A Global and Seasonal Perspective of Martian Water Vapor from ExoMars/NOMAD

Crismani, M. M. J.; Villanueva, G. L.; Liuzzi, G.; Smith, M. D.; Knutsen, E. W.; Daerden, F.; Neary, L.; Mumma, M. J.; Aoki, S.; Trompet, L.; Thomas, I.R.; Ristic, B.; Bellucci, G.; Piccialli, A.; Robert, S.; Mahieux, A.; Lopez Moreno, J‐J; Sindoni, G.; Giuranna, M.; Patel, M. R and Vandaele, A. C. (2021). A Global and Seasonal Perspective of Martian Water Vapor from ExoMars/NOMAD. Journal of Geophysical Research: Planets, 126(11), article no. e2021JE006878.

DOI: https://doi.org/10.1029/2021je006878

Abstract

Slightly less than a Martian Year of nominal science (March 2018–January 2020) with the ExoMars Trace Gas Orbiter has furthered the ongoing investigation of dayside water vapor column abundance. These dayside observations span latitudes between 75°S and 75°N, and all longitudes, which can provide global snapshots of the total water column abundances. In addition to tracking the seasonal transport of water vapor between poles, geographic enhancements are noted, particularly in the southern hemisphere, both in Hellas Basin, and in other regions not obviously correlated to topography. We report consistent water vapor climatology with previous spacecraft observations, however, note a difference in total water vapor content is noted. Finally, we are unable to find evidence for substantial diurnal variation in the total dayside water vapor column.

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About

  • Item ORO ID
  • 79769
  • Item Type
  • Journal Item
  • ISSN
  • 2169-9100
  • Project Funding Details
  • Funded Project NameProject IDFunding Body
    Retrievals of martian aerosols and ozone from ExoMars NOMAD dataST/V005332/1UKSA UK Space Agency
    ExoMars Trace Gas Orbiter PLS 2020-2023ST/V002295/1UKSA UK Space Agency
    Surface/atmosphere interactions from above and below.ST/S00145X/1UKSA UK Space Agency
    Characterizing the Martian water cycle by assimilating ExoMars 2016 Trace Gas Orbiter dataST/R001405/1UKSA UK Space Agency
  • Academic Unit or School
  • Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
    Faculty of Science, Technology, Engineering and Mathematics (STEM)
  • Research Group
  • Space
  • Copyright Holders
  • © 2021 American Geophysical Union.
  • SWORD Depositor
  • Jisc Publications-Router
  • Depositing User
  • Jisc Publications-Router

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