Digital Terrain Representation

A data file or structure representing a generally rectangular grid of pixels(cells)

• Geographic Files

• Geologic Data

• Raster Data

• Topographic Data

Vector data is XYZ data that typically represent these features

An example of a Raster surface, but are specifically focused on one attribute: Elevation

Which two classes can digital elevation models be broken into?

• Digital Topographic Model

• Digital Terrain Model

• Digital Imaging Model

• Digital Surface Model

Refers to the dimension of the cell size that represents the area covered on the

ground. Thus in an image with a resolution 5 meters, each pixel would 5x5 m.

• Digital Resolution

• Spatial Resolution

• Cosmic Resolution

• Spatial Data

What is the objective of Shuttle Radar Topography Mission (SRTM)

A form of vector-based digital geographic data and are constructed by

triangulating a set of vertices (points).

• Triangular

  Irregular Network (TIN)

• Topographic Data

• Triangular Organizational Data (TOD)

• Spatial imaging

What does the acronym LADS stand for?

What does the acronym LIDAR stand for?

What kind of coverage allows for construction of a Digital Elevation model (DEM)?

• Aerial Coverage

• Obtuse Coverage

• Ground coverage

• Stereo Coverage