Science Topics term usage 2009-07-23

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.)

389	earthquakes
172	earthquake occurrences
118	maps and atlases
106	volcanoes
84	real-time monitoring and reporting
56	topographic maps
47	map interfaces
44	mineral resources
43	climate change
40	energy resources
39	surface water (non-marine)
35	water quality
32	remote sensing
31	geospatial analysis
27	ground water
25	droughts
24	floods
24	contamination and pollution
21	invasive species
20	environmental health (human)
20	avian influenza
15	fires
15	geologic maps
13	oil resources
12	volcanic activity
12	earthquake probabilities
12	seismology
11	soil resources
10	endangered species
9	rocks and deposits
9	river systems
9	land use and land cover
9	surface water quality
8	tectonic processes
8	erosion
8	geologic history
8	health and disease
8	acid deposition
7	geographic information systems (GIS)
7	streamflow

Science Topics term usage Thursday, 2009-07-23