Tuesday, November 22, 2011

Continuously Variable Proportional Circle Map

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A continuously variable proportional circle map uses circles to show the proportion of frequencies of quantities. The size of the circle depicts that. The circle size is based on actual data, not a range or average. In this example, each circle is divided up in the form of a pie chart.

Monday, November 21, 2011

LIDAR

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LIDAR stands for Light Detection and Ranging. This photo of New York City shows how LIDAR uses pulses from lasers to extrapolate the measurements and data of a surface. It illuminates its targets with light. 

Doppler Radar


This Doppler Radar depicts the path of Hurricane Katrina in 2005. It uses sound waves and electromagnetic radiation to predict weather patterns such as rainfall and storm occurrences. 

Black & White Aerial Photo

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This black and white aerial photo portrays a city and within the city it shows its neighborhoods and streets. The picture is taken from the sky to show a broader view of the area. 

Infrared Aerial Photo

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This infrared aerial photo shows a stadium and its surrounding environment. Infrared aerial photos show green in nature as red from a bird’s eye view. For example, grass and treetops would show up as red whereas the turf in this picture shows up black due to the fact it is made of inorganic material. 

Cartographic Animation


Cartographic animation by definition is graphic art depicted over time. This cartographic animation shows the magnitude of wind velocities around the world by month. It blends together the months to form the animation. 

Statistical Map

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Statistical maps can show the average distance from one place to another as shown in this example. This map has mean travel times to work according to the National Data Book in 2006. Colors are used because states that are darker represent longer travel times.
(It has an error code embedded in the link, but if you click proceed it works perfectly fine.)

Cartogram

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This is an example of a cartogram because it blurs actual boundary lines in response to the proportion of singers that originated from each continent. When looking at it, Africa seems to have the greatest number of singers that were born there. 

Flow Map


Flow maps show the distribution of people or objects from one area to another. This map depicts the trade route of France’s wine exports circa 1864. 

Isoline Map


As shown in this annual precipitation map of Washington in 1996, isoline maps have continuous lines that represent data that is continuous. Lines that touch show equal values, but the lines never touch. For example, lines that are touching on this map are areas that have equal amounts of precipitation. 

Proportional Circle Map


This proportional circle map shows Native American populations in 1990. The larger the circles, the larger the population size and vice versa.

Choropleth Map

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This is an example of a choropleth map because it depicts the percentage of votes cast in the United States in the 2008 presidential election and each party is represented by shades of red or blue. 

Dot Distribution Map


In my opinion, dot distribution maps are pretty much self-explanatory. They show distribution patterns of a certain population using “dots” as a means to qualify the data. This map shows the distribution of Feeder Watchers in the United States. 

Propaganda Map

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This is an example of a propaganda that follows an old saying, “Everything is bigger in Texas!” Propaganda maps are used to persuade people and voice opinions. This map shows Texas as being the main focus of the U.S. and other states are given less than desirable nicknames. For example, Florida is labeled as “Swamp Land”. This would dissuade people from going there and instead go to Texas. 

Hypsometric Map


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Hypsometric maps show elevation of land and sea by using different shading techniques. It has also progressed into a 3-D depiction as well. This hypsometric map shows the Aegean Sea. You can see that the deeper the water, the darker the blue is used. Also, as the elevation above water increases, the whiter that area is. 

PLSS Map

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This is an example of a Public Land Survey System map. It is a hybrid of a cadastral map as well due to its coloring and depiction of land parcel ownership. The PLSS map distinguishes between public land and land owned by the government. This map is from Minnesota and is sorted by county codes. 

Cadastral Map

http://www.dalisproject.org/(S(uizyv545cvslhb55xctkmvqc))/pages/findMapsheet.aspx
This cadastral map shows ownership of land parcels in Delaware County. Cadastral maps are generally organized by color in terms of ownership. 

Thematic Map

This is an example of a thematic map that shows the population densities in Florida of the percentage of households that have someone 65 years or older living in them. This map uses counties to dictate the perimeters but thematic maps can use cities, neighborhoods, etc. The information depicted in a thematic map can be either quantitative or qualitative. 

Topographic Map

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This is an example of a topographic map of the Salmon River. It has visible contour lines that indicate elevation. It shows that the river and creeks are in a valley surrounded by areas of high elevation on all sides.

Planimetric Map

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This is an example of a planimetric map because it only focuses in on the horizontal aspects of the area. There are no vertical markers for elevation. It depicts Fort Vancouver in 1944. 

Mental Map

http://www.fedstats.gov/kids/mapstats/concepts_mentalmaps.html


This is an example of a mental map of Nottingham City Center. Mental maps are capable of being completely different from person to person. The person who creates the map can focus on things that someone else might not have. The scale could also be off from one person to the next. In this map, the person was able to recall street curvature and names. 

Univariate Choropleth Map

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These maps are similar to the bivariate choropleth maps except only depict one variable. This example represents the percentage of individuals living in poverty in 2000.

Unclassed Choropleth Map

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Unclassed choropleth maps are a unique method that uses continuous color schemes and shading. This map shows the color scheme and the related values. 

Bivariate Choropleth Map

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These maps show two separate variables in response to one specific issue. Different colors are used to shade the difference between the variables. This bivariate choropleth maps shows Russia’s population density in 2002 versus 1989 and Russia’s central federal district. 

Classed Choropleth Map

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Classed choropleth maps provide visualizations of how a measurement can change across a given area. The proportions and measurements are shown by different levels of shading. This map shows the amount of spending by overseas residents in the year 2003. 

Range Graded Proportional Circle Map

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This type of map uses circles to group the data into circles. Circles are easily scaled and measured using the radius. This map has the population of Europe by country. This bigger the circles are on the map, the larger the population.

DOQQ


DOQQ stands for digital orthophotos quadrangle. It is a computerized image of an aerial photo. This photo was made by the USGS and is what is known as a natural colored picture. 

DEM

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DEM stands for digital elevation model and is an image that represents elevation on Earth’s surface and is in turn made into digital representations and 3-D images. This example represents the 3D graphics and the multilayer map that uses transparencies to represent the important characteristics. 

DLG


DLG, or digital line graph, represents digital vector data. It uses contour lines to represents a multitude of data. They exist in three scales which are small, intermediate, and large. This is a picture of transportation routes and natural boundaries. 

DRG


DRG, or digital raster graphic, is a scanned copy of a USGS topographical map. They account for all geographical markers on the Earth. This is an image of the Colorado River running through a Colorado town.

Isopleth

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Isopleths are made up of contour lines that generalize data. This map depicts the wind velocity and latitude averaged over several years by month. 

Isopach


Isopach maps are used to show meteorological information that is related to geology. For example, this isopach shows the thickness in meters of Tioga Bentonite. Tioga Bentonite originates as volcanic ash so having this information could let someone know which areas were hit more heavily by the ash of a volcanic disruption. 

Isohyet

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An Isohyet is a line drawn on a weather map to indicate which areas received an equal amount of rainfall during a set time period. The line itself connects two points and segments that area as shown in this map. 

Isotach

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Isotachs are generally used in meteorology and show wind speeds. When lines connect, as they do in this map, it means that the wind speeds are equal or close. The lines that are closer together are more intense. 

Isobar

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This isobar map shows the atmospheric pressure in the U.S.  The map shows us that in the East there will be a rapid change in pressure due to the closeness of the bars.