English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/218809
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Diurnal variation in Mars equatorial odd oxygen species: Chemical production and loss mechanisms

AuthorsViúdez-Moreira, D.; Saiz-Lopez, A. ; Blaszczak-Boxe, C.S.; Manfredi, J. A. R.; Yung, Y.L.
KeywordsOzone distribution
Photochemistry
Martian atmosphere modeling
Odd oxygen species
NASA Mars Science Laboratory (MSL)
Issue Date15-Oct-2019
PublisherAcademic Press
CitationIcarus 336: 113458 (2020)
AbstractOdd oxygen (O, O(D), O) abundance and its variability in the Martian atmosphere results from complex physical and chemical interactions among atmospheric species, which are driven mainly by solar radiation and atmospheric conditions. Although our knowledge of Mars’ ozone distribution and variability has been significantly improved with the arrival of several recent orbiters, the data acquired by such missions is not enough to properly characterize its diurnal variation. Thus, photochemical models are useful tools to assist in such a characterization. Here, both the Martian ozone vertical distribution and its diurnal variation for equatorial latitudes are studied, using the JPL/Caltech one-dimensional photochemical model and diurnally-variable atmospheric profiles. The chosen equatorial latitude-region is based on the recent and future plans of NASA and other agencies to study this region by different surface missions. A production and loss analysis is performed in order to characterize the chemical mechanisms that drive odd oxygen's diurnal budget and variability on Mars making use of the comprehensive chemistry implemented in the model. The diurnal variation shows large differences in the abundance between daytime and nighttime; and variable behavior depending on the atmospheric layer. The photolysis-driven ozone diurnal profile is obtained at the surface, whilst a sharp decrease is obtained in the upper troposphere at daytime, which originates from the large differences in atomic oxygen abundances between atmospheric layers. Finally, no clear anticorrelation between ozone and water vapor is found in the diurnal cycle, contrary to the strong correlation observed by orbiters on a seasonal timescale.
Description16 págs., 15 figs., 1 tab., 1 app.
Publisher version (URL)http://dx.doi.org/10.1016/j.icarus.2019.113458
URIhttp://hdl.handle.net/10261/218809
DOIhttp://dx.doi.org/10.1016/j.icarus.2019.113458
Identifiersdoi: 10.1016/j.icarus.2019.113458
issn: 1090-2643
Appears in Collections:(CAB) Artículos
(IQFR) Artículos
Files in This Item:
File Description SizeFormat 
Diurnal variation.pdf4,08 MBAdobe PDFThumbnail
View/Open
ScienceDirect_files_28Aug2020_07-31-08.250.zip352,09 kBUnknownView/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.