First Assimilation of Atmospheric Temperatures From the Emirates Mars InfraRed Spectrometer

Roland M.B. Young; Ehouarn Millour; François Forget; Michael D. Smith; Mariam Aljaberi; Christopher S. Edwards; Nathan Smith; Saadat Anwar; Philip R. Christensen; Michael J. Wolff

doi:10.1029/2022GL099656

First Assimilation of Atmospheric Temperatures From the Emirates Mars InfraRed Spectrometer

Roland M.B. Young, Ehouarn Millour, François Forget, Michael D. Smith, Mariam Aljaberi, Christopher S. Edwards, Nathan Smith, Saadat Anwar, Philip R. Christensen, Michael J. Wolff

Astronomy and Planetary Sciences

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

1 Scopus citations

Abstract

We assimilate atmospheric temperatures from the Emirates Mars Infrared Spectrometer on board the Emirates Mars Mission (EMM) into the Mars Planetary Climate Model at the start of EMM's early science phase (Mars Year 36 L_s = 57.34–92.90°). Mars data assimilation benefits significantly from EMM's unique near-hemispheric observations, frequent repeated observations of the same location, and full diurnal cycle coverage. Our analysis verifies well against in-sample temperature observations, and is 1–3 K warmer than Mars Climate Sounder observations. We identify a warm front in concurrent Emirates eXploration Imager observations by correlating an elongated water ice cloud with temperatures and winds in the analysis; the analysis winds are consistent with its observed motion. We also calculate the full horizontal wind diurnal cycle; the zonal flow is weaker and the meridional circulation is stronger than simulating the same time period using the model alone.

Original language	English (US)
Article number	e2022GL099656
Journal	Geophysical Research Letters
Volume	49
Issue number	21
DOIs	https://doi.org/10.1029/2022GL099656
State	Published - Nov 16 2022

Keywords

Emirates Mars Mission
Mars
atmosphere
data assimilation
thermal infrared
weather

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2022GL099656

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title = "First Assimilation of Atmospheric Temperatures From the Emirates Mars InfraRed Spectrometer",

abstract = "We assimilate atmospheric temperatures from the Emirates Mars Infrared Spectrometer on board the Emirates Mars Mission (EMM) into the Mars Planetary Climate Model at the start of EMM's early science phase (Mars Year 36 Ls = 57.34–92.90°). Mars data assimilation benefits significantly from EMM's unique near-hemispheric observations, frequent repeated observations of the same location, and full diurnal cycle coverage. Our analysis verifies well against in-sample temperature observations, and is 1–3 K warmer than Mars Climate Sounder observations. We identify a warm front in concurrent Emirates eXploration Imager observations by correlating an elongated water ice cloud with temperatures and winds in the analysis; the analysis winds are consistent with its observed motion. We also calculate the full horizontal wind diurnal cycle; the zonal flow is weaker and the meridional circulation is stronger than simulating the same time period using the model alone.",

keywords = "Emirates Mars Mission, Mars, atmosphere, data assimilation, thermal infrared, weather",

author = "Young, {Roland M.B.} and Ehouarn Millour and Fran{\c c}ois Forget and Smith, {Michael D.} and Mariam Aljaberi and Edwards, {Christopher S.} and Nathan Smith and Saadat Anwar and Christensen, {Philip R.} and Wolff, {Michael J.}",

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year = "2022",

month = nov,

day = "16",

doi = "10.1029/2022GL099656",

language = "English (US)",

volume = "49",

journal = "Geophysical Research Letters",

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T1 - First Assimilation of Atmospheric Temperatures From the Emirates Mars InfraRed Spectrometer

AU - Young, Roland M.B.

AU - Millour, Ehouarn

AU - Forget, François

AU - Smith, Michael D.

AU - Aljaberi, Mariam

AU - Edwards, Christopher S.

AU - Smith, Nathan

AU - Anwar, Saadat

AU - Christensen, Philip R.

AU - Wolff, Michael J.

PY - 2022/11/16

Y1 - 2022/11/16

N2 - We assimilate atmospheric temperatures from the Emirates Mars Infrared Spectrometer on board the Emirates Mars Mission (EMM) into the Mars Planetary Climate Model at the start of EMM's early science phase (Mars Year 36 Ls = 57.34–92.90°). Mars data assimilation benefits significantly from EMM's unique near-hemispheric observations, frequent repeated observations of the same location, and full diurnal cycle coverage. Our analysis verifies well against in-sample temperature observations, and is 1–3 K warmer than Mars Climate Sounder observations. We identify a warm front in concurrent Emirates eXploration Imager observations by correlating an elongated water ice cloud with temperatures and winds in the analysis; the analysis winds are consistent with its observed motion. We also calculate the full horizontal wind diurnal cycle; the zonal flow is weaker and the meridional circulation is stronger than simulating the same time period using the model alone.

AB - We assimilate atmospheric temperatures from the Emirates Mars Infrared Spectrometer on board the Emirates Mars Mission (EMM) into the Mars Planetary Climate Model at the start of EMM's early science phase (Mars Year 36 Ls = 57.34–92.90°). Mars data assimilation benefits significantly from EMM's unique near-hemispheric observations, frequent repeated observations of the same location, and full diurnal cycle coverage. Our analysis verifies well against in-sample temperature observations, and is 1–3 K warmer than Mars Climate Sounder observations. We identify a warm front in concurrent Emirates eXploration Imager observations by correlating an elongated water ice cloud with temperatures and winds in the analysis; the analysis winds are consistent with its observed motion. We also calculate the full horizontal wind diurnal cycle; the zonal flow is weaker and the meridional circulation is stronger than simulating the same time period using the model alone.

KW - Emirates Mars Mission

KW - Mars

KW - atmosphere

KW - data assimilation

KW - thermal infrared

KW - weather

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U2 - 10.1029/2022GL099656

DO - 10.1029/2022GL099656

M3 - Article

AN - SCOPUS:85141938248

SN - 0094-8276

VL - 49

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 21

M1 - e2022GL099656

ER -

First Assimilation of Atmospheric Temperatures From the Emirates Mars InfraRed Spectrometer

Abstract

Keywords

ASJC Scopus subject areas

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