Science Topics term usage 2009-08-15

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.)

619	earthquakes
330	earthquake occurrences
219	maps and atlases
214	real-time monitoring and reporting
195	volcanoes
87	energy resources
84	surface water (non-marine)
84	topographic maps
83	map interfaces
79	contamination and pollution
73	water quality
70	mineral resources
70	floods
67	climate change
66	fires
56	environmental health (human)
53	ground water
50	avian influenza
50	remote sensing
48	geospatial analysis
44	droughts
43	invasive species
39	geochemistry
36	geologic maps
33	vertebrates
31	geographic information systems (GIS)
30	streamflow
29	oil resources
29	health and disease
29	human impacts
29	hazards
27	rocks and deposits
27	biological and physical processes
27	aquatic biology
25	land use and land cover
25	volcanic activity
24	earth structure
24	ground-water flow
24	ecosystems
23	life sciences

Science Topics term usage Saturday, 2009-08-15