GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey
The age and nature of the tropical hydrogen deposits on Mars remain uncertain. Competing theories suggest that the deposits are composed of either ancient, hydrated minerals or recently emplaced water ice. We use the GFDL Mars GCM with a fully coupled atmosphere-regolith water cycle to explore which...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2005
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/20050174680 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:20050174680 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:20050174680 2023-05-15T16:38:12+02:00 GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey Richardson, M. I. Mischna, M. A. Unclassified, Unlimited, Publicly available [2005] application/pdf http://hdl.handle.net/2060/20050174680 unknown Document ID: 20050174680 http://hdl.handle.net/2060/20050174680 Copyright, Distribution under U.S. Government purpose rights CASI Lunar and Planetary Science and Exploration Lunar and Planetary Science XXXVI, Part 13; LPI-Contrib-1234-Pt-13 2005 ftnasantrs 2017-10-07T22:47:32Z The age and nature of the tropical hydrogen deposits on Mars remain uncertain. Competing theories suggest that the deposits are composed of either ancient, hydrated minerals or recently emplaced water ice. We use the GFDL Mars GCM with a fully coupled atmosphere-regolith water cycle to explore which of these hypotheses is best supported by model results. Such a conclusion can be drawn from the resultant trends in subsurface ice evolution during various obliquity and polar cap conditions. Our results suggest that the tropical hydrogen distribution is best explained by recent emplacement of ice through either exposure of the south polar ice cap or by burial of tropical surface ice from the most recent high obliquity excursions. Other/Unknown Material Ice cap NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Lunar and Planetary Science and Exploration |
spellingShingle |
Lunar and Planetary Science and Exploration Richardson, M. I. Mischna, M. A. GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
topic_facet |
Lunar and Planetary Science and Exploration |
description |
The age and nature of the tropical hydrogen deposits on Mars remain uncertain. Competing theories suggest that the deposits are composed of either ancient, hydrated minerals or recently emplaced water ice. We use the GFDL Mars GCM with a fully coupled atmosphere-regolith water cycle to explore which of these hypotheses is best supported by model results. Such a conclusion can be drawn from the resultant trends in subsurface ice evolution during various obliquity and polar cap conditions. Our results suggest that the tropical hydrogen distribution is best explained by recent emplacement of ice through either exposure of the south polar ice cap or by burial of tropical surface ice from the most recent high obliquity excursions. |
format |
Other/Unknown Material |
author |
Richardson, M. I. Mischna, M. A. |
author_facet |
Richardson, M. I. Mischna, M. A. |
author_sort |
Richardson, M. I. |
title |
GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
title_short |
GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
title_full |
GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
title_fullStr |
GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
title_full_unstemmed |
GCM Simulations of the Tropical Hydrogen Distribution Observed by Mars Odyssey |
title_sort |
gcm simulations of the tropical hydrogen distribution observed by mars odyssey |
publishDate |
2005 |
url |
http://hdl.handle.net/2060/20050174680 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
CASI |
op_relation |
Document ID: 20050174680 http://hdl.handle.net/2060/20050174680 |
op_rights |
Copyright, Distribution under U.S. Government purpose rights |
_version_ |
1766028485800755200 |