Science Topics term usage 2009-09-20

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.)

661	earthquakes
324	earthquake occurrences
262	volcanoes
212	maps and atlases
87	map interfaces
87	climate change
75	floods
70	real-time monitoring and reporting
70	mineral resources
64	ground water
61	topographic maps
51	water quality
50	avian influenza
48	energy resources
47	contamination and pollution
46	geospatial analysis
45	remote sensing
42	surface water (non-marine)
42	droughts
34	invasive species
34	environmental health (human)
33	life sciences
29	fires
28	acid deposition
28	global warming
25	geologic maps
25	field methods
25	rocks and deposits
24	health and disease
23	earth structure
23	hydrology
22	tectonic processes
22	earthquake probabilities
21	biological and physical processes
20	desert ecosystems
18	organisms
16	oil resources
15	geologic history
14	deformation (geologic)
14	tsunamis

Science Topics term usage Sunday, 2009-09-20