GRB

The difference between the line of collimation and level line during levelling, it affects heigh measurements and can be more apparent over long distances.

Where rate of change for variables are not constant, i.e. as one constant increases the other would also increase until a certain point where it will decrease, shape of graph is generally in the shape of a curve or parabola.

Earth moving process of construction, where materials from cut matches materials required to fill embankments.

See definition on Mask Angle.

The Unknown number of whole wavelengths (integer number of wavelength) between the reciever and satellite within a set of measurements.

Discontinuity of integer number of cycles due to temporary loss of signal.

Error in EDM directly related to wavelengths, its magnitude is dependent on the phase differnce.

Sudden loss of locked signal one or more carriers, causes a jump in the integer number of cycles (Cycle Ambiguity).

3D coordinate system that specifies point positions from a chose reference axis, specified by: radial distance (radius), angular coordinate measured from azimuth, height (r, θ, z).

Projections where a cylinder is wraped around the Earth and features are mapped onto the cylinder's surface.

Cyan, Yellow, Magenta, Black

Coastal Zone Colour Scanner

Method for computing flow direction by selecting the tirangle with the steepest slope in a raster and using this as the flow direction.

Arc with the same polygon on left and right side and a Dangling Node at the end.

Node at the end of an arc, not connected to other arcs.

Law describing flow of fluid through porus medium.

A continual current of electons independent of incident light intensity and dependent on the temperature.

Thematic Mapping, display of volumetric (numeric) data through the use of areal symbols (e.g., population density map).

Examining the data using various viewing and interpretation devices to analyze pictorial data and/or a computer to analyze digital sensor data.

Modles, policies, rules and standard to govern data (including data collection, data storage, data integration, data organnization/structuring).

Process of correcting and/or removing corrupted/inaccurate data.

Reducing size of data for transmission.

Use for storing objects to allow for easy access, generally data/objects in the same container has similar characteristics.

Data import-export between systems. Type: 1) Direct Translation 2) Switchyard Conversion 3) Neural Exchange Format

Process of combining data from various sources into a meaning set of information.

Condition of database, data should reflect reality (accurate and timely data) and consistent.

Device to record data over time or location via external instruments and/or sensors.

The process of combining relevant data from different sources into a single whole.

See definitionon Navigation Message.

Process of examining existing database (sources of data) to generate new knowledge/information.

Process of formalizing data by defining rules for which data are to be organized, queried and updated.

Process of organizing fields and tables in a relational database to minimize redundancy and/or dependency.

Fitness of data to serve the purpose.

Metadata category, information about dataset quality (e.g., accuracy, completeness, etc…).

The transformation of numerical or alphabetical digital information derived empirically or experimentally into a corrected, ordered, and simplified form.

The creation of an approximating function which aims to record important patterns in the data, while leaving out noise or other fine-scale structures.

Way of organizing data in the computer system for efficiency of retrieval and manipulation.

The conversion of a set of data values from a type of data format of a original data system into another data format or another destination data system.

Store that has accumulated vast amount (range) of data.

Design model for database (data tables). Type: 1) Flat File 2) Hierarchical 3) Network 4) Relational

Computer software for managing database, handling the storage, retrieval, and update (insert, alteration and deletion) of data.

A procedure aims at improving the overall performance of a database, and lessen the load on the hosting server.

Standard position for reference.

Difference in coordinates between datums.

Database Management System

Direct Current

Intrinsic load of vehicle or structure without the burden of passengers or goods, can include permanent load (weights) on structure/vehicle.

Situation a database trying to access locked data from another database, preventing access to the resource and can cause malfunction in both databases.

Removal of errors in programs.

Measure of intensity of sound or power level of electronic signals, the degree of loudness.