dot
Detailansicht
Katalogkarte GBA
Katalogkarte ISBD
Suche präzisieren
Drucken
Download RIS
Hier klicken, um den Treffer aus der Auswahl zu entfernen
Titel Ionospheric measurements during the CRISTA/MAHRSI campaign: their implications and comparison with previous campaigns
VerfasserIn J. Laštovička, D. Pancheva, D. Altadill, E. A. Benediktov, J. Boška, J. Bremer, M. Dick, K. Igarashi, P. Mlch, B. A. Morena, Z. T. Rapoport, V. A. Vyakhirev, B. O. Vugmeister, X. Zhang, B. Zolesi
Medientyp Artikel
Sprache Englisch
ISSN 0992-7689
Digitales Dokument URL
Erschienen In: Annales Geophysicae ; 17, no. 8 ; Nr. 17, no. 8, S.1040-1052
Datensatznummer 250013798
Publikation (Nr.) Volltext-Dokument vorhandencopernicus.org/angeo-17-1040-1999.pdf
 
Zusammenfassung
The CRISTA/MAHRSI experiment on board a space shuttle was accompanied by a broad campaign of rocket, balloon and ground-based measurements. Supporting lower ionospheric ground-based measurements were run in Europe and Eastern Asia between 1 October-30 November, 1994. Results of comparisons with long ionospheric data series together with short-term comparisons inside the interval October-November, 1994, showed that the upper middle atmosphere 
(h = 80-100 km) at middle latitudes of the Northern Hemisphere in the interval of the CRISTA/MAHRSI experiment (4-12 November, 1994) was very close to its expected climatological state. In other words, the average results of the experiment can be used as climatological data, at least for the given area/altitudes. The role of solar/geomagnetic and "meteorological" control of the lower ionosphere is investigated and compared with the results of MAP/WINE, MAC/SINE and DYANA campaigns. The effects of both solar/geomagnetic and global meteorological factors on the lower ionosphere are found to be weak during autumn 1994 compared to those in MAP/WINE and DYANA winters, and they are even slightly weaker than those in MAP/SINE summer. The comparison of the four campaigns suggests the following overall pattern: in winter the lower ionosphere at northern middle latitudes appears to be fairly well "meteorologically" controlled with a very weak solar influence. In summer, solar influence is somewhat stronger and dominates the weak "meteorological" influence, but the overall solar/meteorological control is weaker than in winter. In autumn we find the weakest overall solar/meteorological control, local effects evidently dominate.

Key words. Ionosphere (ionosphere · atmosphere interactions; mid-latitude ionosphere)
 
Teil von