Mars Geologic Mapping GIS
version 1.2
For: Aeolis Dorsa (Equidistance Cylindrical, clon 0)
Mapper: Devon Burr 
2020

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Rationale and Intent:
This project has been compiled by USGS Astrogeology for use by NASA PGG-funded geologic mappers. Ultimately, versions of this DVD will be distributed to individual mappers near the start of their map projects.  In addition to the USGS-supplied base map, these DVDs will include only most recent datasets and project specific data sets (compiled and provided by the mapping team, as necessary).  We will include recommended mapping schemes, symbologies, attribute domains, and tutorials. The file geodatabase can be sent to USGS for periodic verification, as needed or requested by mapper. All mappers will start with this template. We will compile comments/concerns regarding this template. These will be presented and discussed at the annual Planetary Geologic Mappers' Meeting.

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1.) Unzip or copy folder to your hard drive

2.) optional - copy Mars Global DVD to hard drive
ftp://pdsimage2.wr.usgs.gov/pub/pigpen/mars/Global_GIS_Mars/
          
3.) Run "Aeolis_500K_Burr_10_8" or ÒAeolis_500K_Burr_10_1Ó from the root directory. Simple grid has been added to the Layout and there are three bookmarks for the scale (1:500,000 Layout, 1:500,000 Map, and Full Extent).

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If the ArcGIS project file "Aeolis_500K_Burr_10_8" or ÒAeolis_500K_Burr_10_1Ó ever becomes corrupted (a rarity), copy the original back from the archive.  TIP: It is good to save versions of your project through time.  That way, if one becomes corrupted (again, a rarity), you can revert to the most recent. Also, recall that the ArcMap project DOES NOT CONTAIN DATA...rather, it POINTS TO THE DATA.  Versioning your ArcMap project does not inherently create multiple versions of the data that the project displays.

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Please visit the PDS for image footprints. 
USGS's PILOT: http://pilot.wr.usgs.gov/index.php?view=downloads
Wash U's PDS ODE: http://ode.rsl.wustl.edu/mars/indextools.aspx (you will want the *c0a.zip files - clon=0).

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Project specific datasets are projected (meters).
Projection: Equidistant Cylindrical
            Central Meridian (clon) = -0 East
            Latitude_Of_Origin: 0.0
using the geographic coordinate system "Mars 2000 Sphere"
Major and minor axes are 3396190.0 m
This file is included in [folder] ... (*.prj)

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If you downloaded the Mars Global DVD from step 2 above:
Global raster datasets are projected (meters) from Global DVD.
Projection: Equidistant Cylindrical (Simple Cylindrical)
central meridian (clon) = 0
Standard parallel (clat) = 0
using the geographic coordinate system "Mars 2000 Sphere"
Major and minor axes are 3396190.0 m
This file is included in CoordinateSystems [folder] ... Mars2000 Equidistant Cylindrical clon0.prj

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If you downloaded the Mars Global DVD from step 2 above:
Nearly all vector datasets are unprojected (decimal degrees) from Global DVD.
Geographic coordinate system "Mars 2000 Sphere"
major and minor axes: 3396190.0 m
This file is included in CoordinateSystems [folder] ... Mars2000_sphere.prj

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File geodatabase contains six feature classes, as follows:
1.) GeoContacts_FINAL (polyline file)
2.) LinearFeatures_FINAL (polyline file)
3.) LocationFeatures_FINAL (point file)
4.) GeoUnits_FINAL (polygon file)
5.) GeoUnits_FINAL_Anno (annotation file)
6.) FigureLocation (polygon file)
7.) Annotation (annotation file)

These feature classes are grouped into “Mapping Layers” in the ArcMap project.  They are projected as MTM and should house all digitized map information.

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Symbols are applied to each of the included feature classes. These symbols are adapted from USGS Open File Report 99-430 (Digital Cartographic Standard for Geologic Map Symbolization). These can be viewed and downloaded at http://pubs.usgs.gov/of/1999/of99-430/

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To add/remove symbols, open ArcMap project, right-click the feature class of interest, click “Properties”, and click “Symbology” tab. Highlight the symbol to alter and then click “Remove” or double-click to alter.  Each feature class has an associated *.lyr file that houses the symbologies.  Click “import” on the “Symbology” tab and navigate to the appropriate *.lyr to return to the full symbol list.

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We suggest that all work is contained within the *_working folder. Create sub-folders as necessary to house relevant GIS data and map data. 

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Right-click on the file geodatabase and click the "DOMAINS" tab to see the attribute domains.  These can be altered, if required.

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Comments are encouraged in order to assimilate beneficial GIS-based tools, datasets, and mapping approaches for future mappers.

contact:
Jim Skinner
jskinner@usgs.gov

Trent Hare
thare@usgs.gov

Corey Fortezzo
cfortezzo@usgs.gov

Marc Hunter
mahunter@usgs.gov