, 22 (10), pp.3421-3435
Annales Geophysicae, Vol 22, Iss 10, Pp 3421-3435 (2004)
Scopus-Elsevier
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2004, 22 (10), pp.3421-3435
Annales Geophysicae, Vol 22, Iss 10, Pp 3421-3435 (2004)
Scopus-Elsevier
At high latitudes in the upper mesosphere, horizontal wind oscillations have been observed with periods around 10h. Waves with such a period are generated in our Numerical Spectral Model (NSM), and they are identified as planetary-scale inertio gravi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8bc307971f2d149be1f5edb57add781
https://www.ann-geophys.net/22/3421/2004/
https://www.ann-geophys.net/22/3421/2004/
Publikováno v:
Annales Geophysicae, Vol 25, Pp 1071-1092 (2007)
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2007, 25 (5), pp.1071-1092
Annales Geophysicae, Vol 25, Iss 5, Pp 1071-1092 (2007)
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2007, 25 (5), pp.1071-1092
Annales Geophysicae, Vol 25, Iss 5, Pp 1071-1092 (2007)
In several papers, the solar cycle (SC) effect in the lower atmosphere has been linked observationally to the Quasi-biennial Oscillation (QBO) of the zonal circulation. Salby and Callaghan (2000) in particular analyzed the QBO wind measurements, cove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::679ba1cde98bb8079ab8f20e1b67208a
https://www.ann-geophys.net/25/1071/2007/angeo-25-1071-2007.pdf
https://www.ann-geophys.net/25/1071/2007/angeo-25-1071-2007.pdf
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 67:959-980
In light of the measurements from the TIMED spacecraft and coordinated ground-based observations, we discuss results from a modeling study with our Numerical Spectral Model (NSM), which specifically deals with the non-migrating tides generated in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3618cb50ab16ffd8eb1a73e796cb7d20
https://doi.org/10.1016/j.jastp.2005.03.002
https://doi.org/10.1016/j.jastp.2005.03.002
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 67:981-991
We demonstrated that, in our model, non-linear interactions between planetary waves (PW) and migrating tides could generate in the upper mesosphere non-migrating tides with amplitudes comparable to those observed. The Numerical Spectral Model (NSM) w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5105a67db97d9a335ffa6b7cb2f4209
https://doi.org/10.1016/j.jastp.2005.03.003
https://doi.org/10.1016/j.jastp.2005.03.003
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 65:887-899
Quasi-decadal oscillations (QDO) have been observed in the stratosphere and have been linked to the quasi-biennial oscillation (QBO) in the zonal circulation and to the 11-year solar activity cycle. With the use of a 2D version of our numerical spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f43be8370cc8cb9a73596927fb5314b2
https://doi.org/10.1016/s1364-6826(03)00110-x
https://doi.org/10.1016/s1364-6826(03)00110-x
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 65:901-916
Solar cycle activity e.ects (SCAE) in the lower and middle atmosphere, reported in several studies, are di;cult to explain on the basis of the small changes in solar radiation that accompany the 11-year cycle. It is therefore natural to speculate tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab3b86577ca654c07d0cd4e44a8ce4b
https://doi.org/10.1016/s1364-6826(03)00111-1
https://doi.org/10.1016/s1364-6826(03)00111-1
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 63:1851-1864
We present results from a non-linear, 3D, time dependent numerical spectral model, which extends from the ground up to the thermosphere and incorporates Hines’ Doppler spread parameterization for small-scale gravity waves (GWs). Our focal point is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5035f5752965b606a194839885d0cf3f
https://doi.org/10.1016/s1364-6826(01)00056-6
https://doi.org/10.1016/s1364-6826(01)00056-6
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 62:1135-1154
We present an extension for the 2D (zonal mean) version of our Numerical Spectral Mode (NSM) that incorporates Hines' Doppler spread parameterization (DSP) for small scale gravity waves (GW). This model is applied to describe the seasonal variations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba67ab717342bdc7def930776429fa8f
https://doi.org/10.1016/s1364-6826(00)00103-6
https://doi.org/10.1016/s1364-6826(00)00103-6
Publikováno v:
Journal of Geophysical Research: Planets. 104:16541-16565
We have investigated the chemistry of the Jovian auroral thermosphere-/ionosphere by modeling the precipitation of high-energy electrons into the auroral zones using a multistream electron-transport code and three model thermospheres: a standard mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::838d5a770dfbf1298a9b1b39ea124936
https://doi.org/10.1029/1999je900022
https://doi.org/10.1029/1999je900022
Publikováno v:
Advances in Space Research. 24:1531-1540
We present a numerical spectral model (NSM) that describes the equatorial oscillations in the zonal circulation, the Quasi-biennial Oscillations (QBO) and Semi-annual Oscillations (SAO). The oscillations are generated by the momentum deposition of sm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3631e2c698662e46638f137146ade743
https://doi.org/10.1016/s0273-1177(99)00876-5
https://doi.org/10.1016/s0273-1177(99)00876-5