[[maps]]

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maps [2012/10/05 07:32]
admin [Thematic Maps]
maps [2018/03/06 08:59] (current)
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 ==== Thematic Maps ==== ==== Thematic Maps ====
 A thematic map is used to demonstrate one or more characteristics of a region. An example of a thematic map most people are likely familiar with is an election map; we've all seen them on news sites and TV: democratic states are blue, republican states are red, and so on. This map is not particularly useful in getting around within a geographic region, but it can convey information (in this example, electoral statistics) much faster than a table or chart might. These maps are incredibly dynamic and can convey many different types of information in many different ways. To put it simply: if it's a characteristic that can be attributed to a geographic region, it can be expressed on a thematic map! A thematic map is used to demonstrate one or more characteristics of a region. An example of a thematic map most people are likely familiar with is an election map; we've all seen them on news sites and TV: democratic states are blue, republican states are red, and so on. This map is not particularly useful in getting around within a geographic region, but it can convey information (in this example, electoral statistics) much faster than a table or chart might. These maps are incredibly dynamic and can convey many different types of information in many different ways. To put it simply: if it's a characteristic that can be attributed to a geographic region, it can be expressed on a thematic map!
- +{{ :lab3.png?600 |}}
-{{:​lab3.png?​200 |}}{{ :​lab5.png?​200|}} +
-Example thematic maps I made in a cartography class, Spring 2011. Click for larger versions.+
 ===== Where to Get Maps ===== ===== Where to Get Maps =====
 The type of map you are looking for depends a lot on where you can find it. The maps I use most when "in the field" so to speak (hiking, [[camping]],​ [[geocaching]],​ etc) are USGS 1:24k quadrangles. These are very large scale maps that show a tremendous amount of detail. The tradeoff is that they only show a relatively small area - 6 by 9 miles. That said, the vast majority of the contiguous United States is covered by these maps - and the USGS has them all available as GeoPDFs for free download! They can be found [[http://​store.usgs.gov/​b2c_usgs/​usgs/​maplocator/​(xcm=r3standardpitrex_prd&​layout=6_1_61_48&​uiarea=2&​ctype=areaDetails&​carea=%24ROOT)/​.do|here]],​ with the USGS MapLocator tool. The type of map you are looking for depends a lot on where you can find it. The maps I use most when "in the field" so to speak (hiking, [[camping]],​ [[geocaching]],​ etc) are USGS 1:24k quadrangles. These are very large scale maps that show a tremendous amount of detail. The tradeoff is that they only show a relatively small area - 6 by 9 miles. That said, the vast majority of the contiguous United States is covered by these maps - and the USGS has them all available as GeoPDFs for free download! They can be found [[http://​store.usgs.gov/​b2c_usgs/​usgs/​maplocator/​(xcm=r3standardpitrex_prd&​layout=6_1_61_48&​uiarea=2&​ctype=areaDetails&​carea=%24ROOT)/​.do|here]],​ with the USGS MapLocator tool.
maps.txt · Last modified: 2018/03/06 08:59 (external edit)
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