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Alphabetical index of categories: C

a b C d e f g h i j k l m n o p q r s t u v w x y z

Number of information resources is shown in parentheses after each term.

C -> carbon (7) cabins -> buildings (13) cadastral and legal land descriptions (1) cadmium (3) cairns -> monuments (2) calcareous nannoplankton (1) calderas -> craters (10) camera calibration (1) camera calibration (1) camera tows -> underwater photography (3) field campaigns -> research areas (3) camping -> recreation (6) mining camps -> mine sites (15) canneries -> industrial sites (3) canoeing -> recreation (6) canvassing -> statistical surveying (1) submarine canyons (1) capes (1) capitol buildings (1) capturing (animals) (20) caravan routes -> transportation features (4) carbon (7) carbon-14 analysis (2) carbon cycling (5) carbon dating -> carbon-14 analysis (2) carbon isotope analysis (5) carbon sequestration (6) scientific careers (8) careers in science -> scientific careers (8) carillons -> towers (1) carnivores (6) digital cartographic data -> geospatial datasets (112) cartographic data (digital) -> geospatial datasets (112) digital cartographic datasets -> geospatial datasets (112) cartography (63) digital cartography -> cartography (63) castles -> buildings (13) catalogs and indexes (96) catastrophes -> hazards (169) catchments -> drainage basins (63) cattle dipping tanks -> agricultural sites (6) causeways -> roadways (2) cave entrances -> caves (6) caverns -> caves (6) caves (6) caving -> recreation (6) cays -> islands (13) Cd -> cadmium (3) Ce -> cerium (4) cement plants -> industrial sites (3) animal and plant census (21) census -> animal and plant census (21) faunal and floral census (microscopic) (3) archaeological centers -> research facilities (4) atomic centers -> research facilities (4) business centers -> commercial sites (3) civic centers -> buildings (13) community centers -> buildings (13) convalescent centers -> medical facilities (2) convention centers -> buildings (13) facility centers -> buildings (13) generating centers -> power generation sites (1) medical centers -> medical facilities (2) national centers (3) neighborhood centers -> buildings (13) rehabilitation centers -> medical facilities (2) science centers (51) shopping centers -> commercial sites (3) space centers -> research facilities (4) visitor centers -> buildings (13) Earth Science Information Centers (ESICs) -> reference services (3) cerium (4) cerros -> mountains (6) food chain -> food web (3) polymerase chain reaction (4) climate change (69) climatic change -> climate change (69) effects of climate change (34) global change -> effects of climate change (34) global climate change -> climate change (69) land use change (21) sea-level change (11) climate change effects -> effects of climate change (34) channels (4) lake channels -> channels (4) marine channels -> channels (4) navigation channels -> channels (4) chapparal areas -> shrublands (2) books and book chapters -> reports (106) earth characteristics (415) land surface characteristics (52) ocean bottom characteristics -> sea-floor characteristics (37) ocean characteristics (66) sea-floor characteristics (37) sea floor characteristics -> sea-floor characteristics (37) seafloor characteristics -> sea-floor characteristics (37) baseline characterization -> field inventory and monitoring (382) charts -> maps and atlases (217) checklists (8) chemical analysis (60) chemical element groups (6) chemical elements (56) chemical oceanography -> marine chemistry (5) natural attenuation (harmful chemicals) -> biodegradation (5) environmental chemistry -> biochemistry (11) marine chemistry (5) ocean chemistry -> marine chemistry (5) soil chemistry (4) water chemistry (120) chemistry (Earth sciences) -> geochemistry (176) chemistry (life sciences) -> biochemistry (11) chloride concentration -> salinity (13) chlorine (2) chondrites -> meteorites (4) chromatography (3) gas chromatography (1) high-pressure liquid chromatography -> liquid chromatography (1) liquid chromatography (1) chrome mines -> mine sites (15) chromium (8) chronic wasting disease (3) chronostratigraphy -> geologic history (42) chutes (hydrographic) -> channels (4) cienagas -> wetlands (39) traffic circles -> roadways (2) atmospheric circulation (3) lake