GIS/GPS/Maps

Question 1

projection

Answer 1

the process in which the 3D earth is converted to a 2D map

Question 2

Orthographic

Answer 2

gives the illusion of a 3D globe.

Question 3

mercator

Answer 3

all lines of latitude are the same length and distances apart increase away from the equator

Question 4

uninterrupted sinusoidal

Answer 4

top shaped

Question 5

Coordinate system

Answer 5

a method for describing the location of a point on the earth

Question 6

latitude

Answer 6

horazontal lines increaseing buy 15 degrees away from the equator

Question 7

Longitude

Answer 7

virtical lines going east to west of the prime meridian by 15 degrees

Question 8

Public Land Survey System (PLSS)

Answer 8

a grid based on principal meridians (N-S lines) and base lines (E-W lines) that form 6mi by 6mi squares

Question 9

townships

Answer 9

E-W rows

Question 10

Ranges

Answer 10

N-S columns

Question 11

Universal Transverse Mercator (UTM)

Answer 11

grid divides earth into 1200 segments, each containing 6 degrees of logitutde and 8 of latitude

letters are E-W rows
UTM zones are N-S columns

Question 12

Topographic maps

Answer 12

use contour lines to show landforms

Question 13

Aerial photos

Answer 13

photos taken from a plane and peiced together

Question 14

Landsat images

Answer 14

made by satllite using other light wavelengths (es)

Question 15

Digital elevation modles (DEM)

Answer 15

computer generated 3D views of landforms made from radar satelite elevation readings

Question 16

GIS (geographic information system)

Answer 16

analyzes spatial location data and organizes layers of information into visualizations using maps and 3D images