Lab 8: Mapping - Review Terms and Concepts

 

contour line

 

contour interval

 

index contour

 

elevation contour

 

datum

 

sea level

 

topographic map

 

x,y,z data examples

 

x,y location

 

z value

 

locating a point

 

number line

 

linear interpolation

 

two points lie on a straight line

 

plane (planar surface)

 

three points lie in a plane

 

triangulation of scattered data points

 

triangulation with linear interpolation

 

parallel contours on planes

 

interpretation after linear interpolation

 

examples of scattered x,y,z data

 

grid (grid model)

 

grid node

 

advantage of grid

 

grid algorithm

 

color-filled contours

 

smooth slopes

 

hills

 

closed contours (closure)

 

ridges

 

saddles

 

noses

 

depressions

 

creeks and valleys

 

V-ing of contours at creeks

 

direction of flow from V-ing of contours

 

Bone Canyon location

 

Bone Canyon topography description

 

Bone Canyon topography elevation range

 

Apache Canyon location

 

Apache Canyon topography description

 

Apache Canyon topography elevation range

 

alluvial fan