A Lorenz/Boer energy budget for the atmosphere of Mars from a "reanalysis" of spacecraft observations

Fachreddin Tabataba-Vakili, Peter L. Read, Stephen R. Lewis, Luca Montabone, Tao Ruan, Yixiong Wang, Alexandru Valeanu, Roland M.B. Young

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We calculate a Lorenz energy budget for the Martian atmosphere from reanalysis derived from Mars Global Surveyor data for Mars years 24-27. We present global, annual mean energy and conversion rates per unit area and per unit mass and compare these to Earth data. The directions of the energy conversion terms for Mars are similar to Earth, with the exception of the barotropic conversion between zonal and eddy kinetic energy reservoirs. Further, seasonal and hemispheric decomposition reveals a strong conversion between zonal energy reservoirs over the year, but these balance each other out in global and annual mean. On separating the diurnal timescale, the contribution to the conversion terms and eddy kinetic energy for diurnal and shorter timescales in many cases (especially during planet-encircling dust storms) exceeds the contribution of longer timescales. This suggests that thermal tides have a significant effect on the generation of eddy kinetic energy.

Original languageEnglish
Pages (from-to)8320-8327
Number of pages8
JournalGeophysical Research Letters
Volume42
Issue number20
DOIs
Publication statusPublished - Oct 28 2015
Externally publishedYes

Keywords

  • Lorenz energy cycle
  • Mars
  • diurnal tides
  • hemispheres
  • seasons

ASJC Scopus subject areas

  • Geophysics
  • General Earth and Planetary Sciences

Fingerprint

Dive into the research topics of 'A Lorenz/Boer energy budget for the atmosphere of Mars from a "reanalysis" of spacecraft observations'. Together they form a unique fingerprint.

Cite this