Science Topics term usage 2009-05-22

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.)

1021	earthquakes
565	earthquake occurrences
153	volcanoes
120	maps and atlases
87	real-time monitoring and reporting
47	floods
43	USGS map servers
41	topographic maps
37	climate change
37	energy resources
36	remote sensing
35	mineral resources
29	water quality
27	invasive species
26	earthquake probabilities
26	ground water
25	seismology
25	surface water (non-marine)
25	droughts
23	avian influenza
22	geologic maps
22	geospatial analysis
21	contamination and pollution
20	fires
20	environmental health (human)
13	acid deposition
11	streamflow
10	health and disease
10	human impacts
9	volcanic activity
9	river systems
9	desert ecosystems
9	land use and land cover
8	ocean characteristics
7	aquatic ecosystems
7	oil resources
7	California
6	metallic ores
6	rivers
6	tsunamis

Science Topics term usage Friday, 2009-05-22