Unit 1 Aphg

Map Scale

A way to represent the relationship between distances on a map and actual distances on the ground.

Large-scale maps

Maps that show a small area with a lot of detail, typically used for city or street maps.

Small-scale maps

Maps that cover a large area with less detail, such as world or regional maps.

Ratio scale

A representation of scale where, for example, 1:25,000 means 1 unit on the map corresponds to 25,000 units on the ground.

Written scale

A description of scale in words, such as '1 inch equals 1 mile'.

Graphic scale

A visual representation of scale, often depicted as a bar line on the map.

Projection

A method used to represent the curved surface of the Earth on a flat map.

Mercator Projection

A cylindrical map projection that preserves angles but distorts size near the poles.

Peters Projection

A map projection that maintains area accuracy but distorts shape and distance.

Equal-area projection

A projection that preserves the area of land masses but distorts shape and distance.

Robinson Projection

A compromise map projection that aims to reduce distortion in size, shape, and distance.

Geographic Grid

A system of intersecting lines (latitude and longitude) that helps in locating points on Earth.

Latitude

A measurement of distance north or south of the equator, expressed in degrees.

Longitude

A measurement of distance east or west of the Prime Meridian, expressed in degrees.

Cylindrical projections

Projections used for areas near the equator and the entire Earth, but with large distortions.

Conical projections

Projections that are less distorted at mid- and high latitudes than cylindrical projections.

Azimuthal projections

Projections that are good for areas near the poles.

Geographic Information Systems (GIS)

Software tools used to map, analyze, and visualize spatial data.

Global Positioning System (GPS)

A satellite-based navigation system that determines precise location coordinates.

Remote sensing

The use of satellite or aerial imagery to collect data about the Earth's surface.

Geographic data

Data associated with specific locations on the Earth's surface.

Access to Healthcare

The ability of individuals or populations to obtain needed medical services.

Environmental management

The process of overseeing and controlling human interaction with the environment.

Sustainability

The ability to use natural resources in a way that does not deplete or damage them.

Abiotic System

The nonliving components of an ecosystem, including elements such as water, air, soil, and minerals.