dc.contributor.author
Michael, Greg G.
dc.contributor.author
Tirsch, Daniela
dc.contributor.author
Matz, Klaus-Dieter
dc.contributor.author
Zuschneid, Wilhelm
dc.contributor.author
Hauber, Ernst
dc.contributor.author
Gwinner, Klaus
dc.contributor.author
Walter, Sebastian H.G.
dc.contributor.author
Jaumann, Ralf
dc.contributor.author
Roatsch, Thomas
dc.contributor.author
Postberg, Frank
dc.contributor.other
Walter, Sebastian H.G.
dc.contributor.other
Postberg, Frank
dc.date.accessioned
2023-09-22T11:35:22Z
dc.date.available
2023-09-22T11:35:22Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/40903
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-40624
dc.description
Colour images of Mars are strongly affected by the planet’s varying atmospheric scattering
such that colour shifts between images may be comparable in magnitude to the actual surface
colour variation within an image. The processing of this product addresses this problem by
making use only of relative colour information within single images, used iteratively to derive
a global colour model, offering absolute colour brightness estimates at all locations (Michael
et al, in review).
The current processing iteration uses around 90 images with pixel scales greater than 200 m,
selected for minimal influence of atmospheric dust while clipping out any significant areas of
cloud, and processed to 2 km/pixel. There remain a small number of coverage gaps which we
hope to fill during the 2023-2026 mission extension.
dc.description.abstract
A high-altitude observation campaign with the Mars Express High Resolution Stereo Camera
was used to construct five global mosaics of Mars from images captured through each of its
five different spectral filters: panchromatic, red, green, blue and infra-red.
The substantial overlaps of high-altitude images enable the calculation of a global colour
model yielding mosaics which both retain long range colour information and maintain high
relative colour accuracy. The mosaics are currently processed at 2 km/pixel.
en
dc.publisher
Freie Universität Berlin
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
High Resolution Stereo Camera
en
dc.subject
Mars Express
en
dc.subject
Global mosaic
en
dc.subject.ddc
500 Natural sciences and mathematics::520 Astronomy and allied sciences::523 Specific celestial bodies and phenomena
dc.title
A global colour mosaic of Mars from high altitude observations
dc.contributor.type
project_leader
refubium.affiliation
Geowissenschaften
refubium.affiliation.other
Institut für Geologische Wissenschaften / Fachrichtung Planetologie und Fernerkundung
refubium.funding.project
This work has been supported by the German Space Agency (DLR Bonn) grant 50OO2204 (Koregistrierung) on behalf of the German Federal Ministry for Economic Affairs and Climate Action.
refubium.isSupplementTo.doi
https://doi.org/10.48550/arXiv.2307.14238
refubium.isSupplementTo.doi
https://doi.org/10.1016/j.pss.2006.12.003
refubium.isSupplementTo.doi
https://doi.org/10.1016/j.pss.2016.02.014
refubium.isSupplementTo.doi
https://doi.org/10.1016/j.pss.2015.12.002
refubium.note.author
The high altitude images used were level 3 HRSC data products up to image hn091_0000.
Those which are already released can be found here:
https://archives.esac.esa.int/psa/ftp/MARS-EXPRESS/HRSC/MEX-M-HRSC-3-RDR-V3.0/
_________________________________________________________________________
refubium.note.author
It is appreciated if use of the dataset is acknowledged by citing:
G. G. Michael, D. Tirsch, K.-D. Matz, W. Zuschneid, E. Hauber, K. Gwinner, S. H. G. Walter, R. Jaumann, T. Roatsch, F. Postberg. A global colour mosaic of Mars from high altitude observations (in review)
https://doi.org/10.48550/arXiv.2307.14238
_________________________________________________________________________
refubium.note.author
This work was supported by the German Space Agency (DLR Bonn) grant 50OO2204 (Koregistrierung) on behalf of the German Federal Ministry for Economic Affairs and Climate Action."
_________________________________________________________________________
refubium.note.author
Credit for HRSC data: ESA/DLR/FU Berlin (CC BY-SA 3.0 IGO)
dcterms.accessRights.openaire
open access
