Science Topics term usage 2009-07-15

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.)

1099	earthquakes
523	earthquake occurrences
147	maps and atlases
99	volcanoes
80	real-time monitoring and reporting
65	topographic maps
57	map interfaces
52	mineral resources
45	climate change
39	surface water (non-marine)
39	energy resources
36	ground water
35	droughts
35	water quality
34	remote sensing
32	floods
29	geologic maps
29	geospatial analysis
25	earthquake probabilities
23	contamination and pollution
20	invasive species
19	avian influenza
15	seismology
14	fires
14	environmental health (human)
12	tsunamis
11	ecosystems
10	stream discharge
10	oil resources
9	river systems
8	metallic ores
8	global warming
7	precipitation (atmospheric)
7	natural gas resources
7	hazards
7	surface water quality
6	nonmetallic mineral resources
6	tectonic processes
6	geographic information systems (GIS)
6	desert ecosystems

Science Topics term usage Wednesday, 2009-07-15