Science Topics term usage 2010-04-30

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.)

1308	earthquakes
465	earthquake occurrences
359	volcanoes
164	maps and atlases
117	real-time monitoring and reporting
85	energy resources
79	ground water
76	surface water (non-marine)
68	contamination and pollution
67	earthquake probabilities
63	climate change
60	topographic maps
58	floods
52	geospatial analysis
50	map interfaces
49	water quality
47	seismology
44	mineral resources
38	invasive species
33	remote sensing
33	droughts
24	river systems
23	oil resources
22	avian influenza
21	tectonic processes
21	human impacts
19	fires
18	land use and land cover
17	volcanic activity
17	streamflow
15	water use
14	animals
14	tsunamis
13	geologic maps
13	life sciences
13	hazards
13	magnetic field (earth)
13	geographic information systems (GIS)
12	acid deposition
12	topics

Science Topics term usage Friday, 2010-04-30