Science Topics term usage 2007-03

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.)

2956	earthquakes
2852	geographic information systems (GIS)
2311	volcanoes
915	earthquake occurrences
660	earth structure
617	acid deposition
614	tectonic processes
601	global warming
522	climate change
499	rocks and deposits
463	mineral resources
438	contamination and pollution
437	floods
432	ground water
424	tsunamis
423	maps and atlases
397	energy resources
391	human impacts
391	volcanic activity
367	geologic history
356	erosion
344	landslides
336	water quality
333	animals
330	ground-water flow
319	streamflow
302	endangered species
299	hydrogeology
292	map coordinate systems
291	aerial photography
287	hurricanes
286	global change
284	land use and land cover
282	oil resources
272	sediment transport
265	geologic structure
265	surface water (non-marine)
257	real-time monitoring and reporting
253	health and disease
251	earth characteristics

Scripts used