Science Topics term usage 2009-03-21

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.)

309	earthquakes
306	volcanoes
116	earthquake occurrences
66	maps and atlases
57	real-time monitoring and reporting
48	USGS map servers
47	mineral resources
47	floods
41	water quality
37	climate change
34	droughts
33	surface water (non-marine)
33	energy resources
29	geospatial analysis
26	contamination and pollution
26	remote sensing
25	ground water
24	avian influenza
23	environmental health (human)
22	invasive species
21	topographic maps
17	fires
16	erosion
12	geologic maps
11	volcanic activity
11	earthquake probabilities
10	health and disease
8	water chemistry
8	oil resources
8	streamflow
8	hydrology
8	global warming
8	pharmaceutical contamination
8	seismology
7	USGS budget
7	river systems
7	water properties
7	snow and ice cover
7	animals
7	USGS maps on demand

Science Topics term usage Saturday, 2009-03-21