The lower map shows the population change from 1990 to 2000 for the lower 48 of the United States. The brown colors are areas of net loss and the purple areas of net gain. The upper map shows seismic hazards. Clearly, people are moving from the central United States, and area of low seismic hazard to other areas (especially in the Colorado Plateau and Basin and Range regions) that have higher seismic hazard. But why? More excitement in their life?
A great mapping website, called the National Atlas (nationalatlas.gov), allows you to make outrageous and spurious claims like this with very little effort. It's great fun.
For example you could see if there's a spatial correlation between mudpuppy distribution and number of aggravated assaults. Or, maybe the range of the Greater Bonneted Bat has a relationship with impact crater distribution!
Seriously though....this is pretty dang cool that the feds put this together. They have so many categories of information. And to be able to interactive show them on a map is just fantastic.
Here is just a sampling of what you can map:
- Agriculture
crop type
land usage
livestock
- Biology
amphibians (that's what a mudpuppy is, apparently)
bat ranges
butterflies
invasive species
ecoregions
- Climate
average precipitation
tornadoes
sea-surface temperature
- Environment
superfund sites (that one's a little scary)
toxic release inventory
water discharge permits
- GEOLOGY
- People
crime
unemployment
population density
median age
energy consumption
- Transportation
railways
airports
interstates
and so on....
Really an incredible resource. Have fun!
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