Science Topics term usage 2010-03-24

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.)

1764	earthquakes
577	earthquake occurrences
531	volcanoes
214	real-time monitoring and reporting
191	maps and atlases
145	mineral resources
136	seismology
116	earthquake probabilities
114	climate change
112	field methods
93	ground water
90	remote sensing
90	map interfaces
84	topographic maps
84	floods
80	energy resources
78	water quality
66	surface water (non-marine)
64	geospatial analysis
57	contamination and pollution
50	droughts
50	invasive species
43	geologic maps
42	avian influenza
35	hazards
34	volcanic activity
29	human impacts
29	fires
28	nonmetallic mineral resources
28	tectonic processes
27	environmental health (human)
27	oil resources
26	snow and ice cover
26	river systems
24	metallic ores
23	ocean characteristics
23	desert ecosystems
22	topics
21	erosion
21	earth structure

Science Topics term usage Wednesday, 2010-03-24