Search Publications
A new topographic image atlas of Phobos
Oberst, J.; Scholten, F.; Matz, K. -D. +6 more
Phobos flyby images obtained by the High Resolution Stereo Camera (HRSC) and the Super Resolution Channel (SRC) onboard the Mars Express spacecraft were used to produce a global Digital Terrain Model and orthoimage mosaics. We derived a set of Phobos topographic image maps, which are combined into an atlas that consists of four quadrangles on thre…
Evidence for multiple ice deposits on the northeastern rim of Hellas basin, Mars
Neukum, G.; Ivanov, M. A.; Korteniemi, J. +3 more
Four prominent fluvial systems, Dao, Niger, and Harmakhis Valles, and a system of smaller channels between Niger and Harmakhis Valles characterize a wide topographic trough that connects Hesperia Planum and Hellas Planitia (Hesperia-Hellas trough, HHT). The source depressions of the canyons of Dao and Harmakhis Valles are at the lowermost level (a…
An assessment of surface matching for the automated co-registration of MOLA, HRSC and HiRISE DTMs
Muller, Jan-Peter; Lin, Shih-Yuan; Mills, Jon P. +1 more
Martian topographic data has been collected by various exploration missions over the last decade. These products provide detailed topographic information and are invaluable for scientists to interpret and understand the geological and climate evolution which has occurred on Mars. In order to fully utilise these multi-sensor, multi-resolution and m…
Confident thickness estimates for planetary surface deposits from concealed crater populations
Neukum, G.; Platz, T.; Michael, G. G.
An improved technique is presented to determine more accurately deposit thicknesses of any surface units using crater size-frequency distributions (CSFDs). This new approach enables thickness estimates of deposits that completely cover their underlying unit, i.e., where no flooded craters are observed. Here, the crater populations of the unit of i…
Structural analysis of interior layered deposits in Northern Coprates Chasma, Mars
Hauber, E.; Gwinner, K.; McGuire, P. C. +5 more
Interior layered deposits within an embayment on the northern wall of Coprates Chasma in the Valles Marineris, Mars, are studied using HRSC, CTX, HiRISE and CRISM data. The layered material outcrops in three separate locations. The largest layered deposit within the embayment, a free standing central mound, has an approximate stratigraphic thickne…
3D structure of the Gusev Crater region
Neukum, Gerhard; Foing, Bernard; Kneissl, Thomas +3 more
Gusev Crater lies within the Aeolis Quadrangle of Mars at the boundary between the northern lowlands and southern highlands. The ancient valley Ma'adim Vallis dissects the highlands south of Gusev Crater and is thought to have fed the crater with sediments. High Resolution Stereo Camera data and Digital Elevation Models were used to construct a ge…
Late-stage water eruptions from Ascraeus Mons volcano, Mars: Implications for its structure and history
Williams, David A.; Muller, Jan-Peter; Murray, John B. +4 more
Ascraeus Mons was one of the first of the Martian volcanoes to be imaged by the High Resolution Stereo Camera (HRSC) experiment onboard the ESA Mars Express spacecraft. These images show much of the volcano at a higher resolution than previously, and details of its lava flows, sinuous rilles, flank vents and tectonic features indicate an unexpecte…
Martian Cratering 10. Progress in use of crater counts to interpret geological processes: Examples from two debris aprons
Werner, Stephanie C.; Hartmann, William K.
Recent controversies about systems of crater-count dating have been largely resolved, and with continuing refinements, crater counts will offer a fundamental geological tool to interpret not only ages, but also the nature of geological processes altering the surface of Mars. As an example of the latter technique, we present data on two debris apro…
Surface-compositional properties of the Malea Planum region of the Circum-Hellas Volcanic Province, Mars
McCord, Thomas B.; HRSC Co-Investigator Team; Greeley, Ronald +10 more
We used Thermal Emission Spectrometer (TES), Thermal Emission Imaging System (THEMIS), High-Resolution Stereo Camera (HRSC), and Observatoire pour la Minéralogie, l'Eau, les Glaces et l'Activité (OMEGA) data to assess the physical and compositional properties of the Malea Planum portion of the Circum-Hellas Volcanic Province (CHVP). Our analysis o…
Optical depth and its scale-height in Valles Marineris from HRSC stereo images
Keller, H. U.; Grieger, B.; Hoekzema, N. M. +4 more
We measured the optical depth of the Martian atmosphere as a function of altitude above two opposing scree walls of the Valles Marineris, from stereo images that were taken with the High Resolution Stereo Camera (HRSC) of Mars Express on June 3, 2004, during orbit 471. The optical depths were measured from contrast differences between the stereo i…