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http://hdl.handle.net/2122/15669
Authors: | Nardi, Adriano* Piersanti, Antonio* |
Title: | Geomorphologic observations and physical hypothesis on Martian gullies | Other Titles: | Osservazioni geomorfologiche e ipotesi fisiche sulla natura dei calanchi marziani | Journal: | Italian Journal of Geosciences | Series/Report no.: | 2/141 (2022) | Publisher: | SGI | Issue Date: | Jun-2022 | DOI: | 10.3301/IJG.2022.12 | URL: | https://www.italianjournalofgeosciences.it/297/article-1125/geomorphologic-observations-and-physical-hypothesis-on-martian-gullies.html https://www.italianjournalofgeosciences.it/modal_download.php?w=ft&ida=1125 |
Keywords: | Mars gullies liquid water Marte acqua |
Subject Classification: | 05.07. Space and Planetary sciences 03.02. Hydrology |
Abstract: | We propose a hypothesis to explain the erosive phenomenon of Martian gullies under current climatic conditions. This model is consistent with the morphology and finds support in the characteristic geographic diffusion of the gullies, which seem to avoid exposure to the sun and the hottest latitudes. We hypothesize a transient flow of spring water fed by melting permafrost which can occur only in certain latitudes and altitudes, with seasonal variability and for a very short time. Furthermore, this phenomenon can only occur in certain ranges of temperature and pressure, therefore when particular and sporadic weather conditions allow it. For this reason, we propose to call it weather-springing water (WSW). | Description: | Hypothesis on the presence of liquid water on the Martian surface under current climatic conditions. --- Ipotesi sulla presenza di acqua liquida sulla superficie di Marte alle attuali condizioni climatiche. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Acqua Marte (Nardi, 2022).docx | ultima bozza sottomessa | 4.67 MB | Microsoft Word XML | View/Open |
Nardi ijg.pdf | Restricted Paper | 2.64 MB | Adobe PDF | View/Open |
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