Science Topics term usage 2007-02

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.)

6138	earthquakes
2815	earthquake occurrences
2630	volcanoes
2575	geographic information systems (GIS)
675	earth structure
636	tectonic processes
556	mineral resources
550	acid deposition
532	climate change
452	geologic history
441	rocks and deposits
437	contamination and pollution
423	tsunamis
399	ground water
388	energy resources
388	animals
381	maps and atlases
381	human impacts
363	water quality
338	floods
329	landslides
318	geologic structure
308	global warming
306	erosion
303	endangered species
301	hurricanes
296	volcanic activity
286	ground-water flow
286	global change
285	oil resources
285	streamflow
284	seismology
282	land use and land cover
265	health and disease
260	aerial photography
259	earthquake probabilities
250	water resources
239	hazards
235	map coordinate systems
234	sediment transport

Scripts used