Glossary beginning with G

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G

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G.A.S.P.

Generally Accepted Surveying Principles; survey principles and methodologies utilized by competent surveyors in conducting a survey of real property.

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Gabion

A cylindrical basket or container filled with earth, stones, or other material and used in civil engineering works or (formerly) fortifications.

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Gable

The triangular upper part of a wall at the end of a ridged roof.

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Gaps/Overlaps in Title

This condition arises when portions of property are described from two directions. When there is a gap and two parcels do not meet, neither parcel has title to the surplus since the original grantor did not sell it.

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Gauging Station

The site on a stream , lake or canal where hydrologic data is collected.

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Geo-referencing

To determine the coordinates for a point with respect to the NAD83CSRS.

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Geocoding

The process of assigning a geographic code to a record, event or occurrence.

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Geodesy

The science which treats mathematically the shape and size of the earth.

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Geodetic

Measurements based on a mathematical model of the earth's surface.

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Geodetic Datum

A set of constants specifying the coordinate system used for geodetic control.

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Geodetic Surveying

The creation or measurement of geodetic control networks in a three dimensional space; integral to a mathematical model of the earth's surface.

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Geographic Information Management

The group of activities relating to the planning, development, implementation and administration of systems for the acquisition, integration, evaluation, storage, security, retrieval, dissemination, archiving and disposal of data and associated attributes that are spatially referenced.

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Geographic Information System (GIS)

A map-based database management system which uses a spatial reference system for analysis and mapping purposes.

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Geographic Location

Property location in respect to the original surveyed lot and concession or lot and registered plan.

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Geoid

The figure of the earth considered as a sea level surface extended continuously through the continents. It is a theoretically continuous surface that is perpendicular at every point to the direction of gravity (the plumbline).

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Geometry

The branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogues.

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Geowarehouse

A web-based, centralized property information source that provides mapping and research tools.

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Good and Marketable Title

An expectation that can be transferred to a new owner without the likelihood that claims will be made on it by another party. The concept is crucial in all real estate transactions because buyers generally expect to receive property to which no one else can lay claim; they do not expect that their ownership will later be challenged.

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Gore

A triangular piece of land, defined by survey of adjacent properties. Loosely, an overlap or gap between properties, blocks of land or even townships.

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GPS

Global Positioning System, an accurate worldwide navigational and surveying facility based on the reception of signals from an array of orbiting satellites.

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Grade

(1) Commonly used to refer to elevation; (2) Act of moving or relating soil to conform to a drainage design.

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Grading

The work of ensuring a level base, or one with a specified slope, for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.

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Grant

The legal process and documents involved in the transfer of ownership of a piece of land or other property.

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Grantee

The person to whom a grant is made. The purchaser or recipient on a deed.

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Grantor

A person, firm or corporation granting or conveying land.

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Graphic Representation

A representation produced by electrical, electronic, photographic or printing method and includes a representation produced on a video display terminal.

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Great Lakes Basin

Refers to the watershed of the great lakes and the St. Lawrence River upstream from Trois Rivieres, Quebec and all bodies of water therein.

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Green Belt

An area of open land around a city, on which building is restricted.

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Greenwich Meridian

The Prime Meridian. The meridian which passes through the original site of the Royal Observatory at Greenwich, England.

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Grey Water

Domestic wastewater other than that containing human excrete, such as sink drainage, washing machine discharge or bath water.

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Gross Floor Area (GFA)

The floor area within the inside perimeter of the exterior walls of the building under consideration, exclusive of vent shafts and interior courts, without deduction for corridors, stairways, closets, the thickness of interior walls, columns or other features. The floor area of a building, or portion thereof, not provided with surrounding exterior walls shall be the usable area under the horizontal projection of the roof or floor above.

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Gross Leasable Area (GLA)

Used in retail leasing. Generally the floor area available for the exclusive use of a retail tenant measured to the outside face of exterior walls and the centerline of demising walls separating tenants. It includes basements and mezzanines.

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Groundwater

Water occurring in the zone of saturation in an aquifer or soil.

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Guarantee of Title

A certification which insures that the title exists in fact as described. (American term)

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Gunter's Chain

Old surveyor's measurement tool; see definition of "chain".

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