USGS Thesaurus
Categories
Search
Topics
Themes, subjects, and concerns for which USGS information resources are relevant.
Subtopics:
Biological and physical processes
(2029 items)
Contamination and pollution
(28 items)
Culture and demographics
(2 items)
Earth characteristics
(3384 items)
Effects of climate change
(170 items)
Elements
(38 items)
Field monitoring stations
(92 items)
Hazards
(330 items)
Health and disease
(12 items)
Human impacts
(12 items)
Information system design and development
(115 items)
Land use and land cover
(54 items)
Map coordinate systems
(3 items)
Natural resource extraction
(1 items)
Natural resources
(72 items)
Organism groupings (non-taxonomic)
(78 items)
Organisms
(140 items)
Population and community ecology
(407 items)
Water properties
(113 items)
Water quality
(92 items)
