Friday, April 23, 2010
Univariate Choropleth map
This map focuses one one thing, poverty. It shows in stark relief the number of people living below the poverty level in this country. It also shows a shape of large amounts of poverty stricken people in the southern part of the country. http://www.cdc.gov/pcd/issues/2007/oct/07_0091.htm
Bivariate choropleth maps
Bilateral Graph
This shows the effectiveness of a bionic ear implant over time. The variants here show side by side the number of correct answers (to a given aural quiz regarding sound localization) given by individuals with the implant over time. http://www.advancedbionics.com/CMS/Your-Journey-to-Hearing/Bilateral-Research.aspx
Unclassed choropleth maps
Classed Choroplelth Maps
Lorenz Curve
Index value plot
This index value plot shows the worth of Disney Stock prices over time (in this case from Sep 1966 through Oct 67). As we can see in 1966 they were still fairly low, but since then have experienced unprecedented growth, followed by one small period of decline, and then further growth. http://www.loricatrade.com/articles/risk-management-investigating-stops/
Range graded proportional circle map
Scatter plot
Continuously variable proportional circle map
DOQQ
Climograph
DEM
Windrose
Triangular Plot
This is potentially one of the more controversial of the maps I have included here. This triangular plot shows a kind of political certainty that no matter how you vote, events will turn out the same. Scary. http://www.ex-parrot.com/~chris/wwwitter/20050407-it_doesnt_matter_how_you_vote_either_way_your_planet_is_doomed.html
Histogram
Nautical Chart
Box Plot
DLG
Star Plot
This is a pretty neat star plot. It gives a simple correlation device to a user on how different cars compare on different features. This could prove a very useful tool when purchasing the family car.
http://www.itl.nist.gov/div898/handbook/eda/section3/starplot.htm
DRG
Standardized choropleth maps
Unstandardized choropleth maps
This choropleth uses unstandardized (read here raw, not averaged or fared.) numbers in it's display. It is simple math and simple display. In this case we see the number of ski shops throughout the area of Michigan, Wisconsin, and Minnesota.
http://www.uwec.edu/webprojects/geog367/northwoods/silent_sports.html
Isopleths
Investigating the occurrence of Thyroid cancers in the Bryansk Oblast region since the Chernobyl accident, these isopleths depict the surface deposits of contaminates while the circles illustrate the number of documented cases of Thyroid cancers. The isopleths numerically represent the surface deposition densities.
Stem and leaf plot
Isopach
This isopach depiction of the Barnett Shale is but one of many geological illustrations being used to plan for optimum refinement of natural gas reserves in the Fort Worth Basin of Texas. Using a combination of color shades and numbered lines, this isopach illustrates contours at a scale of 25' for the purposes of planning drill sites.
Isohyets
The isoheyts here show a natural range of equal points of height. This, as part of a study has direct impact on area rainfall. http://www.fao.org/docrep/009/a0415e/A0415E11.htm
Isotachs
This map of a North Carolina winter storm shows clear isotachs and wind channels along the low pressure line. The depth of the color of the isotachs shows wind speed and prevailing direction. http://www4.ncsu.edu/~nwsfo/storage/cases/20030123/
Isobars
Rather than use any old weather map of the US, I chose this one of Australia. This from a website that instructs one how to read weather maps and temperature formations shows a cold front moving in via a low pressure system over south-eastern Australia. The isobars, in that area show a decreasing pressure front which allows the cold air to descend. http://www.hsc.csu.edu.au/primary_ind/prim_ind_240/compulsory/RTE2503A/3264/reading_weather_maps.htm
LIDAR
Now for something out of this world. This LIDAR image uses a Canadian built imaging system to show us snowfall on Mars. This uses a bivariate matrix to show us time, and altitude.http://www.nasa.gov/mission_pages/phoenix/images/press/Lidar_Fall_Streaks_SD_001.html
Doppler radar
This is an image many of us are very familiar with. This is tracking Hurricane Charley as it puts a little hurting on Florida. Taken at 1943 local, 2343 UTC, the depth and density of the rain bands is shown in near perfect rotation about the eye. http://www.weatherusa.net/blog/index.php?month=August_2004
Black & white aerial photo
Infrared Aerial photo
This infrared photo shows a section of Everglades National Park. Outlined in red is the area selected for tests in lightning gaps in mangrove trees. The lush green section is indicative of dense canopy. http://sofia.usgs.gov/publications/fs/2004-3016/
Statistical Map
This is a statistical map that follows the spread of atheism throughout Europe. This shows in stark relief the predominantly religious countries. It also puts into perspective the largely atheist population of France. http://xenlogic.wordpress.com/2009/04/11/atheism-exposed-pragmatism/
Similarity Matrix
Cartogram
Flow Maps
Isoline Map
Isoline maps take data from certain points to create generalized regions of the same or similar circumstances, such as this isoline map representing lag time in rainfall for Burkina Faso. The map of the region illustrated here represents actual physical locations as notated by latitude and longitude, while the lines and numbers with represent data gathered rather than political or geographical distinctions.
