Basics of Geospatial Technologies
GPS
Assigning location
Landscape Representation
Maps & representation
100

Computer-based mapping, analysis, and retrieval of location-based data.

What is a GIS (Geographic Information System)?

100

The term GPS came from this name used by the US Department of Defense who developed the first GPS system.

What is NAVSTAR GPS?

100

location-based data that are tied to specific real-world locations.

What is geospatial data?

100

The type of view that you get when you use the 'tilt' function in Google Earth that can also be found on some historic maps to give a birds-eye view of the area.

What is oblique view?

100

This process is used in representing elevation in order to make elevation change of topographic features more distinct and detectable to the human eye, often using a factor of 1.5X or 2X the original scale.

What is vertical exaggeration?

200

acquisition of data and imagery from the use of satellites and aircraft.

What is remote sensing?

200

This year was marked by the launch of the first GPS satellite.

What is 1978?

200

Data that is not directly linked to a geospatial location (such as tabular data).

What is non-spatial data?

200

The shape or configuration of the land that includes changes in elevation.

What is topography?

200

The lines on a map that connect points of equal elevation. This cartographic technique is used on the USGS 7.5 minute quad maps.

What are contour lines?

300

acquisition of real-time location information from a series of satellites in Earth's orbit.

What is Global Positioning System (GPS)?

300

GPS is maintained and run by this military branch at this location.

What is US Air Force at Schreiver Air Force Base in Colorado?

300

A software program that provides an interactive three-dimensional map of Earth. Google Earth is an example of this.

What is a virtual globe?

300

A hand-drawn technique that was used to depict changes in elevation and topography in historical maps.

What are hachures?

300

A type of thematic map in which areas are distinctly colored or shaded to represent classed values of some value or attribute (e.g. population by county, number of cholera deaths per department, etc).

What is a choropleth map?

400

digital images of Earth acquired by sensors on board space borne platforms.

What is satellite imagery?

400

A minimum collection of twenty four satellites orbiting in a specific pattern to maximize global GPS coverage.

What is a constellation?

400

This freely available virtual globe program was first released in 2005 by Google.

What is Google Earth?

400

Maps that provide a tactile three-dimensional view of the landscape by representing mountains as bumps and ridges on the map surface.

What are raised relief maps?

400

This scale of this type of map covers a smaller area of land in greater detail with less generalization as opposed to a map that covers a larger extent or area of land.

What is a large scale map?

500

Acquisition of imagery of the ground taken from an airborne platform.

What is aerial photography?

500
The three separate components that are necessary to find location on the ground with GPS.
What are space segment, control segment and user segment?
500

The process of connecting a spatial location or real world location to a photo.

What is geotagging?

500

A grid of square cells of fixed size (e.g., 10x10 meters) that cover the land surface wherein each cell stores an elevation value in addition to the x,y location information.

What is DEM (digital elevation Model)?

500

The real-world size or extent of the population of a study or the area of study.

What is observational or methodological scale?