A Martian global groundwater model

A global groundwater flow model was constructed for Mars to study hydrologic response under a variety of scenarios, improving and extending earlier simple cross sectional models. The model is capable of treating both steady state and transient flow as well as permeability that is anisotropic in the...

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Bibliographic Details
Main Author: Howard, Alan D.
Format: Other/Unknown Material
Language:unknown
Published: 1991
Subjects:
LUNAR AND PLANETARY EXPLORATION
permafrost
Online Access:http://hdl.handle.net/2060/19920001551
id ftnasantrs:oai:casi.ntrs.nasa.gov:19920001551
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19920001551 2023-05-15T17:57:35+02:00 A Martian global groundwater model Howard, Alan D. Unclassified, Unlimited, Publicly available Jun 1, 1991 application/pdf http://hdl.handle.net/2060/19920001551 unknown Document ID: 19920001551 Accession ID: 92N10769 http://hdl.handle.net/2060/19920001551 No Copyright CASI LUNAR AND PLANETARY EXPLORATION NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990; p 114-116 1991 ftnasantrs 2015-03-15T05:02:13Z A global groundwater flow model was constructed for Mars to study hydrologic response under a variety of scenarios, improving and extending earlier simple cross sectional models. The model is capable of treating both steady state and transient flow as well as permeability that is anisotropic in the horizontal dimensions. A single near surface confining layer may be included (representing in these simulations a coherent permafrost layer). Furthermore, in unconfined flow, locations of complete saturation and seepage are determined. The flow model assumes that groundwater gradients are sufficiently low that DuPuit conditions are satisfied and the flow component perpendicular to the ground surface is negligible. The flow equations were solved using a finite difference method employing 10 deg spacing of latitude and longitude. Other/Unknown Material permafrost NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic LUNAR AND PLANETARY EXPLORATION
spellingShingle LUNAR AND PLANETARY EXPLORATION
Howard, Alan D.
A Martian global groundwater model
topic_facet LUNAR AND PLANETARY EXPLORATION
description A global groundwater flow model was constructed for Mars to study hydrologic response under a variety of scenarios, improving and extending earlier simple cross sectional models. The model is capable of treating both steady state and transient flow as well as permeability that is anisotropic in the horizontal dimensions. A single near surface confining layer may be included (representing in these simulations a coherent permafrost layer). Furthermore, in unconfined flow, locations of complete saturation and seepage are determined. The flow model assumes that groundwater gradients are sufficiently low that DuPuit conditions are satisfied and the flow component perpendicular to the ground surface is negligible. The flow equations were solved using a finite difference method employing 10 deg spacing of latitude and longitude.
format Other/Unknown Material
author Howard, Alan D.
author_facet Howard, Alan D.
author_sort Howard, Alan D.
title A Martian global groundwater model
title_short A Martian global groundwater model
title_full A Martian global groundwater model
title_fullStr A Martian global groundwater model
title_full_unstemmed A Martian global groundwater model
title_sort martian global groundwater model
publishDate 1991
url http://hdl.handle.net/2060/19920001551
op_coverage Unclassified, Unlimited, Publicly available
genre permafrost
genre_facet permafrost
op_source CASI
op_relation Document ID: 19920001551
Accession ID: 92N10769
http://hdl.handle.net/2060/19920001551
op_rights No Copyright
_version_ 1766166044821422080

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