Effect of the Net Charges Carried by Dust on Martian Atmospheric Temperature
Abstract Dust particles suspended in the dusty Martian atmosphere are prone to being charged. In this paper, we investigate the effect of the net charges carried by dust particles on the radiative properties of Martian dust. We find that net charges carried by dust particles significantly alter the...
| Published in: | Geophysical Research Letters |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-07-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1029/2023GL102808 |
| Summary: | Abstract Dust particles suspended in the dusty Martian atmosphere are prone to being charged. In this paper, we investigate the effect of the net charges carried by dust particles on the radiative properties of Martian dust. We find that net charges carried by dust particles significantly alter the extinction properties and single scattering albedo of dust at thermal infrared radiation band, which results in an enhancement of the infrared heating rate, up to 6.36%. We show that the discrepancy between the atmospheric temperature predicted by the Mars Atmosphere Model and the one detected during the Mars rover landing is reduced to within 11% when the effect of the net charges carried by the dust is considered. Therefore, it is essential to consider the effect of the net charges carried by dust particles for an accurate characterization of the atmospheric temperature. |
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| ISSN: | 0094-8276 1944-8007 |