EMPIRICAL-MODEL;
GLOBAL SURVEYOR;
ATMOSPHERE;
VENUS;
IONOSPHERE;
D O I:
10.1002/2014JA020698
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
The Mars Express Radio Science (MaRS) experiment on board Mars Express has been providing radio-occultation data since early 2004. The analysis method currently used to retrieve neutral atmosphere and ionosphere profiles is based on the resolution of a complex inverse problem. The solution to such a problem is obtained under strong assumptions on the atmosphere and the ionosphere and with some limitations. Here we developed a novel method for radio-occultation data analysis based on a direct approach which overcomes some of the difficulties related to the standard inversion. This new method is based on a numerical model of the atmosphere and the ionosphere of Mars computing the propagation of the radio waves from the spacecraft to the receiver on Earth. The main interest of such an approach lies in the intrinsic and coherent coupling between the neutral part and the ionized part of the planetary environment, which gives physical constrains on the retrieved profiles. We have applied this new method to radio occultation experiments performed by MaRS, and we present the results obtained in two different occultation configurations. We discuss the differences which emerge from the standard analysis and the gain that such a method can give to the analysis of planetary environments.
机构:
Univ Oulu, Sodankyla Geophys Observ, Sodankyla, Finland
Univ Toulouse, Toulouse, France
UPS OMP, Toulouse, France
IRAP, Toulouse, FranceUniv Oulu, Sodankyla Geophys Observ, Sodankyla, Finland
Grandin, M.
Blelly, P. -L.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Toulouse, Toulouse, France
UPS OMP, Toulouse, France
IRAP, Toulouse, France
CNRS, Toulouse, France
IRAP, Toulouse, FranceUniv Oulu, Sodankyla Geophys Observ, Sodankyla, Finland
Blelly, P. -L.
Witasse, O.
论文数: 0引用数: 0
h-index: 0
机构:
Estec, European Space Agcy, Sci Support Off, Noordwijk, NetherlandsUniv Oulu, Sodankyla Geophys Observ, Sodankyla, Finland
Witasse, O.
Marchaudon, A.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Toulouse, Toulouse, France
UPS OMP, Toulouse, France
IRAP, Toulouse, France
CNRS, Toulouse, France
IRAP, Toulouse, FranceUniv Oulu, Sodankyla Geophys Observ, Sodankyla, Finland
机构:
Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
UCM CSIC, Inst Geociencias, Madrid 28040, SpainUniv Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
Sanchez-Cano, B.
Witasse, O.
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h-index: 0
机构:
European Space Agcy, ESTEC Res & Sci Support Dept, NL-2200 AG Noordwijk, NetherlandsUniv Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
Witasse, O.
Herraiz, M.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
UCM CSIC, Inst Geociencias, Madrid 28040, SpainUniv Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
Herraiz, M.
Radicella, S. M.
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h-index: 0
机构:
Abdus Salam Int Ctr Theoret Phys ICTP, Telecommun ICT Dev Lab, I-34151 Trieste, ItalyUniv Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
Radicella, S. M.
Bauer, J.
论文数: 0引用数: 0
h-index: 0
机构:
European Space Agcy, ESTEC Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands
European Space Agcy, ESOC, D-64293 Darmstadt, GermanyUniv Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra Astron & Astrofis 1, E-28040 Madrid, Spain
机构:
Estec, ESA, NL-2201 AZ Noordwijk, Netherlands
Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, GermanyEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Piccialli, A.
Tellmann, S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Cologne, Inst Geophys & Meteorol, D-50923 Cologne, GermanyEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Tellmann, S.
Titov, D. V.
论文数: 0引用数: 0
h-index: 0
机构:
Estec, ESA, NL-2201 AZ Noordwijk, Netherlands
Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, GermanyEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Titov, D. V.
Limaye, S. S.
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h-index: 0
机构:
Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI 53715 USAEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Limaye, S. S.
Khatuntsev, I. V.
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h-index: 0
机构:
Russian Acad Sci, Space Res Inst, Moscow 117997, RussiaEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Khatuntsev, I. V.
Paetzold, M.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Cologne, Inst Geophys & Meteorol, D-50923 Cologne, GermanyEstec, ESA, NL-2201 AZ Noordwijk, Netherlands
Paetzold, M.
Haeusler, B.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Bundeswehr Munchen, Inst Raumfahrttech, D-85577 Neubiberg, GermanyEstec, ESA, NL-2201 AZ Noordwijk, Netherlands