Science Topics term usage 2007-10

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

2829	earthquakes
1964	geographic information systems (GIS)
1924	volcanoes
1131	earthquake occurrences
1092	climate change
730	real-time monitoring and reporting
679	earth structure
586	acid deposition
564	tectonic processes
513	rocks and deposits
503	streamflow
478	contamination and pollution
467	aerial photography
457	human impacts
457	animals
442	ground water
432	mineral resources
431	health and disease
398	topography
375	global warming
363	energy resources
361	tsunamis
354	water quality
347	erosion
336	geologic history
334	desert ecosystems
327	endangered species
315	floods
309	global change
309	ground-water flow
287	water supply and demand
285	droughts
282	geologic structure
281	maps and atlases
279	hurricanes
273	plants (organisms)
271	aquatic ecosystems
271	land use and land cover
260	surface water (non-marine)
256	invasive species

Scripts used