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- Gebhardt, C.United Arab Emirates University, National Space Science and Technology Center, Al Ain, UAE (author)
Characterizing Dust‐Radiation Feedback and Refining the Horizontal Resolution of the MarsWRF Model down to 0.5 Degree
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- John Wiley & Sons,2021
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:ltu-83108
- https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-83108URI
- https://doi.org/10.1029/2020JE006672DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Validerad;2021;Nivå 2;2021-03-22 (johcin)
- In this study, three simulations by the Mars Weather Research and Forecasting (MarsWRF) model are compared: two 10 Martian Year (MY) 2° × 2° simulations with (i) fully radiatively‐active dust and (ii) a prescribed dust scenario, and a (iii) 1 MY 0.5° × 0.5° simulation with prescribed dust as in (ii). From comparing (i) and (ii), we found that the impact of dust‐radiation feedback is individually different for any region. The most striking evidence are major dust lifting activities to the south of Chryse Planitia (S‐CP) seen in (i) but not in (ii). By contrast, dust lifting and deposition on the southern slopes and inside the Hellas Basin are similar in both simulations. The latter, in turn, points towards a similar near‐surface atmospheric circulation. In (iii), the total global amount of wind stress lifted dust is by a factor of ∼8 higher than in (ii), with S‐CP being a major lifting region as in (i). Nonetheless, the surface dust lifting by wind stress in (iii) may be also reduced regionally, as seen at the peak of Elysium Mons because of its unique topography. The zonal mean circulation in (i) is generally of a comparable strength to that in (ii), with exceptions in global dust storm years, when it is clearly stronger in (i), in line with a dustier atmosphere. The differences in the zonal mean circulation between (ii) and (iii) are mostly at lower altitudes, and may arise due to differences in the representation of the topography.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Maskinteknik Rymd- och flygteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Aerospace Engineering hsv//eng
- dust cycle
- dust‐radiation feedback
- interactive dust
- MarsWRF model
- model resolution
- prescribed dust
- Atmospheric science
- Atmosfärsvetenskap
Added entries (persons, corporate bodies, meetings, titles ...)
- Abuelgasim, A.United Arab Emirates University, Department of Geography and Urban Sustainability, College of Humanities and Social Sciences, Al Ain, UAE. United Arab Emirates University, National Space Science and Technology Center, Al Ain, UAE (author)
- Fonseca, RicardoLuleå tekniska universitet,Rymdteknik,Khalifa University of Science and Technology, Abu Dhabi, UAE(Swepub:ltu)ricfon (author)
- Martin-Torres, JavierLuleå tekniska universitet,Rymdteknik(Swepub:ltu)javmar (author)
- Zorzano Mier, María-PazLuleå tekniska universitet,Rymdteknik(Swepub:ltu)marzor (author)
- United Arab Emirates University, National Space Science and Technology Center, Al Ain, UAEUnited Arab Emirates University, Department of Geography and Urban Sustainability, College of Humanities and Social Sciences, Al Ain, UAE. United Arab Emirates University, National Space Science and Technology Center, Al Ain, UAE (creator_code:org_t)
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- In:Journal of Geophysical Research - Planets: John Wiley & Sons126:32169-90972169-9100
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