Geography Reference
In-Depth Information
You will explore a dozen or so data sets.
8
Look over the following. The terminology won't mean much
to you at this point, but as you add these data sets to the map you can refer back to this list for more
detailed information.
A personal geodatabase (PGDB) named Kentucky_River_Area_Data containing two PGDB feature
datasets: Quadrangle_Data and Country_Streams, described here:
❏
Quadrangle_Data contains three vector-based PGDB feature classes:
❏
The soil types in the part of Fayette County that is covered by the Coletown
quadrangle: cole_soil_polygon.
❏
Geologic (surface rock) data in the Coletown triangle: cole_rock_polygon.
❏
A vector (line) PGDB feature class of the elevation contour lines for the COLE
quadrangle: cole_contours_line.
❏
County_Streams contains two vector (line) PGDB feature classes that have been derived
from TIGER/Line files:
❏
The streams of Fayette County, Kentucky: Fay_Tiger.
❏
The streams of Madison County, Kentucky: Mad_Tiger.
❏
A line
shapefile
containing a few features digitized from the Coletown, Kentucky Triangle:
cole_vctr.shp.
❏
A line
coverage
containing a few features digitized from the Ford, Kentucky quadrangle: FORD_VCTR.
❏
A
coverage
with both arc attribute table (AAT) and a polygon attribute table (PAT), showing the Kentucky
counties and county boundaries—that is, both the areas of the counties (polygons) and the lines that
separate them (arcs) are depicted: CNTY_BND_SPN.
❏
A digital raster graphics file scanned from the USGS Coletown topographic quadrangle:
COLE_DRG.TIF.
9
❏
A small orthophoto image: COLE_DOQ.TIF.
❏
A personal geodatabase named Lexington that contains a single, freestanding PGDB feature class:
❏
A set of line with labels showing Lexington-area vehicle transportation system, derived from the 2002
TIGER/Line files for Fayette County: Roads.
❏
8
None of the data names in Esri software is case-sensitive. That is FORD_VCTR is considered the same as ford_vctr.
However, blanks are not permitted in dataset names, nor in folders or in the paths to data set names. Dashes may also
cause problems in filenames but not folder names. Not knowing all this causes trouble at times.
9
A regular TIFF file that is used to portray geographic areas requires a separate world file that provides the geographic
coordinates of the TIFF. A GeoTIFFs, on the other hand, contains the relevant world file—it is embedded. ArcGIS
may use either setup, but not all software does. You may convert a GeoTIFF to a TIFF and a world file with and the
ArcToolbox conversion tool Raster To Other Format (multiple) (or the older ArcInfo command CONVERTIMAGE, if
you have access to that software).
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