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Spatio-Temporal Lev...
Spatio-Temporal Level Variations of the Martian Seasonal North Polar Cap From Co-Registration of MOLA Profiles
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- Xiao, Haifeng (författare)
- Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, Berlin, Germany
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- Stark, Alexander (författare)
- Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
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- Schmidt, Frédéric (författare)
- Université Paris-Saclay, CNRS, GEOPS, Orsay, France; Institut Universitaire de France (IUF), Paris, France
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- Hao, Jingyan, Postdoktor (författare)
- Luleå tekniska universitet,Rymdteknik,Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, Kyoto, Japan
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- Steinbrügge, Gregor (författare)
- Department of Geophysics, Stanford University, Stanford, CA, USA
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- Wagner, Nicholas L. (författare)
- Department of Geosciences, Baylor University, Waco, TX, USA
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- Su, Shu (författare)
- Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, Berlin, Germany
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- Cheng, Yuan (författare)
- College of Surveying and Geo-Informatics, Tongji University, Shanghai, China
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- Oberst, Jürgen (författare)
- Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, Berlin, Germany
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(creator_code:org_t)
- John Wiley & Sons, 2022
- 2022
- Engelska.
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Ingår i: Journal of Geophysical Research - Planets. - : John Wiley & Sons. - 2169-9097 .- 2169-9100. ; 127:10
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The seasonal deposition and sublimation of CO2 constitute a major element in Martian volatile cycles. We reprocess the Mars Orbiter Laser Altimeter (MOLA) data and apply co-registration procedures to obtain spatio-temporal variations in levels of the Seasonal North Polar Cap (SNPC). The maximum level over the Residual North Polar Cap (RNPC) is 1.3 m, approximately half of that at the south pole (2.5 m). However, the maximum level in the dune fields at Olympia Undae can be up to 3.8 m. Furthermore, off-season decreases up to 3 m during the northern winter at Olympia Undae are observed. These are likely due to metamorphism effects accentuated by the reduced snowfall at this period. Meanwhile, off-season increases of up to 2 m during the northern spring are noted, the cause of which remains to be explored. The volume of the SNPC peaks at the end of northern winter and is estimated to be approximately 9.6 × 1012 m3, which is 2% more than that of the Seasonal South Polar Cap. The bulk density of the SNPC can go through phased decreases in accordance with phased accumulation at northern high-latitudes. These findings can put important constraints on the Martian volatile cycling models.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- Mars
- seasonal polar cap
- CO2 ice
- MOLA
- level variation
- pseudo cross-over
- Atmospheric science
- Atmosfärsvetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Xiao, Haifeng
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Stark, Alexander
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Schmidt, Frédéri ...
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Hao, Jingyan, Po ...
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Steinbrügge, Gre ...
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Wagner, Nicholas ...
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visa fler...
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Su, Shu
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Cheng, Yuan
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Oberst, Jürgen
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