Learning Intentions zz how to draw a sketch map from an aerial photograph.
Drawing a sketch map of an aerial photograph is similar to drawing a sketch of an Ordnance Survey map. Follow these steps when drawing a sketch map: 1. Always use a pencil. Colouring pencils are useful when adding features.
2. Draw the frame, making sure it is the same shape as the photograph you are sketching. The photograph will be either portrait or landscape.
3. Measure the width of the photograph in centimetres and divide it by two. Then measure the height of the photograph and again divide it by two. These will be the dimensions of your frame.
4. Give your sketch map a title. This will be the name of the place you are drawing.
5. Divide both the photograph (see Figure 15.3) and sketch into eight sections. Use a marker for the photograph and a light pencil for your own sketch.
6. Draw in any physical features on the photograph like a river, lake, coastline or upland area. 7. Then draw the outline of the features you are asked to show and name them. 8. Place a key to the sketch outside the frame, labelling the features you have put in your sketch.
9. Keep your sketch simple. Only put in the features you are asked to put in. (Most of these will be land uses or functions that you learned about Chapter 7: Geography Skills 2.)
10. Be as neat as possible.
Example: On the next page is an aerial photograph of Cobh, and a sketch map based on it. The sketch shows:
• The coastline • A recreational area • A church • A residential area • A marina.
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Geographical Skills for Third Years: Ordnance Survey, aerial photograph and satellite imagery skills
