ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

The Deuterium Isotopic Ratio of Water Released From the Martian Caps as Measured With TGO/NOMAD

Journal
Date Issued
2022
Author(s)
Villanueva, Geronimo L.
•
Liuzzi, Giuliano
•
Aoki, Shohei
•
Stone, Shane W.
•
Brines, Adrian
•
Thomas, Ian R.
•
Lopez-Valverde, Miguel Angel
•
Trompet, Loic
•
Erwin, Justin
•
Daerden, Frank
•
Ristic, Bojan
•
Smith, Michael D.
•
Mumma, Michael J.
•
Faggi, Sara
•
Kofman, Vincent
•
Robert, Séverine
•
Neary, Lori
•
Patel, Manish
•
•
Lopez-Moreno, Jose Juan
•
Vandaele, Ann Carine
DOI
Abstract
We report vertical profiles of water and D/H for one Martian year as measured with the TGO/NOMAD instrument. The observations were performed via solar occultation, providing water profiles up to ∼100 km and D/H up to ∼60 km, with a vertical resolution of 1-2 km. The measurements reveal dramatic variability of water and D/H over short timescales and with altitude and location on the planet. We investigated the release of seasonal water from the polar caps during southern and northern summer, by mapping water and its D/H near the polar regions. Above the hygropause, the D/H drops substantially below 2 VSMOW, and both seasonal polar caps show a consistent and enriched D/H of 5-7 VSMOW within the hygrosphere.
Volume
49
Issue
12
Start page
e98161
Uri
Url
Issn Identifier
0094-8276
Ads BibCode
2022GeoRL..4998161V
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

GRL- 2022 - Villanueva.pdf

Description
PDF editoriale
Size

2.55 MB

Format

Adobe PDF

Checksum (MD5)

702b5e7929e63e81e6784d861b109148