Sunday, February 17, 2013

Proportional Circles Map


https://www.e-education.psu.edu/natureofgeoinfo/book/export/html/1553

Proportional cirlce maps are used to represent the value of particular data set in a certain area. In this case, each dot represents the Hispanic population in each state based on the how many Hispanics there are. For instance, the larger the dot, the larger the population.

Dot Distribution Map


https://www.census.gov/geo/www/mapGallery/2kpopden.html

Dot distribution maps are used to represent different quantitave data found in particular areas. In this case, each dot represents 7,500 people. The map is used to represent population distribution across the United States based off of the year 2000 Census.

Propoganda Map


http://kuoest.wordpress.com/

Propoganda maps use distortion of scale and boundaries to help persuade people to particular views. This is an example of a Propoganda map because it uses distortion to help persuade people towards a particular geopolitical view. This is how Ronald Reagan saw the world during the Cold War, and I think its interesting how Taiwan is made as large as China and that Japan is in the shape of a car.

Sunday, February 10, 2013

Hypsometric Map


http://atlas.nrcan.gc.ca/site/english/maps/reference/provincesterritoriesrelief/bc_relief

Hypsometric maps are used to show relief on the surface through a third dimension type such as coloring and shaping, contour lines, and/or raised relief. This is a map of British Columbia that expresses elevation. The elevation is expressed through a color scheme on the map correlated with the scale on the right side of the map.


PLSS Map


http://www.fgdc.gov/library/whitepapers-reports/annual%20reports/2008/web-version/AppendixC.html

The PLSS map (or the Public Land Survey System) is used a cadastral map that is designed to help identify land ownership among different areas. This is an example of a statewide standardized PLSS map. Based off of the information provided, there are 30 public domain states.

Cadastral Map


http://www.dalisproject.org/(S(rk0sgunu5prg1jfwact1euys))/pages/findMapsheet.aspx

Cadastral maps are used to help show ownership of land property within different boundaries as well as other basically any other detail such as specific landmarks and features. This is cadastral map that shows land parcels in Delaware County through a use of different colors as well as bold borders. Although this is just a simple example, these maps can go into much more detail about different areas.

Sunday, February 3, 2013

Thematic Map


http://soils.usda.gov/use/thematic/moist_regimes.html

This is a representation of a Thematic Map because it shows a specific them (in this case soil regimes), in relation to specific geographic areas (in this case the contiguous United States). It is not designed to show multiple geographic features such as forests and roads. It specifically portrays spatial variations that are related to geographical distributions such as states.

Choropleth Map


http://my.ilstu.edu/~jrcarter/Geo204/Choro/Tom/

This is a representation of a Choropleth Map using different shades of green to represent the percent of Hispanic or Latino persons (of any race) in Florida by County. As you can see, the darker shades of green indicate that there is a larger percent of Hispanic or Latino persons, as compared to the lighter shades of green, or less percent. On a side note, this map uses data from the 2000 Census so its data may be different in present time.

Topographic Map


http://www.nh.nrcs.usda.gov/technical/topomaps.html


The above image is a basic representation of a topographic map. It primarily shows the elevation of an object through the use of contour lines. It also represents the size and shape of the feature. When describing certain objects, the largest contour line surrounds the base of the object and and its height above sea level. As the lines, or circles, get smaller, the elevation of the feature increases as recorded by the number corresponding to that line. The rate of elevation can be depicted by how close or how spread out the lines are with respect to each other.