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GIS Concepts

Across
The degree or closeness to which the information on a map matches the values in the real world.
An isoline on a map joining points of equal height above or below sea level.
Information that describes the content, quality, condition, origin, and other characteristics of data or other pieces of information.
The hypothetical shape of the earth based upon the model of the surface of the oceans under the influence of Earth's gravity and rotation alone absent of winds, tides or other influence - coinciding with mean sea level and its imagined extension under (or over) land areas.
A systematic transformation of the locations on the surface of a sphere or an ellipsoid into locations on a plane. (3D to 2D)
DBase file format extension used in shapefiles storing tabular information (can be opened in Excel).
In imagery it describes the number of bands, the level of detail or the currency of the raster data.
a mathematically defined surface that approximates the geoid, the truer figure of the Earth.
A system that assigns a number to a characteristic of an object or event, which can be compared with other objects or events.
A data model using points, lines and polygons to represent discrete boundaries or locations.
The shortest distance between any two points on a sphere (2 words-nospace).
A collection of geographic datasets of various types held in a common file system folder, a Microsoft Access database.
A numbering system used to indicate the position of a point, line, or plane.
Height above a given level, especially sea level.
Down
a series of numbers that define the shape and size of the ellipsoid and it's orientation in space. Chosen to give the best possible fit to the true shape of the Earth in a specific area.
Ratio of Map Distance to Ground Distance in the real world.
Conformal projection using a 2-dimensional Cartesian coordinate system to give locations on the surface of the Earth. It is not a single map projection. The system instead divides the Earth into sixty zones, each being a six-degree band of longitude, and uses a secant transverse Mercator projection in each zone.
Profession that produces legal documents for the transfer of real property.
a set of 124 geographic zones or coordinate systems designed for specific regions of the United States.
Non-topological traditional data type used in earlier ArcGIS platforms.
ESRI application providing a window that is used to organize and manage various types of geographic information.
A data model consisting of a matrix of cells (or pixels) organized into rows and columns (or a grid) where each cell contains a value representing information, such as temperature or digital aerial photographs.
A network of longitude and latitude lines that relates points on a map to their true locations on the spherical earth