Proportional Circle Map
This proportional circle map illustrates the Hispanic Population of the United States. Rather than a cluster of small dots each representing the same number of people, such as in the dot distribution map, this map provides a key in which graduated sizes of circles represent larger numbers of Hispanics to be represented by each circle.
Choropleth maps
This choropleth map provides a color-coded reference for the primary popular nomenclature for carbonated beverages by county. While state borders are clearly represented by a thick black line, the United States is further divided into counties in order to provide an even more detailed regional representation.
Dot Distribution Map
Propaganda Map
This propaganda map from the Japanese perspectives utilizes generalized landmass representations to establish location while the illustrations provide political commentary on the popular sentiment regarding British Imperial forces. As is the case with most propaganda maps, the social or political commentary is the focus rather than accurate representations of scale.
Hypsometric maps
PLSS maps
This is a Land survey that traces the path of a river system through an Idaho Township. It's set up as a sub-divided land survey broken into quadrants. Image obtained from: http://www.idwr.idaho.gov/GeographicInfo/Publications/adjudica.htm
Cadastral maps
This is a Cadastral map that shows the registered land in the entirety of Taiwan. This shows some very interesting trends. For example there are areas in the lower part of Pingtung County that has very spotty unregistered areas. Adding a topographic or relief map might show us why. Image obtained from: http://www.nlsc.gov.tw/websites/nlsceng/make_page.aspx?la=2&le=2&li=53&sno=152
Thematic Map
This is a pretty cool Thematic Map. This basically shows the makeup of the plant life of Canada. For those of us who think of snow and ice when the big northern neighbor is mentioned, it's an eye opener. Look at all the green! Compared to the regions of snow and ice, greenery is much more a part of the Canadian Landscape. Image obtained from:http://www.statcan.gc.ca/mgeo/ex2-eng.htm
Topographic Map
This is a pretty cool rendering of the sea floor between Oahu and Molokai. This isn't just a topographical map of an island, but also it's construction. It shows the physical construction from the sea floor up. Essentially from the earth's crust, this is how these two islands came to be! Image obtained from:http://www.oahunaturetours.com/map.html
Planimetric Map
This is a Planimetric map used to illustrate a parcel of land for sale. It is a very simple map primarily used to show the relationship of the parcel for sale to the nearest major road and its approximate size. This demonstrates the most common use for this type of map. Image obtained from:http://realestate.potlatchcorp.com/idlands/REparcel23.asp
Mental Map
This is a simple Mental Map of the "Great North Road". As we can see, it is thought that Scotland is just below the North Pole. This depicts a pretty common belief of the state of things even as recent as the 1930's. Image obtained from http://amycutler.wordpress.com/2009/09/15/novel-geographies-of-the-great-north-road-in-c-e-montagues-right-off-the-map-1927-and-elizabeth-bowens-to-the-north-1932/
Friday, January 15, 2010
Population Profile
This is a simple population profile for Northern Ireland for the year 1971. The horizontal scale reads the number of individuals (in tens of thousands) and the vertical scale displays the age groups (in tens of years) to which these individuals belong. The resolution is modest so areas where similar age groups have similar population sizes tend to blend together, but otherwise it is easily legible. Image obtained from http://www.ninis.nisra.gov.uk/mapxtreme/InteractiveMaps_Demography.asp
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