Geog 1 - Lecture 3 : Maps, Projections, Latitude, Longitude, and Time Zones

Define Map Projection

The reduction of a globe onto a flat surface

Define Mercator Projection

A cylindrical projection that preserves angles and shapes perfect for navigation but distorts size of landmasses (near the poles making then seem larger)

Define Gall-Peters Projection

An equal area projection that preserves area, but shape is heavily distorted

Define True Shape

The correct configuration coastlines mainly useful for navigation but distorts area

Define Equal Area

Indicates the equivalence of all areas on the surface of the map but distortions shape

What are the different ways in which maps are political?

• Neutrality is impossible

• can create biases

What was the rational for how time zones were created?

Trains

How are coordinates determined in maps?

Latitude (N/S), Longitude (W/E)

The longitudinal lines that run North-South are known at the ___

Meridians

The longitudinal line that represents 0° is the ___

Prime Meridian

The latitudinal lines that run east-west are known as ___

Parallels

The latitudinal line that represents 0° is the

Equator

What is the coordinate for #1

15°N, 30°E

What is the coordinate for #4

0°N (or S), 60°W

What is the coordinate for #8

45°N, 0°E (or W)

What is the coordinate for #9

30°N, 90°E

The longitudinal line that represents 180° is the ___

International Date Line

Flying West across IDL causes ___

Going ahead 1 day

Flying East across IDL causes ___

Going back 1 day

Define Greenwich Mean Time

Formal world standard time now reported as Coordinate Universal Time (CTU)