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http://hdl.handle.net/2122/3503
DC Field | Value | Language |
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dc.contributor.authorall | Lastovicka, J.; Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
dc.contributor.authorall | Sauli, P.; Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
dc.contributor.authorall | Krizan, P.; Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
dc.date.accessioned | 2007-12-20T13:38:06Z | en |
dc.date.available | 2007-12-20T13:38:06Z | en |
dc.date.issued | 2006-12 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3503 | en |
dc.description.abstract | Planetary wave type oscillations have been observed in the lower and middle atmosphere but also in the ionosphere, including the ionospheric F2 layer. Here we deal with the oscillations in foF2 analysed for two Japanese and two US stations over a solar cycle (1979-1989) with the use of the Morlet and Paul wavelet transforms. Waves with periods near 5, 10 and 16 days are studied. Only events of duration of three wave-cycles and more are considered. The results are compared with the results of a similar analysis made for foF2 and the lower ionosphere over Europe (Lasˇtovicˇka et al., 2003a,b). The 5-day period wave events display a typical duration of 4 cycles, while the 10- and 16-day wave events are less persistent with typical duration of about 3.5 cycles and rather 3 cycles, respectively, in all three geographic regions. The persistence pattern in terms of number of cycles and in terms of number of days is different. In terms of number of cycles, the typical persistence of oscillations decreases with increasing period. On the other hand, in terms of number of days the typical persistence evidently increases with increasing period. The spectral distribution of event duration is too broad to allow for a reasonable prediction of event duration. Thus the predictability of the planetary wave type oscillations in foF2 seems to be very questionable. The longitudinal size of the planetary wave type events increases with increasing wave period. The persistence of the planetary wave type events in foF2 and the lower ionosphere is similar in Europe, but the similarity in occurrence of individual events in foF2 and the lower ionosphere is rather poor. | en |
dc.language.iso | English | en |
dc.relation.ispartofseries | 6/49 (2006) | en |
dc.subject | ionosphere | en |
dc.subject | atmosphere interaction | en |
dc.subject | mid-latitude ionosphere | en |
dc.subject | ionospheric disturbances | en |
dc.subject | atmospheric waves | en |
dc.title | Persistence of planetary wave type oscillations in the mid-latitude ionosphere | en |
dc.type | article | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.subject.INGV | 01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation | en |
dc.relation.references | ALTADILL, D. and E.M. APOSTOLOV (2001): Vertical propagating signatures of wave type oscillations (2 and 6.5 days) in the ionosphere obtained from electron density profiles, J. Atmos. Solar-Terr. Phys., 63, 823-834. ALTADILL, D. and E.M. APOSTOLOV (2003): Time and scale size of planetary wave signatures in the ionospheric Fregion. Role of the geomagnetic activity and mesosphere/ lower thermosphere winds, J. Geophys. Res., 108 (A11), 1403, doi: 10.129/2003JA010015. ALTADILL, D., E.M. APOSTOLOV, J. BOSˇKA, J. LASˇTOVICˇKA and P. SˇAULI (2004): Planetary and gravity wave signatures in the F-region ionosphere with impact on radio propagation predictions and variability, Ann. Geophysics, 47 (suppl. to n. 2/3), 1109-1119. BURESˇOVÁ, D. (1997): Results of foF2 data testing with the UNDIV program, Studia Geophys. Geod., 41, 82-87. CAVALIERI, D.J. (1976): Travelling planetary-scale waves in the E-region ionosphere, J. Atmos. Terr. Phys., 38, 965- 974. DAUBECHIES, I. (1994): Ten lectures on wavelets, CBMS, SIAM, 61, 117-119. FORBES, J.M. and X. ZHANG (1997): Quasi 2-day oscillation of the ionosphere: a statistical study, J. Atmos. Solar- Terr. Phys., 59, 1025-1034. FORBES, J.M., S. PALO and X. ZHANG (2000): Variability of the ionosphere, J. Atmos. Solar-Terr. Phys., 62, 685-693. HALDOUPIS, C., D. PANCHEVA and N.J. MITCHELL (2004): A study of tidal and planetary wave periodicities present in mid-latitude sporadic E layers, J. Geophys. Res., 109, A02302, doi: 10.1029/2003JA010253. KAZIMIROVSKY, E.S., M. HERRAIZ and B.A. DE LA MORENA (2003): Effects on the ionosphere due to phenomena occurring below it, Surv. Geophys., 24, 139-184. LASˇTOVICˇKA, J. (2006): Forcing of the ionosphere by waves from below, J. Atmos. Solar-Terr. Phys., 68, 479-497. LASˇTOVICˇKA, J. and P. SˇAULI (1999): Are planetary wave type oscillations in the F2 region caused by planetary wave modulation of upward propagating tides?, Adv. Space Res., 24, 1473-1476. LASˇTOVICˇKA, J., V. FISˇER and D. PANCHEVA (1994): Longterm trends in planetary wave activity (2-15 days) at 80-100 km inferred from radio wave absorption, J. Atmos. Terr. Phys., 56, 893-899. LASˇTOVICˇKA, J., P. KRIZˇAN and D. NOVOTNÁ (2003a): Persistence of planetary waves in the lower ionosphere, Studia Geophys. Geod., 47, 161-172. LASˇTOVICˇKA, J., P. KRIZˇAN, P. SˇAULI and D. NOVOTNÁ (2003b): Persistence of the planetary wave type oscillations in foF2 over Europe, Ann. Geophysicae, 21, 1543-1552. MALLAT, S. (1998): A Wavelet Tour of Signal Processing (Academic Press, San Diego), pp. 577. PANCHEVA, D., E. APOSTOLOV, J. LASˇTOVICˇKA and J. BOSˇKA (1989): Long-period fluctuations of meteorological origin observed in the lower ionosphere, J. Atmos. Terr. Phys., 51, 381-388. PANCHEVA, D., L.F. ALBERCA and B.A. DE LA MORENA (1994): Simultaneous observation of the quasi-two day variations in the lower and upper ionosphere, J. Atmos. Terr. Phys., 56, 43-50. RISHBETH, H. and M. MENDILLO (2001): Patterns of ionospheric variability, J. Atmos. Solar-Terr. Phys., 63, 1661-1680. TORRENCE, C. and G.P. COMPO (1998): A practical guide to wavelet analysis, Bull. Amer. Met. Soc., 79 (1), 61-78. VIDAKOVIC, B. (1999): Statistical Modelling by Wavelets (A Wiley-Interscience Publication, John Wiley & Sons), pp. 408. | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Lastovicka, J. | en |
dc.contributor.author | Sauli, P. | en |
dc.contributor.author | Krizan, P. | en |
dc.contributor.department | Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
dc.contributor.department | Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
dc.contributor.department | Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Institute of Atmospheric Physics, Prague, Czech Repubilc | - |
crisitem.author.dept | Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | - |
crisitem.author.dept | Institute of Atmospheric Physics, Academy of Sciences of Czech Republic, Prague, Czech Republic | - |
crisitem.classification.parent | 01. Atmosphere | - |
Appears in Collections: | Annals of Geophysics |
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