Science Topics term usage 2007-03-13

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.)

125	geographic information systems (GIS)
124	earthquakes
108	volcanoes
54	metallic ores
50	earthquake occurrences
41	animals
36	tectonic processes
30	earth structure
22	contamination and pollution
20	mineral resources
18	climate change
17	acid deposition
16	vertebrates
16	erosion
15	tsunamis
15	landslides
14	floods
14	endangered species
14	human impacts
13	real-time monitoring and reporting
13	wildlife
13	geologic history
13	seismology
13	global change
12	alluvial fans
12	stream-gage measurement
12	map coordinate systems
12	volcanic activity
12	hazards
11	industrial pollution
11	global warming
11	droughts
10	water quality
10	ocean characteristics
10	geolocation measurement
10	snow and ice cover
9	water supply and demand
9	rocks and deposits
9	gravitational field (earth)
9	rivers

Science Topics term usage Tuesday, 2007-03-13