Science Topics term usage 2012-02-21

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.)

1452	earthquakes
630	earthquake occurrences
225	volcanoes
116	maps and atlases
100	climate change
69	mineral resources
50	energy resources
46	real-time monitoring and reporting
45	map interfaces
44	surface water (non-marine)
43	floods
40	geospatial analysis
39	earthquake probabilities
39	water quality
36	topographic maps
34	groundwater
29	contamination and pollution
28	droughts
27	invasive species
26	avian influenza
23	remote sensing
22	geologic maps
20	seismology
18	acid deposition
17	volcanic activity
16	environmental health (human)
15	data services
15	offstream water use
13	water chemistry
13	endangered species
12	human impacts
12	oil resources
11	tectonic processes
11	tsunamis
10	land use and land cover
10	hydrology
10	fires
10	microbiology
9	geologic history
9	cartography

Science Topics term usage Tuesday, 2012-02-21