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Alphabetical index of categories: I

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.

I -> iodine (1) ice -> snow and ice cover (19) icebergs -> ice masses (9) icecap depressions -> ice masses (9) icecap domes -> ice masses (9) icecaps -> ice masses (9) sea ice concentration (3) ice core sampling (1) -> snow and ice cover -> drilling and coring sea ice cover -> sea ice concentration (3) snow and ice cover (19) icefalls -> ice masses (9) ice fields -> ice masses (9) ice masses (9) ice patches -> ice masses (9) ice sheets -> ice masses (9) ichthyology (7) ICP-AES -> atomic emission spectroscopy (4) IFSAR (4) igneous rocks (10) image analysis (6) image collections (102) AVHRR images (4) -> image collections -> AVHRR Landsat images (10) -> image collections -> multispectral imaging remote-sensing images (28) -> remote sensing -> image collections satellite images (28) -> image collections -> remote sensing SSM/I images -> SSM/I (1) airborne imaging -> remote sensing (117) doppler radar imaging (2) hyperspectral imaging (5) infrared imaging (20) microwave imaging (1) multispectral imaging (26) radar imaging (4) satellite imaging -> remote sensing (117) seismic imaging -> seismic methods (44) thermal imaging (2) visible light imaging (5) airborne visible infrared imaging spectrometer -> AVIRIS (3) Moderate-resolution imaging spectroradiometer -> multispectral imaging (26) asteroid impact -> impact cratering (1) bolide impact -> impact cratering (1) comet impact -> impact cratering (1) meteor impact -> impact cratering (1) environmental impact assessment -> environmental assessment (46) impact cratering (1) human impacts (107) impoundment -> water resource management (22) improvement of scientific data usability (1) in-stream water use -> instream water use (9) incinerators -> disposal sites (2) inclines -> physiographic features (237) independent political entities -> political areas (1) composite burn index (1) -> fire damage -> remote sensing catalogs and indexes (96) indexes -> catalogs and indexes (96) index fossils -> fossils (14) indicator species observation -> ecosystem monitoring (62) indigenous species -> native species (5) inductively coupled plasma-atomic emission spectrometry -> atomic emission spectroscopy (4) industrial areas -> industrial sites (3) industrial mineral resources -> nonmetallic mineral resources (16) industrial minerals -> nonmetallic mineral resources (16) industrial parks -> industrial sites (3) industrial pollution (25) industrial sites (3) industrial water use (4) infiltration (water) -> percolation (1) infirmaries -> medical facilities (2) avian influenza (7) biological informatics (4) informatics activities -> information technology methods (20) information architecture (1) Earth Science Information Centers (ESICs) -> reference services (3) information management -> data management (5) geographic information sciences -> geography (159) information sciences (15) information services (82) geographic information system (GIS) datasets -> geospatial datasets (112) information system design and development (43) geographic information systems (GIS) (23) information technology methods (20) infrared imaging (20) airborne visible infrared imaging spectrometer -> AVIRIS (3) inland fishery resources (5) inland seas -> lakes (36) inlets -> channels (4) inner core (earth) (1) inns -> buildings (13) InSAR -> IFSAR (4) careers in science -> scientific careers (8) public participation in scientific research -> citizen science programs (2) insecticide contamination -> pesticide and herbicide contamination (24) insects (20) inspection stations -> buildings (13) institutes -> institutional sites (2) research institutes -> research facilities (4) institutional sites (2) institutional structures and activities (336) institutions -> institutional sites (2) instream water use (9) technical instructions -> manuals (17) instrument design and development (31) insular ecology -> island ecosystems (1) data integration (2) aquifer-surface water interaction -> groundwater and surface-water interaction (5) ground-water/surface-water interaction -> groundwater and surface-water interaction (5) groundwater/surface water interaction -> groundwater and surface-water interaction (5) groundwater and surface-water interaction (5) ocean-atmosphere interaction (7) surface-water/ground-water interaction -> groundwater and surface-water interaction (5) surface water/groundwater interaction -> groundwater and surface-water interaction (5) interagency programs (47) interdisciplinary directorates -> mission directorates (7) interdisciplinary programs (6) interdune troughs -> dunes (5) map interfaces (26) Interferometric Synthetic Aperture Radar (IFSAR) -> IFSAR (4) SAR interferometry -> IFSAR (4) interfluves -> plains (1) intermittent lakes -> lakes (36) intermittent oxbow lakes -> lakes (36) intermittent ponds -> lakes (36) intermittent pools -> lakes (36) intermittent reservoirs -> reservoirs (14) intermittent salt lakes -> lakes (36) intermittent salt ponds -> lakes (36) intermittent streams -> streams (96) intermittent wetlands -> wetlands (39) international programs (9) intersections -> roadways (2) interstices -> porosity (1) intertidal zones -> coastal zones (77) introduced species -> nonindigenous species (52) salt-water intrusion -> saltwater intrusion (6) saltwater intrusion (6) intrusive rocks -> Plutonic rocks (1) invader species -> invasive species (28) invasive species (28) fish inventories (10) -> fish -> field sampling inventory -> field inventory and monitoring (382) field inventory and monitoring (382) invertebrate paleontology (1) invertebrates (63) invertebrate zoology (11) iodine (1) iron (3) iron mines -> mine sites (15) irrigated fields -> agricultural sites (6) irrigation (2) island arcs -> islands (13) island ecosystems (1) islands (13) land-tied islands -> islands (13) mangrove islands -> islands (13) isles -> islands (13) islets -> islands (13) isostasy (1) carbon isotope analysis (5) light stable isotope analysis (14) oxygen isotope analysis (6) stable isotope analysis -> light stable isotope analysis (14) isotopic analysis (23) isotopic tracer study -> tracer study (3) safety issues (human) -> human environmental safety (12)

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