Aerial Photographs JC
An aerial photograph is a view of the land surface taken from the air.
Vertical Aerial Photograph – Taken straight overhead
Oblique Aerial Photograph – Taken at an angle
Vertical Aerial Photo
It shows a view taken from directly above the landscape, with the camera pointing directly downwards at the ground
The dominant feature is the roofline of buildings
It does not show the horizon
The scale on a vertical aerial photograph is true throughout the whole photograph
When examining an aerial photograph it is possible to identify when, in terms of the time of year, the photograph was taken. Some of the evidence for determining time of year is as follows:
Summer: Fewer shadows on the ground, land has bright colours due to crops being ready for haravest, trees are in full foliage
Winter: There are long shadows on the ground as sun is low in sky, land has dark colours as ground is ploughed, and trees have lost foliage
Colours in Photos and What They Might Be
Green – Pasture/Grass
Dark Green – Forests/Trees
Yellow – Ripened Cereals Crops (Late Summer)
Brown/Black - Ploughed Fields (Spring)
Blue/Silver - Rivers or Lakes
Grey – Roadways
A Variety of Colours – Cereal Crops
Identifying Buildings in Aerial Forms
Housing – An organised pattern of white biuldings (housing estate)
Church – Usually in the shape of a cross (if Catholic) or has a steeple
Hospital – Helipad on Roof
Stadium – Oval or Circle in shape with a green patch in the middle
School – Playground is sometimes middle
Shops/Supermarkets - Large building with a car park OR colourful shopfronts along a street (CBD) CBD – Central Business District
Factory – Large building with heavy machinery visibe/corrugated roof
Harbour – A long grey line extending out to sea with boats moored off it
Beach – Strip of yellow beside the sea