Science Topics term usage 2009-06-17

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.)

423	earthquakes
172	earthquake occurrences
156	volcanoes
123	maps and atlases
80	real-time monitoring and reporting
53	USGS map servers
48	floods
44	energy resources
44	climate change
42	mineral resources
38	topographic maps
38	surface water (non-marine)
36	water quality
36	ground water
33	remote sensing
32	geospatial analysis
26	geologic maps
23	contamination and pollution
21	environmental health (human)
19	avian influenza
18	invasive species
17	droughts
16	river systems
16	seismology
12	earth structure
12	cartography
12	oil resources
11	earthquake probabilities
10	fires
10	geographic information systems (GIS)
8	hydrology
8	field inventory and monitoring
8	tectonic processes
7	ground-water quality
7	health and disease
7	USGS maps on demand
6	natural gas resources
6	mathematical modeling
6	volcanic activity
6	streamflow

Science Topics term usage Wednesday, 2009-06-17