Science Topics term usage 2009-09-22

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.)

829	earthquakes
361	volcanoes
351	earthquake occurrences
332	maps and atlases
226	real-time monitoring and reporting
183	floods
125	topographic maps
125	climate change
123	ground water
116	energy resources
97	mineral resources
87	map interfaces
83	geospatial analysis
72	water quality
69	surface water (non-marine)
68	geologic maps
57	invasive species
55	remote sensing
50	contamination and pollution
49	natural resources
48	earth structure
45	health and disease
45	avian influenza
40	fires
36	natural gas resources
36	droughts
35	oil resources
34	ground-water flow
32	environmental health (human)
30	river systems
30	life sciences
30	geographic information systems (GIS)
30	biological and physical processes
29	seismology
29	volcanic activity
28	tectonic processes
28	human impacts
28	erosion
26	endangered species
26	stream-gage measurement

Science Topics term usage Tuesday, 2009-09-22