Science Topics term usage 2009-09-21

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.)

1017	earthquakes
507	earthquake occurrences
361	maps and atlases
317	volcanoes
223	real-time monitoring and reporting
208	floods
154	climate change
126	topographic maps
122	ground water
117	water quality
116	map interfaces
101	surface water (non-marine)
100	mineral resources
92	energy resources
86	invasive species
78	contamination and pollution
73	geospatial analysis
68	remote sensing
66	droughts
65	geologic maps
64	fires
55	environmental health (human)
54	avian influenza
50	seismology
47	life sciences
42	earthquake probabilities
39	animals
38	oil resources
37	acid deposition
36	streamflow
36	earth structure
35	ground-water flow
34	hydrology
32	stream discharge
31	health and disease
28	soil resources
27	volcanic activity
26	human impacts
26	erosion
26	desert ecosystems

Science Topics term usage Monday, 2009-09-21