FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1996646054> ?p ?o ?g. }

• W1996646054 endingPage "839" @default.
• W1996646054 startingPage "828" @default.
• W1996646054 abstract "Investigations on the dynamical structure of Venus upper atmosphere were carried out by infrared heterodyne Doppler wind measurements shortly before and after the venusian inferior conjunction on March 27, 2009. The Cologne Tuneable Heterodyne Infrared Spectrometer (THIS) has been installed at the McMath–Pierce Solar Telescope on Kitt Peak, Arizona, USA to detect non-local thermodynamical equilibrium (non-LTE) emission lines of CO2 at a wavelength of 10.5 μm. These solar induced emission lines originate at a pressure level of 1 μbar corresponding to an altitude level of 110 ± 10 km. From the frequency position of the spectral lines we directly derived Doppler winds without any additional information. The high spatial resolution with a field-of-view of 1.6 arcsec compared to an apparent diameter of Venus of 57 arcsec allowed to collect information at different latitudes of the illuminated planet. Line of sight wind velocities between 189 ± 11 m/s and 41 ± 14 m/s were detected along the illuminated evening (western) limb in March and along the bright morning (eastern) limb in April. Single observations at the evening and morning terminator do not show a systematic difference of wind velocities. The measured wind is uniform at low and mid latitudes. In March a lower mean value of 134 ± 1 m/s was found compared to April where we retrieved a value of 141 ± 1 m/s. Poleward of a latitude of 50° we observed a strong decrease in wind speed down to 41 ± 14 m/s. In addition to the pure line of sight wind velocities we used the observing geometry for additional interpretations regarding a global flow from the subsolar point to the antisolar point (SS–AS flow) and a global retrograde superrotational zonal wind (RSZ). The estimations indicate a dominating SS–AS flow with a maximum wind velocity at the terminator of 138 ± 1 m/s at low and mid latitudes. No indication of a global RSZ component was found. Corresponding wind values for the latter yield wind velocities in the zonal direction between+20 m/s (retrograde direction) and −20 m/s (prograde direction) at different latitudes. An inversion of the wind direction is in disagreement with a global RSZ behavior. The comprehensive dataset was used to investigate short term wind variabilities and changes up to 58 m/s within few days were found. We included a detailed comparison of concurrent single position observations with sub-millimeter measurements (Clancy, R.T., Sandor, B.J., Moriarty-Schieven, G. [2012]. Icarus 217, 794–812) suggesting a cross terminator gradient at certain latitudes. A detailed interpretation of the observed time dependent behavior by global circulation models including wave activities will be addressed in future work." @default.
• W1996646054 created "2016-06-24" @default.
• W1996646054 creator A5003550309 @default.
• W1996646054 creator A5047098730 @default.
• W1996646054 creator A5054752442 @default.
• W1996646054 creator A5060731521 @default.
• W1996646054 creator A5086560746 @default.
• W1996646054 creator A5087036015 @default.
• W1996646054 date "2013-07-01" @default.
• W1996646054 modified "2023-09-23" @default.
• W1996646054 title "Venus’ upper atmospheric dynamical structure from ground-based observations shortly before and after Venus’ inferior conjunction 2009" @default.
• W1996646054 cites W1616436037 @default.
• W1996646054 cites W1974718324 @default.
• W1996646054 cites W1977777534 @default.
• W1996646054 cites W1981514999 @default.
• W1996646054 cites W1988556748 @default.
• W1996646054 cites W1994657423 @default.
• W1996646054 cites W1998801122 @default.
• W1996646054 cites W1999314180 @default.
• W1996646054 cites W2002008309 @default.
• W1996646054 cites W2002267214 @default.
• W1996646054 cites W2003486965 @default.
• W1996646054 cites W2004636030 @default.
• W1996646054 cites W2009462659 @default.
• W1996646054 cites W2012054031 @default.
• W1996646054 cites W2013503982 @default.
• W1996646054 cites W2017006884 @default.
• W1996646054 cites W2021863376 @default.
• W1996646054 cites W2022058171 @default.
