A one-year seasonal analysis of martian gravity waves using MCS data

Research output: Contribution to journalArticle

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Abstract

Temperature measurements from the Mars Climate Sounder on NASA’s Mars Reconnaissance Orbiter are examined for gravity wave signals using the Stockwell transform, a technique previously applied to terrestrial temperature profiles. An analysis is presented for internal-gravity waves throughout the martian atmosphere for the period July 2007–May 2009, representing a full martian year of data, divided by season. Momentum fluxes observed in the altitude range 200–20 Pa are measured as ∼10−5–10−3 Pa, significantly higher than at equivalent altitudes on Earth, and are primarily peaked around the tropics. Observed orographic effects are minimal; the primary observed effects are seasonal. Waves are shown to vary significantly in wavelength with latitude, but are generally approximately zonally symmetric. Horizontal wavelengths are consistently much shorter in the northern hemisphere than the southern.
Original languageEnglish
Pages (from-to)274-282
Number of pages9
JournalIcarus
Volume219
Issue number1
Early online date14 Mar 2012
DOIs
Publication statusPublished - 1 May 2012

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gravity wave
Mars
orographic effect
wavelength
Martian atmosphere
internal wave
temperature profile
momentum
Northern Hemisphere
transform
climate
temperature
analysis
effect
tropics

Cite this

A one-year seasonal analysis of martian gravity waves using MCS data. / Wright, Corwin J.

In: Icarus, Vol. 219, No. 1, 01.05.2012, p. 274-282.

Research output: Contribution to journalArticle

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