Science Topics term usage 2011-09-28

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.)

700	earthquakes
270	earthquake occurrences
165	volcanoes
84	maps and atlases
53	real-time monitoring and reporting
50	energy resources
44	surface water (non-marine)
43	groundwater
43	climate change
35	water quality
35	mineral resources
34	floods
31	geospatial analysis
30	contamination and pollution
29	earthquake probabilities
27	datasets
24	remote sensing
21	topographic maps
21	map interfaces
21	droughts
20	invasive species
20	environmental health (human)
19	animals
18	tsunamis
18	avian influenza
17	human impacts
17	geologic maps
16	volcanic activity
14	oil resources
12	ecosystems
12	fires
12	tectonic processes
12	seismology
12	groundwater quality
11	geographic information systems (GIS)
11	hydrology
11	life sciences
10	metallic ores
10	endangered species
10	surface water quality

Science Topics term usage Wednesday, 2011-09-28