Thermal structure of Venus nightside upper atmosphere measured by stellar occultations with SPICAV/Venus Express

被引：40
作者：
Piccialli, A. [1 ,2 ]
Montmessin, F. [1 ]
Belyaev, D. [3 ,4 ]
Mahieux, A. [5 ,6 ,7 ]
Fedorova, A. [3 ,4 ]
Marcq, E. [1 ]
Bertaux, J. -L. [1 ]
Tellmann, S. [8 ]
Vandaele, A. C. [5 ]
Korablev, O. [3 ,4 ]
机构：
[1] CNRS, LATMOS, UVSQ, IPSL, F-78280 Guyancourt, France
[2] Univ Paris Diderot, Observ Paris, LESIA, CNRS,UPMC, F-92195 Meudon, France
[3] Space Res Inst IKI, Moscow 117810, Russia
[4] MIPT, Dolgoprudnyi 141700, Russia
[5] Belgian Inst Space Aeron, Planetary Aeron, B-1180 Brussels, Belgium
[6] Fonds Natl Rech Sci, B-1000 Brussels, Belgium
[7] Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA
[8] Univ Cologne, Rhein Inst Umweltforsch, Abt Planetenforsch, D-50931 Cologne, Germany
来源：
PLANETARY AND SPACE SCIENCE | 2015年 / 113卷
关键词：
Venus; Atmosphere; Atmospheres; Structure; Occultations; Spectroscopy; VERTICAL STRUCTURE; MESOSPHERE; THERMOSPHERE; TEMPERATURE; VERA; CO; CIRCULATION; MODEL; LAYER; WAVES;
D O I：
10.1016/j.pss.2014.12.009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The thermal structure of Venus upper atmosphere (90-140 km) was investigated using stellar occultation measurements acquired by the SPICAV experiment on board Venus Express. The SPICAV ultraviolet channel provides CO2 local density and temperature vertical profiles with a vertical resolution of <7 km of both the southern and the northern hemispheres on the nightside (18:00-06:00 h local time). A permanent layer of warm air is observed at the mesopause in the altitude range 90-100 km. Temperature then decreases with increasing altitude reaching a minimum value around 125 km. Spatial and temporal changes in the thermal structure have been analyzed. Local time variations dominate the structure of Venus atmosphere at these altitudes: temperatures show an increase of similar to 20 K on the morning side compared to the evening side. The homopause altitude was also determined; it varies between 119 and 138 km of altitude, increasing from the evening side to the morning side. SPICAV temperature profiles were compared to several literature results from ground-based observations, previous spacecraft missions and the Venus Express mission. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：321 / 335
页数：15
相关论文
共 51 条
  • [41] Thermospheric/mesospheric temperatures on Venus: Results from ground-based high-resolution spectroscopy of CO2 in 1990/1991 and comparison to results from 2009 and between other techniques
    Sonnabend, Guido
    Kroetz, Peter
    Schmuelling, Frank
    Kostiuk, Theodor
    Goldstein, Jeff
    Sornig, Manuela
    Stupar, Dusan
    Livengood, Timothy
    Hewagama, Tilak
    Fast, Kelly
    Mahieux, Arnaud
    [J]. ICARUS, 2012, 217 (02) : 856 - 862
  • [42] Venus express -: The first European mission to Venus
    Svedhem, H.
    Titov, D. V.
    McCoy, D.
    Lebreton, J.-P.
    Barabash, S.
    Bertaux, J.-L.
    Drossart, P.
    Formisano, V.
    Haeusler, B.
    Korablev, O.
    Markiewicz, W. J.
    Nevejans, D.
    Paetzold, M.
    Piccioni, G.
    Zhang, T. L.
    Taylor, F. W.
    Lellouch, E.
    Koschny, D.
    Witasse, O.
    Eggel, H.
    Warhaut, M.
    Accomazzo, A.
    Rodriguez-Canabal, J.
    Fabrega, J.
    Schirmann, T.
    Clochet, A.
    Coradini, M.
    [J]. PLANETARY AND SPACE SCIENCE, 2007, 55 (12) : 1636 - 1652
  • [43] Venus Express mission
    Svedhem, H.
    Titov, D.
    Taylor, F.
    Witasse, O.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2009, 114 : E00B33
  • [44] Structure and meteorology of the middle atmosphere of Venus: Infrared remote sensing from the Pioneer Orbiter
    Taylor, F. W.
    Beer, R.
    Chahine, M. T.
    Diner, D. J.
    Elson, L. S.
    Haskins, R. D.
    MCcleese, D. J.
    Martonchik, J. V.
    Reichley, P. E.
    Farmer, C. B.
    Froidevaux, L.
    Leung, J.
    Coffey, M. T.
    Gille, J. C.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1980, 85 (A13) : 7963 - 8006
  • [45] Small-scale temperature fluctuations seen by the VeRa Radio Science Experiment on Venus Express
    Tellmann, S.
    Haeusler, B.
    Hinson, D. P.
    Tyler, G. L.
    Andert, T. P.
    Bird, M. K.
    Imamura, T.
    Paetzold, M.
    Remus, S.
    [J]. ICARUS, 2012, 221 (02) : 471 - 480
  • [46] Structure of the Venus neutral atmosphere as observed by the Radio Science experiment VeRa on Venus Express
    Tellmann, Silvia
    Paetzold, Martin
    Haeusler, Bernd
    Bird, Michael K.
    Tyler, G. Leonard
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2009, 114
  • [47] Venus express: Highlights of the nominal mission
    Titov, D. V.
    Svedhem, H.
    Taylor, F. W.
    Barabash, S.
    Bertaux, J. -L.
    Drossart, P.
    Formisano, V.
    Haeusler, B.
    Korablev, O.
    Markiewicz, W. J.
    Nevejans, D.
    Paetzold, M.
    Piccioni, G.
    Sauvaud, J. -A.
    Zhang, T. L.
    Witasse, O.
    Gerard, J. -C.
    Fedorov, A.
    Sanchez-Lavega, A.
    Helbert, J.
    Hoofs, R.
    [J]. SOLAR SYSTEM RESEARCH, 2009, 43 (03) : 185 - 209
  • [48] The upper atmosphere of Venus during morning conditions
    von Zahn, U.
    Fricke, K. H.
    Hunten, D. M.
    Krankowsky, D.
    Mauersberger, K.
    Nier, A. O.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1980, 85 (A13) : 7829 - 7840
  • [49] Preliminary characterization of the upper haze by SPICAV/SOIR solar occultation in UV to mid-IR onboard Venus Express
    Wilquet, V.
    Fedorova, A.
    Montmessin, F.
    Drummond, R.
    Mahieux, A.
    Vandaele, A. C.
    Villard, E.
    Korablev, O.
    Bertaux, J. -L.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2009, 114
  • [50] Structure of the Venus atmosphere
    Zasova, L. V.
    Ignatiev, N.
    Khatuntsev, I.
    Linkin, V.
    [J]. PLANETARY AND SPACE SCIENCE, 2007, 55 (12) : 1712 - 1728
123456