Mars dust storms: Interannual variability and chaos
نویسندگان
چکیده
منابع مشابه
Chaos terrain, storms, and past climate on Mars
[1] We model the atmospheric response to a chaos‐forming event at Juventae Chasma, north of Valles Marineris, Mars, using the Mars Regional Atmospheric Modeling System (MRAMS). Interactions between lake‐driven convergence, topography, and the regional wind field steer lake‐induced precipitation to the southwest. Mean snowfall reaches a maximum of 0.9 mm/h water equivalent (peak snowfall 1.7 mm/...
متن کاملDust cycles and storms in a Mars GCM
A number of different dust lifting parameterizations have been used to model the injection of dust from the Martian surface into the atmosphere, and the form of the resulting dust cycles and dust storms produced are found to be highly dependent on the precise form of the parameterization used, provided that it includes some threshold dependence, and particularly where radiatively active dust tr...
متن کاملDust storms and ephemeral lakes
In drylands, both dust storms and ephemeral salt lakes (playas) are common. Observations using remote sensing and ground studies have shown that these playas can be major sources of saline dust storms. Some basins have recently become desiccated as a result of water abstraction by humans, and these have become significant sources of dust. The timing and amounts of dust emissions depends on such...
متن کاملInterannual variability in species composition explained as seasonally entrained chaos.
The species composition of plankton, insect and annual plant communities may vary markedly from year to year. Such interannual variability is usually thought to be driven by year-to-year variation in weather conditions. Here we examine an alternative explanation. We studied the effects of regular seasonal forcing on a multi-species predator-prey model consisting of phytoplankton and zooplankton...
متن کاملInterannual Variability of the Mars Thermosphere: New Simulations and Comparisons with Recent Mars Datasets
Detailed studies exist that explore the global, seasonal, and interannual variations of the Martian lower atmosphere (below 90 km) [e.g. Liu et al., 2003]. Key findings indicate that observed temperatures are quite repeatable from one Mars aphelion season to the next. Conversely, perihelion temperatures can change radically on an interannual basis, depending on the timing and intensity of dust ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 1993
ISSN: 0148-0227
DOI: 10.1029/93je00676