Specialized globes that show the Earth's su
GPS is used for navigation, mapping, and data collection
It can collect and display data in either 2 or 3-D
o 2D: Horizontal
o 3D: Horizontal + Elevation
It provides Absolute Location, which is useful in conjunction with paper
It can attach a
A good deal of map interpretation deals with identifying landforms that are
part of the lithosphere.
The Lithosphere - the land surface of the Earth (the dry land and not the
As opposed to the other earthly 'spheres'.
o Hydrosphere - The Earth's s
youtube - west wing change of maps
Thematic Maps: A particular class of maps which each emphasize a single
them, or a few related themes. (THEME-atic)
Qualitative Data - Data that shows differences in type, but not quantity
(land cover, zoning, soil type
Direction Finding & Compasses
Two kinds of direction reference systems
o 1) Egocentric - direction determined by the direction a person is
Drawbacks: relativity. Left and right are directions which
change based on the direction you're t
Map Test #2 Review:
Land partitioning parcels, tracts, and lots. Plats and plat books.
Land partitioning systems:
Metes and Bounds British system, irregular, used mostly on the East coast. Issues?
French Long Lots used in parts of the US that were once Fr
The Atmosphere & Biosphere in Maps
Another aspect of map interpretation deals with maps portraying
atmospheric conditions and the biosphere
The Atmosphere - The layer of air surrounding the Earth
The Biosphere - The realm of existence for plants, anima
Relief: The vertical differences across the Earth's surface
Terrain Surface: The Earth's surface with regard to elevation
Many maps disregard elevation data and only portray horizontal data.
These are called planimetric maps
Quantitative Data - numerical data that shows differences in quantity or
number (population density, rainfall, etc).
Quantitative data implies a magnitude message
Can be single-variable or multivariate, just like qualitative map
Counts and Measurements
Maps showing the Human Landscape help identify distinctive patterns in
Four factors represent the human impact on the landscape and can be
identified on maps.
o 1) Administrative factors
o 2) Technological factors
o 3) Cultural factors
Military Grid Reference System (MRGS)
Grid reference systems build on UTM and UPS grid systems
Meant to avoid excessively long coordinate designations in UTM/UPS
Each of the 60 zones is divided into 19 quadrilaterals covering 8 degrees latitude.