Geog Skills Section 4

Geog Skills Section 4

1. Mapping Techniques

   • Choropleth Maps
     • Density maps where areas are shaded in to represent the average number of people
     • Positives
       • Immediate visual impact, easy to interpret
     • Negative
       • Cant extract exact data for one place
       • choice can affect impact
   • Dot Maps
     • Positives
       • If you have other info available, data can be placed accurately
       • Visual
       • Quick and easy to conduct
     • Negatives
       • Choosing dot value is important
       • Too many dots can be confusing

2. Mapping Movements

   • Composite Bars
     • Positives
       • Proportionally representative shows direction
       • Easy to understand
     • Negative
       • May not represent whole area
       • Correct scale needs to be used
   • Flow lines
     • Positives
       • A simple proportional scale is used
     • Negatives
       • May not represent whole area
       • Scale may not be accurate
   • Desire Lines
     • Positives
       • Simple and easy to understand
       • Can have a lot of data
       • Easy to analyse
     • Negatives
       • Can be crowded

3. Qualitative Presentation

   • Sketches
     • Negatives
       • Subjective - only some aspects are selected
       • Relies heavily on the sketchers understanding of the topic
     • Positives
       • Can select relevant info
       • Helps put investigation into context
   • Annotated Photos
     • Negatives
       • Subjective
     • Positives
       • Accurate and precise and also represents the area more

4. Other ways of presenting data

   • Logarithmic graphs
   • Kite diagrams
   • Polar Graphs
   • Triangular graph
   • Dispersion graph