Podcast
Questions and Answers
What are the four basic characteristics of a map that can be distorted by different map projections?
What are the four basic characteristics of a map that can be distorted by different map projections?
- Volume, mass, pressure, temperature
- Height, longitude, latitude, contour
- Distance, direction, shape, area (correct)
- Curvature, scale, size, density
Which science is dedicated to the study of the shape and size of the Earth?
Which science is dedicated to the study of the shape and size of the Earth?
- Geography
- Geology
- Geodesy (correct)
- Geometry
Which model or reference surface approximates the shape of the Earth using gravity field?
Which model or reference surface approximates the shape of the Earth using gravity field?
- Equator
- Geoid (correct)
- Cylinder
- Ellipse
Which of the following is used as a reference for measuring elevations and depths?
Which of the following is used as a reference for measuring elevations and depths?
Which type of projection uses mathematical equations to transform globe coordinates to a flat surface?
Which type of projection uses mathematical equations to transform globe coordinates to a flat surface?
What is a datum in cartography used for?
What is a datum in cartography used for?
Which angular coordinate system does the UTM coordinate system use as its basis?
Which angular coordinate system does the UTM coordinate system use as its basis?
How is the orientation of the cylinder changed in map projections to create relatively undistorted regions?
How is the orientation of the cylinder changed in map projections to create relatively undistorted regions?
In the context of UTM coordinates, what does 'northing' refer to?
In the context of UTM coordinates, what does 'northing' refer to?
What is the purpose of a Digital Elevation Model (DEM)?
What is the purpose of a Digital Elevation Model (DEM)?
In the Universal Transverse Mercator (UTM) coordinate system, how are the zones numbered?
In the Universal Transverse Mercator (UTM) coordinate system, how are the zones numbered?
What is the shape of the Earth approximated by using an oblate ellipsoid as a reference datum?
What is the shape of the Earth approximated by using an oblate ellipsoid as a reference datum?
What transformation occurs during a map projection in converting Earth's curved surface to a flat surface?
What transformation occurs during a map projection in converting Earth's curved surface to a flat surface?
Which type of projection is characterized by a two-dimensional reference surface used to convert locations from a curved surface to a flat surface?
Which type of projection is characterized by a two-dimensional reference surface used to convert locations from a curved surface to a flat surface?
What is the main purpose of using an oblate ellipsoid as a datum for the Earth?
What is the main purpose of using an oblate ellipsoid as a datum for the Earth?
In map projections, what do tangency and secancy refer to?
In map projections, what do tangency and secancy refer to?
Why is an oblate ellipsoid considered a suitable reference datum for the Earth?
Why is an oblate ellipsoid considered a suitable reference datum for the Earth?
