Atmospheric Circulation and Dust Activity on Mars
Abstract
Martian dust storms can grow to planetary scale. They greatly influence the large-scale circulation, leading to pronounced seasonal and inter-annual variability. Major dust storms develop through a complex process that involves dust storm sequences with a diversity of trajectories, durations, and histories. The evolution pathways of dust storm sequences are closely linked to the circulation patterns of the atmosphere.
Using dust storm statistics from the Mars Daily Global Map (MDGM) dataset and meteorological variables from the Mars Analysis Correction Data Assimilation (MACDA) v1.0 reanalysis, we analyze how various circulation components evolve with the progress of different types of major dust storms. We investigate if/how the timing of circulation changes relates to the development styles of major dust storms. We also examine the relationship between the size/duration/location of dust storms and the magnitude of the atmospheric response on global and regional scales.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFM.P31A..07B
- Keywords:
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- 3346 Planetary meteorology;
- ATMOSPHERIC PROCESSESDE: 6225 Mars;
- PLANETARY SCIENCES: SOLAR SYSTEM OBJECTSDE: 5405 Atmospheres;
- PLANETARY SCIENCES: SOLID SURFACE PLANETSDE: 5445 Meteorology;
- PLANETARY SCIENCES: SOLID SURFACE PLANETS