Science Topics term usage 2010-12-20

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.)

1238	earthquakes
366	earthquake occurrences
126	volcanoes
79	maps and atlases
69	real-time monitoring and reporting
48	climate change
48	groundwater
42	mineral resources
40	floods
39	surface water (non-marine)
39	energy resources
31	seismology
30	geospatial analysis
30	topographic maps
29	map interfaces
28	water quality
28	earthquake probabilities
25	remote sensing
20	contamination and pollution
18	invasive species
16	oil resources
15	avian influenza
13	environmental health (human)
13	fires
13	geologic maps
13	droughts
12	land use and land cover
12	health and disease
11	river systems
10	volcanic activity
10	stream discharge
9	groundwater flow
8	geologic processes
8	coal resources
7	streamflow
7	acid deposition
7	topics
7	hazards
7	geochemistry
6	groundwater quality

Science Topics term usage Monday, 2010-12-20