A Frontal Dust Storm in the Northern Hemisphere at Solar Longitude 97—An Unusual Observation by the Emirates Mars Mission

C. Gebhardt; B. K. Guha; R. M.B. Young; M. J. Wolff

doi:10.1029/2022GL099528

A Frontal Dust Storm in the Northern Hemisphere at Solar Longitude 97—An Unusual Observation by the Emirates Mars Mission

C. Gebhardt, B. K. Guha, R. M.B. Young, M. J. Wolff

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The Emirates Mars Mission (EMM) science phase began in Martian Year 36, solar longitude 49, which is outside of the classical Mars dust storm season. EMM observed a distinct dust cloud at northern mid-to-high latitudes on 10 September 2021 (Martian Year 36, solar longitude 97). The dust cloud is an arc-shaped dust storm, typically observed at the northern polar cap edge. This type of non-season dust storm is a well-known phenomenon, but this particular case is interesting because the dust cloud has frontal structure. A large atmospheric front is unusual in this location and season. Moreover, EMM's unique observational coverage adds value to this observation. EMM provided a sequence of four camera images, which are separated by just 2–3 hr. The dust cloud showed very little motion over 7–8 hr, that is, it is quasi-stationary. We discuss relevant dynamical processes, supported by a consistency check with the Mars Climate Database.

Original language	English
Article number	e2022GL099528
Journal	Geophysical Research Letters
Volume	49
Issue number	20
DOIs	https://doi.org/10.1029/2022GL099528
Publication status	Published - Oct 28 2022

Keywords

dust storm
dynamics
Emirates Mars mission
front
polar cap
wind

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1029/2022GL099528

Cite this

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title = "A Frontal Dust Storm in the Northern Hemisphere at Solar Longitude 97—An Unusual Observation by the Emirates Mars Mission",

abstract = "The Emirates Mars Mission (EMM) science phase began in Martian Year 36, solar longitude 49, which is outside of the classical Mars dust storm season. EMM observed a distinct dust cloud at northern mid-to-high latitudes on 10 September 2021 (Martian Year 36, solar longitude 97). The dust cloud is an arc-shaped dust storm, typically observed at the northern polar cap edge. This type of non-season dust storm is a well-known phenomenon, but this particular case is interesting because the dust cloud has frontal structure. A large atmospheric front is unusual in this location and season. Moreover, EMM's unique observational coverage adds value to this observation. EMM provided a sequence of four camera images, which are separated by just 2–3 hr. The dust cloud showed very little motion over 7–8 hr, that is, it is quasi-stationary. We discuss relevant dynamical processes, supported by a consistency check with the Mars Climate Database.",

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author = "C. Gebhardt and Guha, {B. K.} and Young, {R. M.B.} and Wolff, {M. J.}",

note = "Funding Information: Funding for the development of the EMM mission was provided by the United Arab Emirates Government, and to co‐authors outside of the United Arab Emirates by the Mohammed Bin Rashid Space Centre. This work was also supported by a joint research agreement between the Mohammed Bin Rashid Space Centre and the National Space Science and Technology Center in the United Arab Emirates University. CG, BKG, and RMBY were supported by the United Arab Emirates University Grant “Mars and Earth atmospheric science research at the National Space Science and Technology Center,” G00003407. RMBY was also supported by UAE University grant G00003322. Funding Information: Discussion on Dust Storm Dynamics, Supported by the Mars Climate Database Publisher Copyright: {\textcopyright} 2022. The Authors.",

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N1 - Funding Information: Funding for the development of the EMM mission was provided by the United Arab Emirates Government, and to co‐authors outside of the United Arab Emirates by the Mohammed Bin Rashid Space Centre. This work was also supported by a joint research agreement between the Mohammed Bin Rashid Space Centre and the National Space Science and Technology Center in the United Arab Emirates University. CG, BKG, and RMBY were supported by the United Arab Emirates University Grant “Mars and Earth atmospheric science research at the National Space Science and Technology Center,” G00003407. RMBY was also supported by UAE University grant G00003322. Funding Information: Discussion on Dust Storm Dynamics, Supported by the Mars Climate Database Publisher Copyright: © 2022. The Authors.

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N2 - The Emirates Mars Mission (EMM) science phase began in Martian Year 36, solar longitude 49, which is outside of the classical Mars dust storm season. EMM observed a distinct dust cloud at northern mid-to-high latitudes on 10 September 2021 (Martian Year 36, solar longitude 97). The dust cloud is an arc-shaped dust storm, typically observed at the northern polar cap edge. This type of non-season dust storm is a well-known phenomenon, but this particular case is interesting because the dust cloud has frontal structure. A large atmospheric front is unusual in this location and season. Moreover, EMM's unique observational coverage adds value to this observation. EMM provided a sequence of four camera images, which are separated by just 2–3 hr. The dust cloud showed very little motion over 7–8 hr, that is, it is quasi-stationary. We discuss relevant dynamical processes, supported by a consistency check with the Mars Climate Database.

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A Frontal Dust Storm in the Northern Hemisphere at Solar Longitude 97—An Unusual Observation by the Emirates Mars Mission

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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