Pds Geosciences Node Data Users Forum

[Susie Slavney]

This forum is for questions about using data from the PDS Geosciences Node archives. If you are not already familiar with the archives, it is best to start by exploring the Geosciences Node web site, pds-geosciences.wustl.edu, especially the pages Frequently Asked Questions and Help for Data Users. Anyone may post a question or an answer in this forum, although posts are moderated, and irrelevant or offensive posts will not be permitted. You must be logged in to submit a post; register here to get an account.

[devans-bye]

Hello,

 

I am a high school science teacher who is experimenting with remote sensing analysis. I have been searching for multispectral imagery of the surface of Mars that I can use for spectral analysis in ENVI. I would prefer images that are linearized and corrected for radiance and reflectance, but anything with more than three band would be great. I've been on the PDS site for hours with no luck. Can you please point me to a download page that has multispectral TIFF files or another format ENVI will recognize?

 

I really appreciate any help you could give me on this.

 

Best regards,

 

Dominique

[Susie Slavney]

Have you tried the Mars Reconnaissance Orbiter CRISM data sets? CRISM is the Compact Reconnaissance Imaging Spectrometer for Mars. In particular, the CRISM TRDR (Targeted Reduced Data Record) might suit your purpose.

 

Two ways to find CRISM data: 1. The Geosciences Node web page for CRISM is http://pds-geosciences.wustl.edu/missions/mro/crism.htm. 2. The Mars Orbital Data Explorer allows you to search the CRISM data sets by location, time, product ID, etc. (http://ode.rsl.wustl.edu/mars/).

 

The CRISM team uses ENVI, and has provided a CRISM Analysis Toolkit (CAT), a set of ENVI procedures for reading, displaying and analyzing data. The CAT toolkit is available from our CRISM page, the first link above. I recommend reading the CRISM TRDR data set description here as an overview: http://pds-geosciences.wustl.edu/mro/mro-m-crism-3-rdr-targeted-v1/mrocr_2108/catalog/trdr_ds.cat, and for more detail, parts of the CRISM Software Interface Specification (SIS), here: http://pds-geosciences.wustl.edu/mro/mro-m-crism-3-rdr-targeted-v1/mrocr_2108/document/crism_dpsis.pdf. The SIS is a big, complex document and you won't want to read it cover to cover.

 

Regards,

Susie Slavney