Science Topics term usage 2007-09

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.)

2558	earthquakes
2407	geographic information systems (GIS)
1536	volcanoes
1044	earthquake occurrences
742	earth structure
614	tectonic processes
602	acid deposition
568	streamflow
548	climate change
530	real-time monitoring and reporting
483	hurricanes
472	ground-water flow
455	contamination and pollution
452	animals
444	human impacts
443	tsunamis
402	rocks and deposits
384	mineral resources
367	energy resources
336	endangered species
335	ground water
335	health and disease
328	water quality
311	maps and atlases
311	erosion
298	global change
292	floods
290	geologic structure
290	geologic history
269	life sciences
265	global warming
261	mathematical modeling
253	desert ecosystems
242	plants (organisms)
239	sediment transport
239	ocean characteristics
236	land use and land cover
228	river systems
225	water supply and demand
225	fires

Scripts used