Please enable JavaScript.

Coggle requires JavaScript to display documents.

Geography- Fieldwork - Coggle Diagram

- - - - Innacturate equipment or use could produce incorrect results
    - - Different times of the year will inflience results, creating problems with measurement
    - - Some approaches may create gaps or introduce bias
    - - Large variations in river channel depth, width and sediment characteristics can occur in areas close to eachother
    - - Fewer sites reduces quality
    - - Age and reliability may affect overall quality
    - - Smaller sample size usually means lower quality data
  - - - Mode
      - Range
      - Quartiles
      - Median
    - - Sketches
      - Photos
- - - - Used to show historic maps or lost sites
      - Useful for arial shots
        
        Rivers
        
        Land use
      - Shows how places have changed, or have been affected by storms
    - - Useful to highlight patterns or trends
      - Can be annotated and useful for indentifying anomalies
    - - Easy to compare patterns at specific locations
      - Consider using isolines or chloropleth maps
      - Used to show locations and patterns
    - - Wide range of graphs available
      - Can show patterns clearly
  - - - eg. grouping pebbles into sizes
      - Bar charts are good for representing this
    - - Can change over a period of time
      - eg. river gradients
    - - Easy to spot
      - Becomes a geographical display
- - - - Survey locations/sites- where and how will you collect data
      - Sample size- how many measurements are you taking
      - Accuracy- how will you ensure your data is accurate
- - - - Random
        
        Samples chosen at random
        
        eg. every pebble has an equal chance of selection
      - Systematic
        
        Working to a system
        
        eg. collecting every 50cm across the river
      - Stratified
        
        Deliberately introducing bias to ensure the sample addresses the question
        
        e. deluberately selecting pebbles of different sizes from a point in the river so a range of sizes are included in the sample
  - - - Written site descriptions
      - Taking photographs
        
        Think carefully about frame
        
        Where necessary, use an object such as a coin for scale when taking close-up pictures (such as river sediment)
      - Recording videos
      - Field sketches