Science Topics term usage 2009-07-13

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.)

472	earthquakes
238	earthquake occurrences
125	maps and atlases
117	volcanoes
74	real-time monitoring and reporting
50	topographic maps
45	map interfaces
42	energy resources
41	climate change
37	water quality
36	floods
36	ground water
33	geospatial analysis
32	mineral resources
31	geologic maps
30	surface water (non-marine)
29	remote sensing
23	contamination and pollution
21	earthquake probabilities
20	invasive species
18	droughts
15	avian influenza
13	geographic information systems (GIS)
13	surface water quality
12	environmental health (human)
12	seismology
12	river systems
11	oil resources
10	fires
9	ground-water quality
9	geologic history
8	rocks and deposits
8	acid deposition
7	earth structure
7	ground-water flow
7	global warming
6	streamflow
6	environmental assessment
6	animals
6	gold ores

Science Topics term usage Monday, 2009-07-13