Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Thermosphäre"'
Autor:
Jacobi, Ch., Karami, K.
We analyse 43 years of mesosphere/lower thermosphere (MLT) horizontal winds obtained from a joint analysis of low frequency (LF) spaced receiver lower ionospheric drift measurements from 1979 through 2006 and very high frequency (VHF) meteor radar wi
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A88540
https://ul.qucosa.de/api/qucosa%3A88540/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A88540/attachment/ATT-0/
Autor:
Lange, Martin, Jacobi, Christoph
Publikováno v:
Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 22 = Meteorologische Arbeiten aus Leipzig ; 6 (2001). 6:111-120
Langzeitmessungen des Windfeldes in der Mesopausenregion (~ 92km) an verschiedenen Stationen in den mittleren Breiten der Nordhemisphäre zeigen systematische zonale Variationen beim (zeitlich) gemittelten Zonal- und Meridionalwind und bei den Amplit
Externí odkaz:
http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-216894
http://www.qucosa.de/fileadmin/data/qucosa/documents/21689/Seite111-120.pdf
http://www.qucosa.de/fileadmin/data/qucosa/documents/21689/Seite111-120.pdf
Publikováno v:
Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 17 = Meteorologische Arbeiten aus Leipzig ; 5 (2000). 5:95-112
Ein neues C02-Parametrisierungsschema, das variable CO2-Konzentrationen im gesamten Höhenbereich von 15 - 150 km zuläßt, wurde in das Kölner Zirkulationsmodell der mittleren Atmosphäre (COMMA) implementiert und der Einfluß einer C02-Erhöhung i
Externí odkaz:
http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-215475
http://www.qucosa.de/fileadmin/data/qucosa/documents/21547/Seite95-112.pdf
http://www.qucosa.de/fileadmin/data/qucosa/documents/21547/Seite95-112.pdf
Autor:
Schminder, Rudolf
Publikováno v:
Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 1 = Meteorologische Arbeiten aus Leipzig ; 1 (1995). 1:1-21
Am Geophysikalischen Observatorium Collm, das 1932 als experimentelle Basis des Geophysikalischen Institutes der Universität Leipzig für meteorologische, seismologische und geomagnetische Messungen von Professor LUDWIG WEICKMANN errichtet worden wa
Externí odkaz:
http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-212298
http://www.qucosa.de/fileadmin/data/qucosa/documents/21229/Seite1-21.pdf
http://www.qucosa.de/fileadmin/data/qucosa/documents/21229/Seite1-21.pdf
Mesosphere/lower thermosphere (MLT) zonal winds measured by a VHF meteor radar at Collm, Germany (51.3°N, 13.0°E) during late winter 2015/2016 show very strong westerly winds above about 90 km, but not below that height. This anomaly appears during
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16747
https://ul.qucosa.de/api/qucosa%3A16747/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16747/attachment/ATT-0/
While the diurnal, semidiurnal and terdiurnal tides in the mesosphere / lower thermosphere (MLT) have been observed from the ground and from satellites, the quarterdiurnal tide (QDT), with a period of 6 hours, has been investigated on a few occasions
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16704
https://ul.qucosa.de/api/qucosa%3A16704/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16704/attachment/ATT-0/
A mechanistic global circulation model is used to simulate the mesospheric and lower thermospheric circulation during austral winter. The model includes a gravity wave (GW) parameterization that is initiated by prescribed GW parameters in the troposp
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16703
https://ul.qucosa.de/api/qucosa%3A16703/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16703/attachment/ATT-0/
Autor:
Sedlak, Rene, Hannawald, Patrick, Schmidt, Carsten, Wüst, Sabine, Bittner, Michael, Stanic, Samo
We analysed 286 nights of data from the OH* airglow imager FAIM 3 (Fast Airglow IMager) acquired at Otlica Observatory (45.93∘ N, 13.91∘ E), Slovenia, between 26 October 2017 and 6 June 2019. Measurements have been performed with a spatial resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::89856fff9a2fff7f27c804b09430093c
https://amt.copernicus.org/articles/14/6821/2021/
https://amt.copernicus.org/articles/14/6821/2021/
Autor:
Jacobi, Christoph, Ern, Manfred
Gravity wave amplitudes and momentum fluxes derived from SABER temperature measurements are analysed together with Collm meteor radar zonal winds. The momentum flux (MF) divergence derived from the SABER temperatures shows a maximum that is found at
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16408
https://ul.qucosa.de/api/qucosa%3A16408/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16408/attachment/ATT-0/
The possibility of using terrestrial television (TV) broadcast signals (TVBS) as sounding signals for mesosphere-lower thermosphere (MLT) wind measurements by the radio meteor method is investigated. Such approach allows to use external TV transmitte
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16406
https://ul.qucosa.de/api/qucosa%3A16406/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16406/attachment/ATT-0/