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Inventory of erosional features related to the residual CO<sub>2</sub>-ice-cap of the south polar region on Mars

Preuschmann, S. and van Gasselt, S. and Reiss, D. and Neukum, G. (2004) Inventory of erosional features related to the residual CO<sub>2</sub>-ice-cap of the south polar region on Mars. European Geosciences Union, I General Assembly, Nice, France, 25 - 30 April 2004. ISSN 1607-7962.

Full text not available from this repository.

Abstract

On the residual south polar CO2 cap of Mars a variety of peculiar morphologic features have been observed and attributed to erosional processes mainly. These features include the (1) swiss-cheese-terrain, defined by a variety of almost circular depressions and isolated irregularly shaped mesas with surrounding moats and (2) the fingerprint terrain, which is characterized by large plains with equally-spaced sinusoidal narrow ridges with a length of several kilometers. In this work, both the elongated features and the circular depressions have been mapped between the 80°S-90°S latitude range on the basis of the available imagery of the Mars Orbiter Camera (aerobraking to relay phase), classified by their small-scale morphology and put in a seasonal context. As far as possible, morphometry measurements have been performed on the basis of topographic data of the Mars Orbiter Laser Altimeter. Beside seasonal variations, observed in earlier work, we have found an abundance of transitional morphologies between the two landforms described above. The lateral distribution of the surface features will be presented with a main attention on seasonal changes. Formation processes have not been fully understood yet but sublimation of CO2-ice near the (sub-)surface has been discussed as a primary process. In this work, additional explanations including eolian processes have been discussed in more detail and the interaction between CO2 deposition, material removal by deflation or sublimation and the development of the characteristic pattern has been included in the analyses regarding the morphogenesis of these landforms.

Item URL in elib:https://elib.dlr.de/10957/
Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Inventory of erosional features related to the residual CO<sub>2</sub>-ice-cap of the south polar region on Mars
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Preuschmann, S.Remote Sensing of the Earth and Planets, Institute for Geosciences, FU Berlin, GermanyUNSPECIFIEDUNSPECIFIED
van Gasselt, S.Remote Sensing of the Earth and Planets, Institute for Geosciences, FU Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Reiss, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Neukum, G.Remote Sensing of the Earth and Planets, Institute for Geosciences, FU Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Date:2004
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:6
Page Range:06295
Series Name:Geophysical Research Abstracts
ISSN:1607-7962
Status:Published
Event Title:European Geosciences Union, I General Assembly, Nice, France, 25 - 30 April 2004
Organizer:EGU
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 16:34

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