Acquiring GIS Data: Utah

Exercise Setup:

Introduction:

Data Storage and Format:

Data types for ArcMap:

Internet:

Finding data:

Metadata:

SGID folder prefix:

Scale:

Quadrangle Index files:

Quadrangle Index file- vertical relationship:

Ohio codes (1:24k quadrangles):

AGRC quad names:

Descriptive/ Legal Name for Quadrangles:

AGRC SGID GIS data file naming convention:

Finding Data with the SGID:

Download files with the SGID:

Additional methods for finding data on the AGRC site:

Status Update:

Renaming & Choosing a file name:

ESRI coverage:

Importing an E00 Interchange file:

Importing an E00 with ArcView 3.x:

Importing an E00 with ArcToolBox (batch mode):

Importing an E00 with Arc/Info command line:

Exercise with ArcMap:

Data types for ArcMap:

There are enormous amounts of GIS data available and there are multiple ways of access. GIS data, as stated above, come in a variety of formats. Let’s take a few minutes and use the GIS software help files to get a listing of the available data types.

Start ArcCatalog, choose the help menu then the item ‘ArcGIS Desktop help’. Make sure the contents tab is active in the help dialogue box. You will see, about third from the top of the list, an item entitled ‘Data types supported in ArcGIS.’

Results: ( ArcCatalog_help_datatypes )

Choose this option, you will be presented with a listing of supported data types that can be used in the ArcGIS environment.

The table is broken into three sections:

1) Data types supported in ArcGIS (ArcView^®, ArcEditor™, and ArcInfo™)

2) Additional data types supported via importers in ArcInfo

3) Additional data types supported via importers in ArcView and ArcEditor

The following is a list of the most commonly used data types and (a few examples):

Vector (i.e. roads, streams, parcels, country state county or city boundaries, etc.)

Shapefiles ESRI – points, lines or polygons with no topology

ArcInfo coverage ESRI – feature with topology

Geodatabase ESRI - new Object oriented feature

DWG & DXF AutoCAD drawing file & drawing interchange file