English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A radiative-dynamic positive feedback mechanism (Wind Enhanced Interaction ofRadiation and Dust: WEIRD) for localized Mars dust disturbances was previouslyfound to operate in highly idealized numerical experiments. Numericalsimulations are used to test for the presence and quantitative effect of theradiative-dynamic WEIRD feedback mechanism under more realistic conditions.Comparisons between cases where lifted dust is radiatively active andradiatively passive elucidate the importance of the dust radiative forcing onthe thermodynamic and kinematic structure of the atmosphere. The WEIRD feedbackmechanism does operate under realistic conditions, although it can be maskedand diminished by a variety of other forcing mechanisms. Globally increaseddust loading is found to accelerate the local winds while simultaneouslydiminishing the impact of local physiographical forcing. Local enhancements ofdust produce a thermal and dynamical response that resembles many of theessential features seen in the idealized experiments. The development of a warmcore low, rotational wind tendencies and convergence boundaries intersecting atthe center of the strongest dust storms are consistent with WEIRD. Local andregional storms are effective at producing elevated dust layers above theboundary layer aided by the radiative forcing of the dust. Ubiquitous andpersistent thermal circulations associated with topography can also inject dustinto the free atmosphere above the planetary boundary layer, but they are lessefficient than the dust storms. High concentrations of dust in the lowestlevels of the atmosphere produce a significant and dramatic heating of theground and the near-surface air despite greatly reduced insolation at thesurface.

Wind-Enhanced Interaction of Radiation and Dust (WEIRD) and the Growth and Maintenance of Local Dust Storms on Mars