Science Topics term usage 2007-06-12

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.)

270	geographic information systems (GIS)
62	earthquakes
26	volcanoes
23	earthquake occurrences
22	cartography
21	map coordinate systems
20	floods
17	earth structure
16	ground water
16	human impacts
15	geospatial datasets
15	field methods
15	volcanic activity
14	oil resources
13	topography
13	aerial photography
13	rocks and deposits
11	earthquake probabilities
11	tectonic processes
11	mineral resources
10	health and disease
10	water quality
10	climate change
9	streamflow
9	geologic structure
9	maps and atlases
9	geography
9	side-scan sonar methods
8	energy resources
8	sediment transport
8	acid deposition
8	geochemistry
8	contamination and pollution
8	sea-floor characteristics
8	endangered species
8	zoology
7	freshwater ecosystems
7	magnetic field (earth)
7	surface water (non-marine)
7	water chemistry

Science Topics term usage Tuesday, 2007-06-12