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Blueline Geo
Surveyor Dictionary
Administrative Determination of Value
Nov 3rd
Administrative Determination of Value: This is not an appraisal and therefore there should be a commensurately lesser degree of investigation and analysis required. At a minimum, the property should be inspected and the preparer should secure basic comparable sales data. Sales verification and deed research should not be necessary. It is therefore anticipated that this format can be completed in an abbreviated time frame, in order to permit accelerated negotiations. It should be noted that owner accompaniment is not required, but may be accommodated by the preparer/ valuer, depending upon the situation and time permitting. Source Section 24.102(c) of 49 CFR.
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Control station, Coordinates, Origin of coordinates, Culture
Nov 3rd
control station
Point on the ground whose position (horizontal or vertical) is known and can be used as a base for additional survey work.
coordinates
Linear and (or) angular quantities that designate the position of a point in relation to a given reference frame.
coordinates, origin of
Points in a system of coordinates which serves as a zero point in computing the system’s elements or in prescribing its use.
culture
Features constructed by man that are under, on, or above the ground which are delineated on a map. These include roads, trails, buildings, canals, sewer systems, and boundary lines. In a broad sense, the term also applies to all names, other identification, and legends on a map.
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Control Mapping Definition
Nov 3rd
control mapping
Points of established position or elevation, or both, which are used to fix references in positioning and correlating map features. Fundamental control is provided by stations in the national networks of triangulation and traverse (horizontal control) and leveling (vertical control). Usually it is necessary to extend geodetic surveys, based on fundamental stations, over the area to be mapped, to provide a suitable density and distribution of control points. Supplemental control points are those needed to relate the aerial photographs used for mapping with the system of ground control. These points must be positively photoidentified; that is, the points must be positively correlated with their images on the photographs.
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Nautical Chart Definition
Nov 3rd
chart, nautical
Representation of a portion of the navigable waters of the Earth and adjacent coastal areas on a specified map projection and designed specifically to meet requirements for marine navigation. Included on most nautical charts are depths of water, characteristics of the bottom, elevations of selected topographic features, general configurations and characteristics of the coast, the shoreline (usually the mean high water line), dangers, obstructions and aids to navigation limited tidal data, and information about magnetic variation in the charted area.
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Cartography definition
Nov 3rd
cartography
Science and art of making maps and charts. The term may be taken broadly as comprising all the steps needed to produce a map: planning, aerial photography, field surveys, photogrammetry, editing, color separation, and multicolor printing. Mapmakers, however, tend to limit use of the term to the map-finishing operations, in which the master manuscript is edited and color separation plates are prepared for lithographic printing.
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Cadastral survey definition
Nov 3rd
cadastral survey
Survey relating to land boundaries, made to create units suitable for title transfer or to define the limitations of title. Derived from “cadastre” meaning a register of land quantities, values, and ownership used levying taxes, the term may properly be applied to surveys of a similar nature outside the public lands, such surveys are more commonly called “land surveys” or “property surveys.”
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