Science Topics term usage 2006-12-19

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.)

88	earthquakes
83	geographic information systems (GIS)
64	volcanoes
33	nonindigenous species
26	cartography
24	earthquake occurrences
18	acid deposition
18	human impacts
16	maps and atlases
16	contamination and pollution
15	animals
13	desert ecosystems
13	mineral resources
12	global warming
12	climate change
12	earth structure
12	tectonic processes
11	erosion
11	floods
11	global change
11	water quality
10	map coordinate systems
10	energy resources
10	ground-water flow
9	oil resources
9	streamflow
9	sea-floor characteristics
9	aerial photography
9	ground water
8	geologic history
8	water supply and demand
8	tsunamis
8	landslides
8	geospatial datasets
8	endangered species
8	invasive species
7	snow and ice cover
7	real-time monitoring and reporting
7	volcanic activity
7	migratory species

Science Topics term usage Tuesday, 2006-12-19