Science Topics term usage 2009-01-01

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.)

680	earthquakes
317	earthquake occurrences
225	volcanoes
65	maps and atlases
53	real-time monitoring and reporting
35	USGS map servers
29	topographic maps
27	climate change
22	floods
21	avian influenza
20	volcanic activity
18	energy resources
17	water quality
17	droughts
16	seismology
16	mineral resources
15	geospatial analysis
15	invasive species
15	contamination and pollution
15	remote sensing
15	ground water
14	earthquake probabilities
14	surface water (non-marine)
11	fires
10	environmental health (human)
7	biogeography
6	USGS budget
6	health and disease
6	geologic maps
5	topics
5	oil resources
5	aerial photography
5	desert ecosystems
4	global warming
4	Wyoming
4	earth sciences
4	animals
4	rocks and deposits
4	earth structure
3	earth characteristics

Science Topics term usage Thursday, 2009-01-01