LAB 7 Joining Data with North & South Dakota
The map below is a representation of US counties with study areas of North and South Dakota along with three other states chosen as a shape file process in Esri.
The projection chosen for this map is the NAD 1983 State Plane for North Dakota because the coordinate system is designed for the specific region of North Dakota. North and South Dakota are longer in the east west direction therefore the Lambert Conformal Conic was used.
A .xls file is a file extension for a spreadsheet file format created by Microsoft for use with Microsoft Excel.
Selecting by attribute is selecting geographic features in GIS, which contains non-spatial information that is usually stored in a table and linked to the feature by a unique identifier.
A field is a column in a table that stores the values for a single attribute.
A record is a set of related data fields, often a row in a database, containing all the attribute values for a single feature.
An attribute is non-spatial information about a geographic feature in a GIS, usually stored in a table and linked to the feature by a unique identifier.
A relational Database is a data structure in which collections of tables are logically associated with each other by shared fields.
The field calculator allows you to calculate area, length, perimeter, and other geometric properties on fields in attribute tables.