ArcGIS Project Read-Me

The map documents and shapefiles used to create the trackline maps
provided on this disc can be found in the 90KI1_91KI2.zip file located in the ARC
subfolder of the GIS folder located at the top level of the disc.
The map documents were created with ESRI ArcGIS 9.2 software.  Shapefiles 
may also be viewed with other versions of ArcView, ArcGIS, or public domain 
software ArcExplorer (http://www.esri.com/software/arcexplorer/index.html). 
	
The map documents (.mxd) were named 90KI1_91KI2_Study Area, 90KI1_91KI2, 90KI1_Detail, 
90KI1_1_Detail, 90KI1_2_Detail, 91KI2_Detail, 91KI2_A_Detail, 91KI2_B_Detail, and 
91KI2_C_Detail.  Detail maps display trackline navigation, and the inset maps also 
display points for start of line, start of segment, and annotated navigation shots.

The list below describes the shapefiles provided with the ArcGIS project.
Metadata are available as XML documents (used by ArcCatalog).

90KI1 and 91KI2_FIRST:
point layer of the start of 90KI1 and 91KI2 tracklines.

90KI1 and 91KI2_LINES:
line layer of 90KI1 and 91KI2 tracklines.

90KI1 and 91KI2_POINTS:
point layer of 90KI1 and 91KI2 annotated navigation shots.

90KI1 and 91KI2_SEGMENT:
point layer of the start of 90KI1 and 91KI2 trackline segments.

CI_87_CORES_federal:
point file of CI-87 vibracore locations in federal waters.

BASEMAPS.usa_bathy_gulfmexico:
line layer of contour intervals for Northern Gulf of Mexico and Northern Bahamas 
bathymetry data. The contour interval is 100 m with supplemental 20-meter
contours on the continental shelf. Originated by NOAA, date unknown. 

Gulf Coast Towns:
point locations for selected cities in States bordering the Gulf of Mexico.
Derived from usa_cities_100k point file originated by ESRI, 2000.

Gulf_States_Shoreline:
polygon layer of the Gulf States shoreline derived from a 1:70,000 vector 
coastline map of the United States. Originated by NOAA, 1994.