Science Topics term usage 2009-05-01

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.)

434	earthquakes
196	earthquake occurrences
161	volcanoes
96	maps and atlases
74	real-time monitoring and reporting
51	climate change
50	USGS map servers
45	surface water (non-marine)
40	floods
37	topographic maps
35	avian influenza
33	energy resources
31	mineral resources
30	water quality
29	remote sensing
28	ground water
27	geospatial analysis
25	environmental health (human)
24	human impacts
23	droughts
21	contamination and pollution
16	river systems
15	invasive species
15	geologic maps
13	earthquake probabilities
13	fires
10	streamflow
10	endangered species
10	seismology
9	natural gas resources
9	health and disease
9	stream discharge
9	acid deposition
8	earth structure
8	erosion
8	global warming
8	USGS maps on demand
7	drainage basins
7	oil resources
7	global change

Science Topics term usage Friday, 2009-05-01