elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Slope Measurements in the Vallis Marineris and Kasei Vallis, Mars: A Comparison between Photogrammetry and Photoclinometry

Hauber, E. and Mosangini, C. (1997) Slope Measurements in the Vallis Marineris and Kasei Vallis, Mars: A Comparison between Photogrammetry and Photoclinometry. EGS XXII General Assembly, Vienna, Austria, 21-25 April 1997.

Full text not available from this repository.

Abstract

Two of the most prominent structures of the Martian surface are the large equatorial canyons of Valles Marineris, and the circum-Chryse system of anastomosing outflow channels. The knowledge of topography is of utmost importance in the understanding of the geological processes responsible for the formation of both the canyons and the valleys. Tectonic information like the dipping of fault planes, as well as information about the amount of erosion and sedimentation, can foten be gained only through three-dimensional analysis of imaging data. In planetary science, two common techniques have been used to derive topography: 1) the photogrammetric approach is based on the identification of common points in two or more images, a subsequent bundle-block adjustment, and the derivation of object point coordinates which can form the basis for a digital elevation model. 2) in photoclinometry, the brightness variation of the surface (i.e. the DN values in an image) is due to varying illumination caused by topography (shape from shading), assuming thatthe albedo is homogeneous along the measured profile. Small-scale features (e.g. small grabens near the main canyons, valley walls) were selected for the measurements where appropriate high-resolution Viking Orbiter imaging was available. The results of the two techniques are compared and the implication for the geologic interpretation are discussed.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1997,
Title:Slope Measurements in the Vallis Marineris and Kasei Vallis, Mars: A Comparison between Photogrammetry and Photoclinometry
Authors:
AuthorsInstitution or Email of Authors
Hauber, E.UNSPECIFIED
Mosangini, C.UNSPECIFIED
Date:1997
Status:Published
Keywords:Mars, Photogrammetrie, Photoklinometrie, Geologie
Event Title:EGS XXII General Assembly, Vienna, Austria, 21-25 April 1997
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:UNSPECIFIED
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:51

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.