circulation -> water circulation (5) ocean circulation (2) water circulation (5) circulation (ocean) -> ocean circulation (2) circulation (water) -> water circulation (5) cities (5) citizen science programs (2) city halls -> buildings (13) civic centers -> buildings (13) civil areas -> administrative areas (8) civil buildings -> buildings (13) Cl -> chlorine (2) terminologies and classifications (25) clay deposits (1) clearinghouses (18) -> information services -> catalogs and indexes clearings -> grasslands (11) cleavage (rock) -> fracture (geologic) (9) climate -> atmospheric and climatic processes (166) climate change (69) effects of climate change (34) global climate change -> climate change (69) climate change effects -> effects of climate change (34) climate effects -> effects of climate change (34) climate history -> climate change (69) climate variability -> climate change (69) climatic change -> climate change (69) atmospheric and climatic processes (166) climatology (28) climbing -> recreation (6) clines -> ecosystems (264) clinics -> medical facilities (2) club houses -> buildings (13) Co -> cobalt (3) coalbed methane resources (11) coal bed methane resources -> coalbed methane resources (11) coal fields -> mineral deposit areas (92) coalfields -> mineral deposit areas (92) coal mines -> mine sites (15) bituminous coal resources -> coal resources (15) coal resources (15) subbituminous coal resources -> coal resources (15) coastal ecosystems (38) coastal erosion (28) -> coastal processes -> erosion coastal fisheries -> marine fishery resources (3) coastal fishing -> marine fishery resources (3) coastal plains -> coastal zones (77) coastal processes (32) coastal zones (77) coast guard stations -> buildings (13) coasts -> coastal zones (77) cobalt (3) coccoliths -> calcareous nannoplankton (1) coconut groves -> woods (1) coelenterates (13) specimen collecting (21) data collection facilities (1) collection management -> data management (5) collection of specimens -> specimen collecting (21) image collections (102) sample collections -> sample repositories (1) college resources (1) collieries -> mine sites (15) agricultural colonies -> populated places (7) colonization (organisms) -> dispersal (organisms) (2) columbium -> niobium (1) comet impact -> impact cratering (1) commemorative areas -> parks (15) commensalism -> symbiosis (1) commerce -> business and economics (11) commercial sites (3) commercial water use (4) commissaries -> buildings (13) commons -> parks (15) commonwealths -> political areas (1) communes -> populated places (7) data communication (2) official communications (19) communities -> populated places (7) community centers -> buildings (13) community ecology (13) population and community ecology (381) community houses -> buildings (13) community relations (1) companies -> commercial sites (3) ecological competition (2) composite burn index (1) -> fire damage -> remote sensing atmospheric composition (11) rock composition -> rocks and deposits (157) dissolved organic compounds (9) computational methods (152) computer program -> scientific software (30) computer programming -> software development (1) computer science (4) chloride concentration -> salinity (13) sea-ice concentration -> sea ice concentration (3) sea ice concentration (3) concession areas -> administrative areas (8) cones (geological) -> physiographic features (237) conference facilities -> buildings (13) conference proceedings (3) conflict resolution methods -> decision support methods (12) confluences -> streams (96) coniferous forests ecosystems -> forest ecosystems (23) conodonts (2) conservation -> natural resource management (273) resource conservation -> natural resource management (273) conservation areas -> reserves (6) conservation genetics (1) -> biological population management -> genetic diversity dissolved constituents -> water quality (341) consulates -> buildings (13) consumers (organisms) (7) consumptive use (water) -> water use (56) geologic contacts (3) contacts (geologic) -> geologic contacts (3) dissolved contaminants -> water quality (341) natural contaminants -> contamination and pollution (182) contaminant transport (25) biocide contamination -> pesticide and herbicide contamination (24) herbicide contamination -> pesticide and herbicide contamination (24) insecticide contamination -> pesticide and herbicide contamination (24) mercury contamination (17) pesticide and herbicide contamination (24) pharmaceutical contamination (3) toxic radionuclide contamination (12) toxic trace element contamination (40) contamination and pollution (182) nitrogen content -> nutrient content (water) (27) phosphorus content -> nutrient content (water) (27) nutrient content (water) (27) oxygen content (water) (13) shelves, continental -> continental margins (11) continental drift -> tectonic processes (21) continental lithosphere (1) continental margins (11) continental rises -> continental margins (11) continental shelves -> continental margins (11) continental slopes -> continental margins (11) structure contours (2) underwater contours -> bathymetry (24) contract research programs -> external research support (4) fire control (2) pest control (1) controlled burns -> controlled fires (2) controlled fires (2) controlled flooding (5) controlled vocabularies -> terminologies and classifications (25) convalescent centers -> medical facilities (2) convention centers -> buildings (13) cooperative agreements -> partnerships (38) cooper works -> industrial sites (3) coordinate systems -> map coordinate systems (3) geographic coordinate systems -> map coordinate systems (3) grid coordinate systems -> map coordinate systems (3) map coordinate systems (3) copper (4) copper mines -> mine sites (15) coral reef ecosystems -> reef ecosystems (23) coral reefs (12) corals -> coelenterates (13) cordilleras -> mountains (6) core (earth) (2) inner core (earth) (1) outer core (earth) (1) core analysis (9) core repositories -> sample repositories (1) core sampling -> drilling and coring (20) ice core sampling (1) -> snow and ice cover -> drilling and coring coring -> drilling and coring (20) drilling and coring (20) corn belts -> agricultural regions (2) corrals -> agricultural sites (6) correlation -> regression analysis (1) corridors -> transportation features (4) cotton gins -> industrial sites (3) cotton plantations -> agricultural sites (6) coulees -> arroyos (2) counties -> countries, 2nd order divisions (1) countries, 2nd order divisions (1) inductively coupled plasma-atomic emission spectrometry -> atomic emission spectroscopy (4) land use and land cover (56) sea ice cover -> sea ice concentration (3) snow and ice cover (19) covered bridges -> bridges (2) covered reservoirs -> reservoirs (14) coves -> bays (14) Cr -> chromium (8) impact cratering (1) crater lakes -> lakes (36) craters (10) craton -> continental lithosphere (1) creeks -> streams (96) tidal creeks -> streams (96) soil creep -> slope processes (30) crenulation (geologic) -> folding (geologic) (1) mountain crests -> mountain summits (1) crevasses -> physiographic features (237) croplands -> agricultural sites (6) cultivated croplands -> agricultural sites (6) crossings -> transportation features (4) crowd sourcing (science) -> citizen science programs (2) crushed stone -> building stone resources (4) crust (earth) (12) crustaceans (11) cryology -> glaciology (8) cryosphere -> snow and ice cover (19) crystallography -> mineralogy (15) crystals -> rocks and deposits (157) CTD measurement (1) Cu -> copper (4) cultivated areas -> agricultural sites (6) cultivated croplands -> agricultural sites (6) culture and demographics (31) culturing (specimens) (1) data curation -> data management (5) digital curation -> data management (5) Curie temperature analysis (1) stream current -> streamflow (157) ocean current measurement (2) -> field inventory and monitoring -> ocean currents stream current monitoring -> stream-gage measurement (137) acoustic doppler current profiler -> acoustic doppler current profiling (2) acoustic doppler current profiling (2) currents -> ocean currents (1) ocean currents (7) ocean currents (1) customer support and user feedback (4) customs houses -> buildings (13) customs posts -> buildings (13) cutoffs (hydrographic) -> channels (4) road cuts -> roadways (2) peat cutting areas -> wetlands (39) CWD -> chronic wasting disease (3) food cycle -> food web (3) hydrologic cycle -> water cycle (5) water cycle (5) wilson cycle -> tectonic processes (21) biogeochemical cycling (14) carbon cycling (5) nutrient cycling (6)

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