Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32291
Title: | Daily dust variation from the PFS MEx observations | Authors: | WOLKENBERG, PAULINA MARIA GIURANNA, Marco |
Issue Date: | 2021 | Journal: | ICARUS | Number: | 353 | First Page: | 113823 | Abstract: | We collected over 7 Martian years (MY) of data observed by the Planetary Fourier Spectrometer (PFS) to present a daily variation of dust content in the Martian atmosphere. We found three typical behaviors of dust opacities with LT (local time). The most peculiar variation was observed when global dust storms (MYs 28 and 34) or particularly strong regional storms (MY 29) occurred on Mars. Here, large dust opacities were measured at 10 LT (MY 34) and 11 LT (MY 28). Then, relatively small values of dust opacities were found in the evening (20 LT). The non-dusty season, particularly near northern summer solstice, was characterized by a deep minimum of the total dust opacity at late night/early morning, while small variations around the mean value were observed during daytime. The clear trend of dust was observed over both hemispheres during early morning. We noted elevated dust opacities in the second half of the year compared to the non-dusty season in all Martian years without global dust storms. The daily variation of three types of storms occurring in moderately dusty conditions was also investigated. Dust in A storms was present in the atmosphere at all LTs and was mostly confined to the southern hemisphere. The maximum of dust opacities in B storms was found at 15–17 LT, close to the South Pole. C storms were mainly constrained to southern latitudes and occurred from the late morning to midday. | URI: | http://hdl.handle.net/20.500.12386/32291 | URL: | https://www.sciencedirect.com/science/article/pii/S0019103520302050?via%3Dihub https://api.elsevier.com/content/abstract/scopus_id/85084393356 |
ISSN: | 0019-1035 | DOI: | 10.1016/j.icarus.2020.113823 | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
dust_v6.pdf | preprint | 2.55 MB | Adobe PDF | View/Open |
Wolkenberg&Giuranna_2020.pdf | [Administrators only] | 3.49 MB | Adobe PDF |
Page view(s)
36
checked on Apr 24, 2024
Download(s)
14
checked on Apr 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.