USGS Thesaurus
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Themes, subjects, and concerns for which USGS information resources are relevant.
Subtopics:
Biological and physical processes
(2198 items)
Contamination and pollution
(29 items)
Culture and demographics
(2 items)
Earth characteristics
(3516 items)
Effects of climate change
(187 items)
Elements
(41 items)
Field monitoring stations
(92 items)
Hazards
(340 items)
Health and disease
(12 items)
Human impacts
(12 items)
Information system design and development
(115 items)
Land use and land cover
(56 items)
Map coordinate systems
(3 items)
Natural resource exploration
(2 items)
Natural resource extraction
(1 items)
Natural resources
(77 items)
Organism groupings (non-taxonomic)
(91 items)
Organisms
(147 items)
Population and community ecology
(446 items)
Water properties
(120 items)
Water quality
(97 items)
