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24.04.2009
HRSC Press Release #431 - Ariadnes Colles (orbit 4209)
Perspektive [1] |
On 16 April 2007 the High-Resolution Stereo Camera (HRSC), under the leadership of the Principal Investigator Prof. Dr. Gerhard Neukum of Freie Universitaet Berlin, onboard the ESA spacecraft Mars Express obtained image data in orbit 4209 with a ground resolution of approximately 13 meters per pixel. The data were acquired in the region Ariadnes Colles at approximately 34° southern latitude and 172° eastern longitude.
Kontextkarte [2] |
Mars exhibits numerous so-called “chaotic terrains”, areas with an apparently inordinate accumulation of rock blocks of varying size and mesa like uprisings. Ariadnes Colles is one these chaotic terrains in the southern highlands of Mars. It extends across an area of 180 km x 160 km and is roughly half the size of Estonia. The images show the northwestern branch of the region.
Farbkodiertes Höhenmodell [3] |
The bulk of the area is dominated by erratically shaped rock blocks of varying size (1). The size of the rocks is between 1 kilometer and up to 10 kilometers. They are lighter colored than the neighboring areas. Some larger blocks appear like mesa and can reach a height of up to 300 meters (2). Eye catching is a lineation on the surface of the blocks showing a preferred northwest-southeast orientation (3). The north-western flanks are stronger eroded than the opposing south-eastern flanks.
Lagekarte der beschriebenen geologischen Strukturen [4] |
Due to volcano-tectonic processes (compression) so-called “wrinkle ridges” may form. The south-western part of the area exhibits such wrinkle ridges (4). They are the western boundary of Ariadnes Colles.
Nadiraufnahme [5] |
In contrast to other chaotic terrains such as Iani Chaos (see Press Release), Adrianes Colles is no headwater region. This raises the question if the region was formed by water or wind.
RGB Farbbild [6] |
The darker material in the southern part of the area is most likely sand or volcanic ash (5). Some slopes of the mesa shaped uprisings have been covered by the dark material which was blown up on the slopes (5).
Rot-Cyan Anaglyphe [7] |
A large, up to 1200 meters deep impact crater is visible on the left side of the image (6), superimposed by a smaller crater. The larger crater has a diameter of approximately 30 Kilometers and covers an area roughly the size of Hamburg. The smaller and younger crater which is almost centered in the older crater has a diameter of just 10 Kilometers.
Die Farbansichten wurden aus dem senkrecht blickenden Nadirkanal und den Farbkanälen erstellt, die Schrägansicht wurde aus den Stereokanälen der HRSC berechnet. Die Anaglyphen werden aus dem Nadirkanal und einem Stereokanal abgeleitet. Die schwarzweiße Detailaufnahme wurde dem Nadirkanal entnommen, der von allen Kanälen die höchste Auflösung zur Verfügung stellt.
The colour scenes have been derived from the three HRSC-colour channels and the nadir channel. The perspective views have been calculated from the digital terrain model derived from the stereo channels. The anaglyph image was calculated from the nadir and one stereo channel. The black and white high resolution image was derived from the nadir channel which provides the highest detail of all channels.
Das Kameraexperiment HRSC auf der Mission Mars Express der
Europäischen Weltraumorganisation ESA wird vom Principal Investigator Prof. Dr.
Gerhard Neukum (Freie Universität Berlin), der auch die technische Konzeption der
hochauflösenden Stereokamera entworfen hatte, geleitet. Das
Wissenschaftsteam besteht aus 40 Co-Investigatoren aus 33 Institutionen und zehn
Nationen. Die Kamera wurde am Deutschen Zentrum für Luft- und Raumfahrt (DLR) unter der
Leitung des Principal Investigators (PI) G. Neukum entwickelt und in Kooperation mit
industriellen Partnern gebaut (EADS Astrium, Lewicki Microelectronic GmbH und Jena
-Optronik GmbH). Sie wird vom DLR -Institut für Planetenforschung in Berlin-Adlershof
betrieben. Die systematische Prozessierung der Daten erfolgt am DLR. Die Darstellungen
wurden vom Institut für Geologische Wissenschaften der FU Berlin in Zusammenarbeit
mit dem DLR-Institut für Planetenforschung erstellt.
The High Resolution Stereo Camera (HRSC) experiment on the ESA Mars Express Mission is led by the
Principal Investigator (PI) Prof. Dr. Gerhard Neukum who also designed the camera technically. The
science team of the experiment consists of 40 Co-Investigators from 33 institutions and 10 nations.
The camera was developed at the German
Aerospace Center (DLR) under
the leadership of the PI G. Neukum and built in cooperation with industrial partners (EADS
Astrium, Lewicki Microelectronic GmbH and Jena-Optronik GmbH). The experiment on Mars Express
is operated by the DLR Institute of Planetary Research, through ESA/ESOC. The systematic
processing of the HRSC image data is carried out at DLR. The scenes shown here were created
by the PI-group at the Institute for Geological Sciences of the Freie Universitaet Berlin in
cooperation with the German Aerospace Center (DLR), Institute of Planetary Research, Berlin.
Download
hochaufgelöste Bilddaten / high resolution image data
Kontextkarte [2]: |
Farbkodiertes Höhenmodell [3]: |
Lagekarte der beschriebenen geologischen Strukturen [4]: |
Nadiraufnahme [5]: |
RGB Farbbild [6]: |
Rot-Cyan Anaglyphe [7]: |
Perspektive [1]: |
© Copyright: ESA/DLR/FU Berlin (G. Neukum)