SUBJECT HEADING LIST TO THE CEDB 

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 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

BT = Broader term; NT = Narrower term; RT = Related term; SN = Scope note; UF = Use for
Unauthorized term = Term displayed in []'s

G

Gabions
Gaging stations
            RT: Stream gaging
Gamma function
Gamma rays
[Garages]
            Use: Parking facilities
Gas
            NT: Biogas
            NT: Dissolved gases
            NT: Flue gases
            NT: Natural gas
            NT: Soil gas
Gas flow
            BT: Flow
Gas pipelines
            BT: Pipelines
Gas pressure
            BT: Pressure
Gasification
            NT: Coal gasification
            RT: Volatilization
Gasoline
            BT: Fuels
Gates
            NT: Head gates
Gaussian process
Geodetic surveys
            BT: Surveys
Geographic information systems
            BT: Information systems
Geography
Geogrids   (SN: Rods or ribs made of plastics and formed into a net or grid for soil reinforcement.)
Geoid
[Geologic investigations]
            Use: Subsurface investigations
Geologic mapping
            BT: Mapping
Geological faults
Geological surveys
            BT: Surveys
Geology
            NT: Hydrogeology
            NT: Space geology
Geomaterials
            BT: Materials
Geomembranes   (SN: Impervious polymeric fabrics that usually fabricated into continuous, flexible sheets)
            BT: Membranes
Geometric nonlinearity
Geometry
Geomorphology
            BT: Morphology
Geophysical surveys
            BT: Surveys
Georgia
            BT: United States
Geosynthetics
            UF: [Geotextiles]
Geotechnical engineering
            BT: Engineering
[Geotechnical investigations]
            Use: Subsurface investigations
Geotechnical models
            BT: Models
[Geotextiles]
            Use: Geosynthetics
Germany
Ghana
            BT: Africa
Girders
            NT: Box girders
            NT: Plate girders
            NT: Stub girders
Glacial till
Glass
            NT: Fiberglass
            NT: Window glass
Glass fibers
            BT: Fibers
Glass plates
            BT: Plates
Glass reinforced plastics
            BT: Plastics
Global positioning
            BT: Positioning
Global warming
Glue laminated materials
            BT: Materials
            UF: [Glulam]
[Glues]
            Use: Adhesives
[Glulam]
            Use: Glue laminated materials
Gold
            BT: Metals
Government
            NT: Federal government
            NT: Local governments
            NT: Municipal government
            NT: State government
Government agencies
            NT: Federal agencies
Government policies
            BT: Policies
Grade control structures
            BT: Control structures
Grade separation
            BT: Separation
Gradient
            NT: Hydraulic gradients
            NT: Thermal gradient
Grading, earthwork   Use: Earthwork
[Grading, earthwork]
            Use: Earthwork
Gradually varied flow
            BT: Flow
Graduate study
            RT: Undergraduate study
Grain size
            BT: Size
Grains, material
Granular materials
            BT: Materials
Granular media
Graphic methods
            BT: Methodology
            NT: Hydrographs
            NT: Oceanography
            RT: Digital techniques
            RT: Imaging techniques
            RT: Photography
Graphite fibers
            BT: Fibers
Gravel
Gravity
Gravity foundations
            BT: Foundations
Gravity loads
            BT: Loads
Gravity sewers
            BT: Sewers
Gravity walls
            BT: Walls
Gravity waves
            BT: Waves
[Grazing land]
            Use: Rangeland
[Great Britain]
            Use: United Kingdom
Great Lakes
            BT: Lakes
Greece
            BT: Europe
Greens function
Grid systems
            NT: Geogrids
Grillages
            BT: Footings
Groins, structures
[Ground improvement]
            Use: Soil stabilization
Ground motion
            BT: Motion
            RT: Earthquakes
Groundwater
            BT: Water
Groundwater depletion
Groundwater flow
            BT: Water flow
Groundwater management
            BT: Water management
Groundwater pollution
            BT: Water pollution
Groundwater quality
            BT: Water quality
Groundwater recharge
            RT: Artificial recharge
Groundwater supply
            BT: Water supply
Grouting
            NT: Cement grouting
            NT: Chemical grouting
            NT: Compaction grouting
            NT: Curtain grouting
            NT: Jet grouting
            NT: Soil grouting
Guam
            BT: United States
Guardrails
Guatemala
            BT: Latin America
Guidelines
Guideways
            BT: Highways and roads
Gulf of Mexico
Gulfs
Guyed towers
            BT: Towers
Gypsum

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