Geography Unit one

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What is meant by GIS?
GIS is a Geographical Information System - it is software tool that allows us to analyse and interpret information in different ways.
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Give 3 disadvantages of GIS
1.May require expensive software and a computer which needs keeping updated 2. Some software is complicated to use / may require training 3. if too many layers or data are added to a map it can be difficult to interpret
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Give 3 advantages of GIS
1. provides ability to show lots of information on one map 2.information can be linked together to help identify spatial patterns / support analysis of data 3.more and more people have access to GIS - e.g. i-phones etc.
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What does layering mean in context to GIS?
GIS enables large amounts of data to be shown on one map. Each data set represents a different layer which is superimposed on a map, so different layers can be switched on and off as required to add further detail to a map - e.g. a layer showing
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Give 2 ways in which GIS can be used in society
1. Emergency Services - ambulances use GIS to improve response time to identify where the nearest ambulance is to an emergency. A traffic map can help controllers make a decision on which ambulance to send, depending on how close and any traffic
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Give examples of human features that you could describe from a map
1.Land-use (i.e. residential, recreation, industrial etc.) 2.Communications (i.e. roads, railways etc.) 3. Settlement (inc. site, situation, shape (linear, nucleated etc.))
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Give examples of physical features that you could describe from a map.
Relates to natural features - so may include: - relief (shape of land - e.g. contour patterns, shape of land - e.g. valleys, height above sea level etc.) - Drainage (e.g. number of rivers, width, lakes, marsh etc.) - Vegetation - woodland, type v
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What is a Dispersed Settlement
Where individual buildings are spread out around an area
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What is a Linear Settlement?
Where buildings are located either side of a main road
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What is a nucleated settlement?
where buildings are grouped together (often at a crossroads or around a village green)
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What is the difference between an aerial photograph and an oblique photograph?
An aerial photograph is a photograph taken directly from above - i.e. a birds-eye view, whereas an oblique photograph is one taken from above, but from an angle
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What is meant by the site of a settlement?
This refers to the physical characteristics of the place and the land it is built on. S H A W L Slope; Height above sea level; Aspect (way slope faces); Water Supply; Land (e.g. floodplain)
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What is mean by the situation of a settlement?
The location of a place in relation to other places (e.g. 2 km northwest of the A428, or located on the south bank of the River Ouse) etc. Remember - P A R C Places (nearby Settlements); Accessibility; Relief (near hills etc.) Communications (e.
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What is meant by the shape of a settlement?
This is the form that the settlement takes. It can be dispersed, linear or nucleated.
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Other cards in this set

Card 2

Front

Give 3 disadvantages of GIS

Back

1.May require expensive software and a computer which needs keeping updated 2. Some software is complicated to use / may require training 3. if too many layers or data are added to a map it can be difficult to interpret

Card 3

Front

Give 3 advantages of GIS

Back

Preview of the front of card 3

Card 4

Front

What does layering mean in context to GIS?

Back

Preview of the front of card 4

Card 5

Front

Give 2 ways in which GIS can be used in society

Back

Preview of the front of card 5
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