Infrared Aerial Photo

http://www.krisweb.com/krissheepscot/krisdb/html/krisweb/watershed/sanrafael_nasa.jpg

An Infrared aerial photo is a photo taken by Infrared Aerial Photography. An Infrared aerial photo is a photo taken off of ground level and not standing on anything (usually by plane or satellite). An Infrared film is sensitive to a particular spectrum of light. An Infrared aerial photo can be anything from photos of river deltas, roofs of buildings, the top of a rain forest and etc. An Infrared aerial photo can help educate people with problems by producing images such as the ice melting in the Arctic, the erosion of land, and problems with deforestation.

PLSS Maps

http://www.nationalcad.org/onlineed/standard/mn-exmp2.gif

PLSS, the Public Land Survey System, is a method used to identify public land parcels. The Federal Government can utilize the PLSS to survey the land and be able to distinguish where distribute agriculture or anything else on it.This map is Minnesota's PLSS Base map.

Isoline Maps

http://www.lib.utexas.edu/maps/atlas_mexico/mean_annual_precipitaion.jpg

An Isoline map utilizes isolines to depict information about a specific variable. An isoline is a line that connects around points of equal value. This Isoline map portrays the mean annual precipitation using isolines.

Bilateral Graph

http://www.rba.gov.au/publications/bulletin/2008/feb/images/aug-twi-aus-dol-graph4.gif

A Bilateral Graph is a graph that represents more than one variable. A Bilateral Graph can be portrayed by many different types of graphs, from line graphs to bar graphs. In this Bilateral Graph, the two variables that are being compared are the Nominal TWI and ATWI are represented by a red and blue line.

Range Graded Proportional Circle Map

http://www.neiu.edu/~jrthomas/377/circle.jpg

A Range Graded Proportional Circle map is a type of Proportional Circle map. A Range Graded Proportional map represents the range of the data by the size of the circle. For example, in this map of Mexican population, you can see that the states of California and Texas have the largest population of Mexicans in the west by the size of the circles compared to the other states'!

Bivariate Choropleth Maps

http://proceedings.esri.com/library/userconf/proc99/proceed/papers/pap171/p1715.jpg

A Bivariate Choropleth map portrays two variables on a single map. For example, this map represents the population of 1997 (with the color) and it also represents the median house value (by the dots).

Univariate choropleth maps

http://www.cdc.gov/pcd/issues/2007/oct/images/07_0091_02.gif

A Univariate Choropleth map portrays a map representing one specific variable. This map is an example of a Univariate Choropleth map because it represents one specific variable, the percentage of people in poverty in America.