GRB

LIght Detection and Ranging

Defined from at least two points on an image/map, generally a series of unique (x, y) coordinate.

A type of line-oriented noise problem,numerous adjacent pixels along a line may contain spurious DNs.

Where two or more lines meet.

Imaginary line through optical center of telescope.

Tangent to the level line, it is the line of observation through the crosshair.

Basis for viewshed analysis for determining profile of sightline, whether points are viewable from a certain slope edge.

Linear reference operation of two line feature tables to produce a single table.

Linear referencing overlay operation of a line features table with a point features table to produce a single point table.

GIS operation (vector overlay) where line features of one dataset are overlaid onto polygon datasets to determine location of lines on the polygon.

See definition on Cartogram.

A polynomial function of degree zero or one, or is the zero polynomial

Method of curve fitting using 2 points of given coordinates (x0, y0) and (x1, y1).

Often present in Traverse, they are errors accumulated in the horizontal angle, which can be mathematically adjusted and/or eliminated.

Modelling approach for the relationship between two variables, a scalar variable (y) and independent variable (x).

Expand the range of image levels to fill the total range of the output device

Geometric features on network, a segement defined by two points.

Cost of travelling through a Link (e.g., distance, time).

Type of Traverse, where lines (runs) may start and end at different points (geometrically open but mathematically closed) but both points are required to have a high degree of positional accuracy.

Data structure of an ordered set of data each linking back to its successor and/or predecessor. Type: 1) Single Linked List 2) Doubly Linked List 3) Multiply Linked List 4) Circular Linked List

Land Information System

A product of lithography (lithographic printing), where images are printed from stencil.

The mapping of rock units.

Upper mantle and cruse of the Earth, the rigid out part of the Earth.

Weight of goods and/or people on structures/vehicles.

Lunar Laser Ranging

Leak Noise Correlator

When baselines from a single base station is within close distances (e.g. less than a couple of hundred kilometers) of the roving receivers.

Datum for known points using local reference, generally modelled as a spheriod to closely fit Earth's surface at a particular (local) area.

Expressed in North (meridian plane oriented towards North), East (perpendicular to meridian plane) and Up (normal to ellipsoid at origin), with its origin at a specified point.

Interpolation using a selected sample of known points out of the whole dataset to estimate unknown values.

Cell-by-cell operation.

Local Interpolation method using a selected sample of known points from the whole dataset and a polynomial equation to estimate unknown values.

Process of transforming positional data from a global reference frame to local reference frame.

A particular place or position

Spatial analysis method for solving resource allocation problems by matching demand and supply using objective sets and constraints.

Computer programs/applications with real-time location enabled to allow for provision of information/services to the client. Type: 1) Query-based 2) Push-based

Features on GIS dataset no represented in its true value.

The logarithm of a positive real number x with respect to base b, a positive real number not equal to 1[nb 1], is the exponent by which b must be raised to yield x.

Data design method for arranging data into entities and attributes.

Multiple statements are given which contradict one another.

A type of probablistic statistical classification model used to predic binary response (e.g., presense, absense).

A type of probabilistic statistical classification model.

Hyperbolic radio navigation system to allow receiver to determine position by lienting into low frequency radio signals transmitted from land based radio beacons.

Denoted as (λ), it is an imaginary line at angular distances from Greenwich Meridian, measured as either 0ᵒ - 180ᵒ East or 0ᵒ - 180ᵒ West.

Drawings of existing ground profile along a particular line.

Surveys along Center Line of channel/river.

Wave where particles of medium move in parallel to the direction of the wave (i.e. sound waves).

Often referred to as the error incured in a closed level run or closed traverse.

Route that intersects itself.