Geoscience Reference
In-Depth Information
Fig. 2 Globe representation of Mars centered on the case study region of interest in Noachis Terra
(black rectangle, centered around 30
S). The background data is color-coded MOLA data
(white is high elevation, light blue is low elevation). The red lineaments are the extensional
grabens, mapped by Knapmeyer et al. (
2006
) as part of a global structural mapping campaign
using MOLA data. The yellow polygons indicate localities with a basaltic spectral shape (redrawn
from Rogers and Nazarian
2013
)
°
E, 30
°
2 Data and Methods
MRO CTX and CRISM data are both freely available from the NASA Planetary
Data System (PDS) website (
pds.nasa.gov
). Both datasets need to be further pro-
cessed before analysis can be performed. CRISM data is normally processed using
the CRISM Analysis Tools (CAT) plugin (Seelos et al.
2011
) for the Exelis VIS
IDL/ENVI software. IDL/ENVI and CAT were installed on PlanetServer (Oosthoek
et al.
2013
). 1751 (total 674 GB) Targeted Reduced Data Records (TRDR)
hyperspectral data and 70 (total 29 GB) Multispectral Reduced Data Records
(MRDR) multispectral data were batch processed, encompassing noise removal,
atmospheric correction and geo-referencing. The processed TRDR data were added
to the rasdaman database on PlanetServer. The MRDR data were further processed
into summary products (Pelkey et al.
2007
) and added to ArcGIS for of
ine use.
CTX data is provided as Experiment Data Record (EDR) data, comparable to
raw (level 0) Earth Observation (EO) data, which need to be further processed by
the Integrated Software for Imagers and Spectrometers v3 (ISIS3) software (Gaddis
et al.
1997
; Keszthelyi et al.
2013
). ISIS3 and GNU parallel (Tange
2011
) were
installed on the Jacobs University Bremen Computational Laboratory for Analysis,
Modeling and Visualization (CLAMV)
fl
'
blackpearl
'
HPC cluster enabling
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