Science Topics term usage 2010-04-25

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.)

1455	earthquakes
564	earthquake occurrences
378	volcanoes
158	maps and atlases
113	real-time monitoring and reporting
79	climate change
71	earthquake probabilities
68	energy resources
67	topographic maps
65	map interfaces
65	seismology
61	droughts
58	mineral resources
57	contamination and pollution
54	floods
51	surface water (non-marine)
46	remote sensing
43	ground water
39	invasive species
39	water quality
37	geospatial analysis
37	human impacts
30	avian influenza
30	fires
27	global warming
27	oil resources
22	tectonic processes
21	earth structure
21	hazards
19	volcanic activity
19	tornadoes
19	environmental health (human)
18	geologic maps
18	volcanic eruption prediction
17	soil resources
17	acid deposition
17	cartography
15	land surface characteristics
15	overfishing
15	river systems

Science Topics term usage Sunday, 2010-04-25