Friday, August 8, 2008

Triangular plot

This soil pyramid is an example of a triangle plot. It graphs three distinct variables at once. This plot is used to determine what a soil is characterized as based on composition.

http://www.glencoe.com/qe/scienceOLC.php?qi=7189

Wind Rose

A wind rose represents wind speed and direction at a location. The size of the bars represents speed and the location shows direction.

http://www.nws.noaa.gov/mdl/pgb/AvnFPS/3.2/html/climate-new.html

Climograph

This is a climograph of Memphis, Tn. The temperature data is shown with a line graph, while the precipitation is shown with a bar graph.

http://www.uwsp.edu/geo/faculty/ritter/glossary/a_d/climograph.html

Population profile

This population profile compares life expectancy in populations with and without AIDS. Data is categorized by age group.

http://www.ifad.org/operations/regional/pf/aids_1.htm

Scatterplot

This scatterplot is a volcano plot, based on the values from a t-test. The data points go in two directions since the data is based on a log function.

http://www.moleculardevices.com/pages/software/gn_acuity.html

Index value plot

This index value plot shows the relationship between what is considered normal streamflow and actual values. The index used is the average streamflow index and values are compared to it along the center line.

http://water.usgs.gov/waterwatch/?m=real&w=plot

Lorenz curve

A Lorenz curve showing the area of inequality in the relationship between percent of population and percent of income.

http://www.unc.edu/depts/econ/byrns_web/Economicae/Figures/Lorenz.htm