منابع مشابه
Dust devils as observed by Mars Pathfinder
[1] Dust devils are localized meteorological phenomena frequently observed in terrestrial dry lands and desert landscapes as well as on Mars. They are low-pressure, warm core vortices that form at the bottom of convective plumes and loft dust from the surface. They move with the speed of the ambient wind and are tilted by wind shears. The Mars Pathfinder detected dust devils as dust plumes in t...
متن کاملRadiative Transfer Modelling of Dust Devils
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متن کاملRetrieving Dust Properties by Radiative Transfer Modelling of Dust Devils on Earth and Mars
To date, characterisation of dust devils by interpreting spectral measurements taken during a transit over a spectroscopic instrument has yet to be done and would provide valuable information of the physical size, dust load and internal structure of transiting dust devils. A Monte Carlo Radiative Transfer model (MCRT) was developed to investigate the spectral variations during a dust devil tran...
متن کاملObserving desert dust devils with a pressure logger
A commercial pressure logger has been adapted for long-term field use. Its flash memory affords the large data volume to allow months of pressure measurements to be acquired at the rapid cadence (> 1 Hz) required to detect dust devils, small dust-laden convective vortices observed in arid regions. The power consumption of the unit is studied and battery and solar/battery options evaluated for l...
متن کاملElectrical discharges and broadband radio emission by Martian dust devils and dust storms
[1] Triboelectric charging of saltating and colliding sand and dust particles produces strong electric fields in terrestrial dust devils and dust storms. Acceleration of the charged particles, as well as microdischarges between them, generates wideband electromagnetic radiation. Similar phenomena are expected to be ubiquitous on Mars, because Martian dust devils and dust storms are larger, stro...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Planets
سال: 2020
ISSN: 2169-9097,2169-9100
DOI: 10.1029/2019je006238