Science Topics term usage 2009-11-13

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.)

1488	earthquakes
647	earthquake occurrences
305	volcanoes
254	maps and atlases
140	real-time monitoring and reporting
118	climate change
101	mineral resources
99	topographic maps
94	water quality
91	floods
83	energy resources
75	geospatial analysis
71	surface water (non-marine)
64	map interfaces
63	droughts
59	remote sensing
59	ground water
55	contamination and pollution
55	earthquake probabilities
54	geologic maps
52	seismology
46	invasive species
40	avian influenza
38	California
31	acid deposition
30	fires
30	ground-water flow
29	river systems
29	volcanic activity
28	environmental health (human)
26	oil resources
22	tectonic processes
21	animals
20	endangered species
20	land use and land cover
20	aerial photography
19	water chemistry
18	aquatic ecosystems
18	earth structure
18	topics

Science Topics term usage Friday, 2009-11-13