Science Topics term usage 2009-07-07

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.)

419	earthquakes
174	earthquake occurrences
122	volcanoes
96	maps and atlases
55	real-time monitoring and reporting
44	climate change
43	energy resources
42	mineral resources
38	topographic maps
37	map interfaces
35	water quality
33	remote sensing
32	surface water (non-marine)
30	ground water
26	floods
26	geospatial analysis
21	invasive species
20	droughts
19	oil resources
18	contamination and pollution
16	avian influenza
15	earthquake probabilities
14	acid deposition
13	seismology
13	environmental health (human)
13	geologic maps
12	health and disease
11	earth structure
10	streamflow
10	ground-water quality
10	river systems
9	geothermal resources
9	fires
8	surface water quality
8	hazards
8	animals
7	soil resources
7	habitats
7	natural resource management
6	aerial photography

Science Topics term usage Tuesday, 2009-07-07