PMID- 35865505
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220731
IS  - 2169-9097 (Print)
IS  - 2169-9100 (Electronic)
IS  - 2169-9097 (Linking)
VI  - 127
IP  - 5
DP  - 2022 May
TI  - InSight Pressure Data Recalibration, and Its Application to the Study of 
      Long-Term Pressure Changes on Mars.
PG  - e2022JE007190
LID - 10.1029/2022JE007190 [doi]
LID - e2022JE007190
AB  - Observations of the South Polar Residual Cap suggest a possible erosion of the 
      cap, leading to an increase of the global mass of the atmosphere. We test this 
      assumption by making the first comparison between Viking 1 and InSight surface 
      pressure data, which were recorded 40 years apart. Such a comparison also allows 
      us to determine changes in the dynamics of the seasonal ice caps between these 
      two periods. To do so, we first had to recalibrate the InSight pressure data 
      because of their unexpected sensitivity to the sensor temperature. Then, we had 
      to design a procedure to compare distant pressure measurements. We propose two 
      surface pressure interpolation methods at the local and global scale to do the 
      comparison. The comparison of Viking and InSight seasonal surface pressure 
      variations does not show changes larger than +/-8 Pa in the CO(2) cycle. Such 
      conclusions are supported by an analysis of Mars Science Laboratory (MSL) 
      pressure data. Further comparisons with images of the south seasonal cap taken by 
      the Viking 2 orbiter and MARCI camera do not display significant changes in the 
      dynamics of this cap over a 40 year period. Only a possible larger extension of 
      the North Cap after the global storm of MY 34 is observed, but the physical 
      mechanisms behind this anomaly are not well determined. Finally, the first 
      comparison of MSL and InSight pressure data suggests a pressure deficit at Gale 
      crater during southern summer, possibly resulting from a large presence of dust 
      suspended within the crater.
CI  - (c) 2022 The Authors.
FAU - Lange, L
AU  - Lange L
AUID- ORCID: 0000-0001-6433-1050
AD  - Laboratoire de Meteorologie Dynamique,Institut Pierre-Simon Laplace (LMD/IPSL) 
      Sorbonne Universite Centre National de la Recherche Scientifique (CNRS), Ecole 
      Polytechnique, Ecole Normale Superieure (ENS) Paris France.
FAU - Forget, F
AU  - Forget F
AD  - Laboratoire de Meteorologie Dynamique,Institut Pierre-Simon Laplace (LMD/IPSL) 
      Sorbonne Universite Centre National de la Recherche Scientifique (CNRS), Ecole 
      Polytechnique, Ecole Normale Superieure (ENS) Paris France.
FAU - Banfield, D
AU  - Banfield D
AD  - Cornell Center for Astrophysics and Planetary Science Cornell University Ithaca 
      NY USA.
FAU - Wolff, M
AU  - Wolff M
AUID- ORCID: 0000-0002-1127-8329
AD  - Space Science Institute Boulder CO USA.
FAU - Spiga, A
AU  - Spiga A
AD  - Laboratoire de Meteorologie Dynamique,Institut Pierre-Simon Laplace (LMD/IPSL) 
      Sorbonne Universite Centre National de la Recherche Scientifique (CNRS), Ecole 
      Polytechnique, Ecole Normale Superieure (ENS) Paris France.
AD  - Institut Universitaire de France Paris France.
FAU - Millour, E
AU  - Millour E
AD  - Laboratoire de Meteorologie Dynamique,Institut Pierre-Simon Laplace (LMD/IPSL) 
      Sorbonne Universite Centre National de la Recherche Scientifique (CNRS), Ecole 
      Polytechnique, Ecole Normale Superieure (ENS) Paris France.
FAU - Viudez-Moreiras, D
AU  - Viudez-Moreiras D
AUID- ORCID: 0000-0001-8442-3788
AD  - Centro de Astrobiologia (CSIC-INTA) and National Institute for Aerospace 
      Technology (INTA) Madrid Spain.
FAU - Bierjon, A
AU  - Bierjon A
AD  - Laboratoire de Meteorologie Dynamique,Institut Pierre-Simon Laplace (LMD/IPSL) 
      Sorbonne Universite Centre National de la Recherche Scientifique (CNRS), Ecole 
      Polytechnique, Ecole Normale Superieure (ENS) Paris France.
FAU - Piqueux, S
AU  - Piqueux S
AUID- ORCID: 0000-0003-0485-2908
AD  - Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA.
FAU - Newman, C
AU  - Newman C
AUID- ORCID: 0000-0001-9990-8817
AD  - Aeolis Research Chandler AZ USA.
FAU - Pla-Garcia, J
AU  - Pla-Garcia J
AUID- ORCID: 0000-0002-8047-3937
AD  - Centro de Astrobiologia (CSIC-INTA) and National Institute for Aerospace 
      Technology (INTA) Madrid Spain.
AD  - Southwest Research Institute Boulder CO USA.
FAU - Banerdt, W B
AU  - Banerdt WB
AUID- ORCID: 0000-0003-3125-1542
AD  - Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA.
LA  - eng
PT  - Journal Article
DEP - 20220523
PL  - United States
TA  - J Geophys Res Planets
JT  - Journal of geophysical research. Planets
JID - 101661797
PMC - PMC9286347
OTO - NOTNLM
OT  - CO2 ice
OT  - Mars
OT  - atmospheric mass
OT  - cap sublimation
OT  - pressure
EDAT- 2022/07/23 06:00
MHDA- 2022/07/23 06:01
PMCR- 2022/07/15
CRDT- 2022/07/22 02:28
PHST- 2022/01/15 00:00 [received]
PHST- 2022/05/09 00:00 [revised]
PHST- 2022/05/12 00:00 [accepted]
PHST- 2022/07/22 02:28 [entrez]
PHST- 2022/07/23 06:00 [pubmed]
PHST- 2022/07/23 06:01 [medline]
PHST- 2022/07/15 00:00 [pmc-release]
AID - JGRE21901 [pii]
AID - 10.1029/2022JE007190 [doi]
PST - ppublish
SO  - J Geophys Res Planets. 2022 May;127(5):e2022JE007190. doi: 10.1029/2022JE007190. 
      Epub 2022 May 23.