Science Topics term usage 2011-09-19

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.)

1525	earthquakes
591	earthquake occurrences
239	volcanoes
100	maps and atlases
70	energy resources
68	real-time monitoring and reporting
60	mineral resources
59	earthquake probabilities
58	floods
52	climate change
47	surface water (non-marine)
47	groundwater
43	map interfaces
35	geospatial analysis
33	water quality
30	seismology
28	topographic maps
28	droughts
22	fires
22	invasive species
22	natural gas resources
21	oil resources
20	contamination and pollution
20	aquatic biology
19	environmental health (human)
19	volcanic activity
19	avian influenza
18	remote sensing
16	geologic maps
15	human impacts
14	earth structure
14	surface water quality
14	endangered species
14	river systems
13	water chemistry
13	life sciences
13	acid deposition
12	tsunamis
12	oxygen content (water)
12	geochemistry

Science Topics term usage Monday, 2011-09-19