• W1996646054 cites W2030101408 @default.
• W1996646054 cites W2034036462 @default.
• W1996646054 cites W2035395643 @default.
• W1996646054 cites W2042332267 @default.
• W1996646054 cites W2045143022 @default.
• W1996646054 cites W2048329711 @default.
• W1996646054 cites W2051230074 @default.
• W1996646054 cites W2054060046 @default.
• W1996646054 cites W2054901614 @default.
• W1996646054 cites W2059963071 @default.
• W1996646054 cites W2072947461 @default.
• W1996646054 cites W2074783795 @default.
• W1996646054 cites W2078417705 @default.
• W1996646054 cites W2090208935 @default.
• W1996646054 cites W2102701130 @default.
• W1996646054 cites W2148363844 @default.
• W1996646054 cites W2162973744 @default.
• W1996646054 cites W2163377944 @default.
• W1996646054 cites W3106407588 @default.
• W1996646054 cites W4205182410 @default.
• W1996646054 doi "https://doi.org/10.1016/j.icarus.2012.12.005" @default.
• W1996646054 hasPublicationYear "2013" @default.
• W1996646054 type Work @default.
• W1996646054 sameAs 1996646054 @default.
• W1996646054 citedByCount "12" @default.
• W1996646054 countsByYear W19966460542013 @default.
• W1996646054 countsByYear W19966460542014 @default.
• W1996646054 countsByYear W19966460542015 @default.
• W1996646054 countsByYear W19966460542016 @default.
• W1996646054 countsByYear W19966460542018 @default.
• W1996646054 countsByYear W19966460542020 @default.
• W1996646054 countsByYear W19966460542021 @default.
• W1996646054 countsByYear W19966460542023 @default.
• W1996646054 crossrefType "journal-article" @default.
• W1996646054 hasAuthorship W1996646054A5003550309 @default.
• W1996646054 hasAuthorship W1996646054A5047098730 @default.
• W1996646054 hasAuthorship W1996646054A5054752442 @default.
• W1996646054 hasAuthorship W1996646054A5060731521 @default.
• W1996646054 hasAuthorship W1996646054A5086560746 @default.
• W1996646054 hasAuthorship W1996646054A5087036015 @default.
• W1996646054 hasConcept C121332964 @default.
• W1996646054 hasConcept C122523270 @default.
• W1996646054 hasConcept C127313418 @default.
• W1996646054 hasConcept C1276947 @default.
• W1996646054 hasConcept C153294291 @default.
• W1996646054 hasConcept C2779900269 @default.
• W1996646054 hasConcept C65440619 @default.
• W1996646054 hasConcept C87355193 @default.
• W1996646054 hasConcept C91586092 @default.
• W1996646054 hasConcept C94490329 @default.
• W1996646054 hasConceptScore W1996646054C121332964 @default.
• W1996646054 hasConceptScore W1996646054C122523270 @default.
• W1996646054 hasConceptScore W1996646054C127313418 @default.
• W1996646054 hasConceptScore W1996646054C1276947 @default.
• W1996646054 hasConceptScore W1996646054C153294291 @default.
• W1996646054 hasConceptScore W1996646054C2779900269 @default.
• W1996646054 hasConceptScore W1996646054C65440619 @default.
• W1996646054 hasConceptScore W1996646054C87355193 @default.
• W1996646054 hasConceptScore W1996646054C91586092 @default.
• W1996646054 hasConceptScore W1996646054C94490329 @default.
• W1996646054 hasIssue "1" @default.
• W1996646054 hasLocation W19966460541 @default.
• W1996646054 hasOpenAccess W1996646054 @default.
• W1996646054 hasPrimaryLocation W19966460541 @default.
• W1996646054 hasRelatedWork W1968378404 @default.
• W1996646054 hasRelatedWork W2004034972 @default.
• W1996646054 hasRelatedWork W2004290542 @default.
• W1996646054 hasRelatedWork W2065357901 @default.
• W1996646054 hasRelatedWork W2073371086 @default.

• next