Science Topics term usage 2009-10-13

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.)

2107	earthquakes
1120	earthquake occurrences
404	volcanoes
311	maps and atlases
243	real-time monitoring and reporting
184	mineral resources
155	floods
130	water quality
125	climate change
122	topographic maps
113	energy resources
102	surface water (non-marine)
96	remote sensing
95	invasive species
88	avian influenza
83	map interfaces
82	geospatial analysis
76	ground water
67	contamination and pollution
61	droughts
60	earthquake probabilities
60	geologic maps
53	human impacts
48	seismology
43	fires
40	natural gas resources
39	environmental health (human)
38	California
37	water properties
36	ecological processes
34	volcanic activity
33	river systems
31	oil resources
30	stream-gage measurement
28	earth structure
27	life sciences
27	precipitation (atmospheric)
27	hazards
26	stream discharge
26	sediment transport

Science Topics term usage Tuesday, 2009-10-13