Preliminary interpretation of the REMS pressure data from the first 100 sols of the MSL mission

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Preliminary interpretation of the REMS pressure data from the first 100 sols of the MSL mission

Haberle, R. M. (author): NASA Ames Research Center

Gõmez-Elvira, J. (author): Centro de Astrobiologia, INTA-CSIC, Madrid

Juárez, M. De La Torre (author): Jet Propulsion Laboratory, California Institute of Technology, Pasadena

Harri, A. M. (author): Finnish Meteorological Institute

Hollingsworth, J. L. (author): NASA Ames Research Center

Kahanpää, H. (author): Finnish Meteorological Institute

Kahre, M. A. (author): NASA Ames Research Center

Lemmon, M. (author): Department of Atmospheric Sciences, Texas A&M University, College Station, Texas

Mischna, M. (author): Jet Propulsion Laboratory, California Institute of Technology, Pasadena

Martin-Torres, Javier (author): Centro de Astrobiologia, Madrid

Moores, J. E. (author): Department of Earth and Space Science and Engineering, York University

Newman, C. (author): Ashima Research, Pasadena

Rafkin, S. C R (author): Southwest Research Institute, San Antonio, Texas

Rennõ, N. (author): Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor

Richardson, M. I. (author): Ashima Research, Pasadena

Rodríguez-Manfredi, J. A. (author): Centro de Astrobiologia, INTA-CSIC, Madrid

Vasavada, A. R. (author): Jet Propulsion Laboratory, California Institute of Technology, Pasadena

Zorzano-Mier, M. P. (author): Centro de Astrobiologia, INTA-CSIC, Madrid

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(creator_code:org_t)

John Wiley & Sons, 2014
2014
English.
In: Journal of Geophysical Research - Planets. - : John Wiley & Sons. - 2169-9097 .- 2169-9100. ; 119:3, s. 440-453

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

We provide a preliminary interpretation of the Rover Environmental Monitoring Station (REMS) pressure data from the first 100 Martian solar days (sols) of the Mars Science Laboratory mission. The pressure sensor is performing well and has revealed the existence of phenomena undetected by previous missions that include possible gravity waves excited by evening downslope flows, relatively dust-free convective vortices analogous in structure to dust devils, and signatures indicative of the circulation induced by Gale Crater and its central mound. Other more familiar phenomena are also present including the thermal tides, generated by daily insolation variations, and the CO2 cycle, driven by the condensation and sublimation of CO2 in the polar regions. The amplitude of the thermal tides is several times larger than those seen by other landers primarily because Curiosity is located where eastward and westward tidal modes constructively interfere and also because the crater circulation amplifies the tides to some extent. During the first 100 sols tidal amplitudes generally decline, which we attribute to the waning influence of the Kelvin wave. Toward the end of the 100 sol period, tidal amplitudes abruptly increased in response to a nearby regional dust storm that did not expand to global scales. Tidal phases changed abruptly during the onset of this storm suggesting a change in the interaction between eastward and westward modes. When compared to Viking Lander 2 data, the REMS daily average pressures show no evidence yet for the 1-20 Pa increase expected from the possible loss of CO 2 from the south polar residual cap. Key Points REMS pressure sensor is operating nominally New phenomena have been discovered Familiar phenomena have been detected ©2014. American Geophysical Union. All Rights Reserved.

Subject headings

TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)

Keyword

MSL
pressure
REMS
Atmospheric science
Atmosfärsvetenskap

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Aerospace Engine ...

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