Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018
Abstract We report the first observations of Martian thermospheric warming associated with the Planet Encircling Dust Event (PEDE) of 2018. We used dayglow observations made by the Imaging Ultraviolet Spectrograph instrument aboard the MAVEN spacecraft to retrieve the upper atmosphere temperature st...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2019GL085302 |
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| author | S. K. Jain S. W. Bougher J. Deighan N. M. Schneider F. González Galindo A. I. F. Stewart R. Sharrar D. Kass J. Murphy D. Pawlowski |
| author_facet | S. K. Jain S. W. Bougher J. Deighan N. M. Schneider F. González Galindo A. I. F. Stewart R. Sharrar D. Kass J. Murphy D. Pawlowski |
| author_sort | S. K. Jain |
| collection | DOAJ |
| description | Abstract We report the first observations of Martian thermospheric warming associated with the Planet Encircling Dust Event (PEDE) of 2018. We used dayglow observations made by the Imaging Ultraviolet Spectrograph instrument aboard the MAVEN spacecraft to retrieve the upper atmosphere temperature structures. Our analysis shows that the two‐cell meridional circulation pattern may be operating before the PEDE‐2018, which resulted in the cooling of lower/middle latitudes and warming at higher latitudes. However, after the onset, the existing circulation pattern gets dampened, resulted in a weaker latitudinal temperature structure. We saw that mean temperatures rose by about 20 K for the same local time after the onset of the dust storm. Our 3‐D Mars General Ionosphere Thermosphere Model calculations were able to reproduce the temperatures during the predust and early dust storm but failed to fully capture the temperature trend during the growth phase of the PEDE of 2018. |
| format | Article |
| id | doaj-art-640df9104d544476a7d5f48edef52fff |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2020-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-640df9104d544476a7d5f48edef52fff2025-08-20T03:10:10ZengWileyGeophysical Research Letters0094-82761944-80072020-02-01473n/an/a10.1029/2019GL085302Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018S. K. Jain0S. W. Bougher1J. Deighan2N. M. Schneider3F. González Galindo4A. I. F. Stewart5R. Sharrar6D. Kass7J. Murphy8D. Pawlowski9Laboratory for Atmosphere and Space Physics University of Colorado Boulder Boulder CO USAClimate and Space Sciences and Engineering Department University of Michigan Ann Arbor MI USALaboratory for Atmosphere and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmosphere and Space Physics University of Colorado Boulder Boulder CO USAInstituto de AstrofÃsica de Andalucía‐CSIC Granada SpainLaboratory for Atmosphere and Space Physics University of Colorado Boulder Boulder CO USAClimate and Space Sciences and Engineering Department University of Michigan Ann Arbor MI USAJet Propulsion Laboratory California Institute of Technology Pasadena CA USADepartment of Astronomy New Mexico State University Las Cruces NM USADepartment of PhysicsEastern Michigan University Ypsilanti MI USAAbstract We report the first observations of Martian thermospheric warming associated with the Planet Encircling Dust Event (PEDE) of 2018. We used dayglow observations made by the Imaging Ultraviolet Spectrograph instrument aboard the MAVEN spacecraft to retrieve the upper atmosphere temperature structures. Our analysis shows that the two‐cell meridional circulation pattern may be operating before the PEDE‐2018, which resulted in the cooling of lower/middle latitudes and warming at higher latitudes. However, after the onset, the existing circulation pattern gets dampened, resulted in a weaker latitudinal temperature structure. We saw that mean temperatures rose by about 20 K for the same local time after the onset of the dust storm. Our 3‐D Mars General Ionosphere Thermosphere Model calculations were able to reproduce the temperatures during the predust and early dust storm but failed to fully capture the temperature trend during the growth phase of the PEDE of 2018.https://doi.org/10.1029/2019GL085302Marsthermospheredust storm |
| spellingShingle | S. K. Jain S. W. Bougher J. Deighan N. M. Schneider F. González Galindo A. I. F. Stewart R. Sharrar D. Kass J. Murphy D. Pawlowski Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 Geophysical Research Letters Mars thermosphere dust storm |
| title | Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 |
| title_full | Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 |
| title_fullStr | Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 |
| title_full_unstemmed | Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 |
| title_short | Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018 |
| title_sort | martian thermospheric warming associated with the planet encircling dust event of 2018 |
| topic | Mars thermosphere dust storm |
| url | https://doi.org/10.1029/2019GL085302 |
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