Science Topics term usage 2012-03-21

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.)

1387	earthquakes
442	earthquake occurrences
227	volcanoes
125	real-time monitoring and reporting
121	maps and atlases
101	climate change
78	groundwater
74	surface water (non-marine)
70	floods
69	mineral resources
68	energy resources
62	earthquake probabilities
57	map interfaces
52	geospatial analysis
52	remote sensing
52	droughts
50	contamination and pollution
49	invasive species
45	water quality
40	avian influenza
34	environmental health (human)
33	seismology
26	geologic maps
23	topographic maps
22	volcanic activity
21	natural gas resources
21	fires
21	animals
20	microbiology
19	human impacts
18	oil resources
15	tectonic processes
14	endangered species
12	biogeography
12	tsunamis
12	acid deposition
11	geochemistry
11	river systems
11	life sciences
11	earth structure

Science Topics term usage Wednesday, 2012-03-21