EO M122.01: Identify Types of Maps :)

EO M122.01: Identify Types of Maps :)

By WO Pritchard

​Objective and Importance

TP 1: The Purpose of a M​ap

Open Ended

What do you think the purpose of a map is?

​The Purpose of a map

• ​Display information

• ​Scale

• ​Representation of an area

• ​Identify landmarks

• ​Reflect the needs of the user

Open Ended

The purpose of a map is to present a picture of what?

The answer...​

"​The Ground as it exists"

​TP 2: Describe Various Types of Maps

​Topographical

​This type of map is commonly used by the military

• The purpose of a topographical map is to present a picture of the ground as it really exists

• Topographical maps show as much detail as the scale allows; generally 1:25 000, 1:50 000 or 1:250 000

​Orienteering Map

​- Through the international orienteering federation (IOF) specific rules and standards have been set for the production of these maps (colour, symbols and scales)

Much more detailed than regular topographical maps, both with reference to vegetation and landforms

​Street and Road map

​- Street and road maps are designed to assist commuters and tourists to locate key sites such as roads, highways, police stations, fire halls, hospitals, schools and parks

​Relief Map

• Relief maps are a three-dimensional representation usually of terrain

• The terrain elevation is usually exaggerated by a factor between 5 and 10

• This helps to visually recognize the terrain features

Digital Map

• Digital maps, such as those found on computer programs and when a GPS, are useful as reference tools as they are updated regularly

• This allows for more accurate reference

Political Map

• Shows countries, provinces or other political borders

Statstical Map

Show statistical information such as the production levels of corps or minerals across a country

Outline Map

• Only show borders, rivers and coastlines

Air Photo Map

Air photo maps are actual pictures used in reconnaissance or to create many of the maps previously listed

Multiple Choice

What type of map is used by the military?

• Statistical

• Topographical

• Street and Road

• Orienteering

Multiple Choice

Orienteering maps are similar to, though more detailed with references to vegetation and landforms than, what other types of maps?

• Statistical

• Topographical

• Street and Road

• Orienteering

Open Ended

What is a street and road map used for?

Care of Topographical maps

​Care of the map

• Some maps being produced are already waterproof

• Most maps are printed on normal paper

• Paper maps are expensive and easily damaged

• You must take precautions to protect them from water, dirt and wind

• When maps become exposed to water, it will become soggy deteriorate and tear 

​Waterproofing a map

• Preparing a map for the elements is a vital step to prolong the life of a map

• Ways to prepare a map by waterproofing include…

  • Zipperbag method

  • Contact paper (maptac)

  • Chemical Coating ​

​Drying a map + Opening a map + Writing on a map

• If a map gets wet, let it completely on a flat clean surface

• ​

• A map should never be fully opened in strong wind, it should be opened to the area in use

• It should also be folded along the original fold lines

  ​

• Use only pencil marks on a map and erase markings gently 

• Maps that are protected by plastic can be marked using grease pencils or fine-tipped markers​

​Storing a map

Maps should be stored in a dry place, rolled, folded or laid flat

Open Ended

What are three things we should protect maps from?

Open Ended

 What can we use to write on maps

Open Ended

How are maps stored?

How to Fold a map

Steps

• Lay the map face up, then fold the map in half by bringing the top (north) of the map sheet down to the bottom (south) of the map sheet. Crease where the bend in the map has occurred; this is the centre of the map (see Figure 1, Step 1).

• Fold the top half of the map sheet into half again, then turn the map over and fold the bottom half to match the top half (see Figure 1, Step 2).

• Fold the ends of the map into half from left to right (see Figure 1, Step 3).

• Fold each of the open ends back into half again so that the map name and index to the adjacent map sheet appear on the outside (the map should look like the letter M). (see Figure 1, Step 4).

Open Ended

: What are some of the common maps discussed during this lesson?

Open Ended

How do you dry a met when it gets wet?

Closing Statements