Science Topics term usage 2005-10

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.)

6900	earthquakes
3549	volcanoes
2281	earthquake occurrences
2168	geographic information systems (GIS)
1548	tectonic processes
1434	maps and atlases
1334	earth structure
1064	energy resources
905	mineral resources
891	surface water (non-marine)
865	real-time monitoring and reporting
767	rocks and deposits
746	ground water
717	water quality
711	animals
706	contamination and pollution
665	tsunamis
665	streamflow
658	floods
629	landslides
619	geologic structure
615	seismology
611	hazards
609	geologic history
597	human impacts
592	earthquake probabilities
589	climate change
573	storms
561	aerial photography
522	oil resources
515	remote sensing
496	coastal zones
489	ground-water flow
469	water properties
465	magnetic field (earth)
452	ecosystems
450	erosion
447	water resources
435	acid deposition
434	cartography

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