GRB

AJAX progress indicator
Search: (clear)
  • s

  • Standard Error
    See definition on Standard Deviation.
  • Standard Line
    Line on sphere with no distortion (length expansion/compression) after projection, generally in the form of the equator/standard parallel or central meridian.
  • Standards
    Certain level of quality as described by industry.
  • Static Model
    Model dealing with data at a specific state (e.g., data at a specific time).
  • Static Positioning
    Determination of position where receivers are stationary on Earth's surface.
  • Static Survey
    Where at least two stationary GPS recievers simultaneously and continuously cleect data from the same constellation of satellites during a long observation session.
  • Statistical Map
    Map showing variation in quantity (statistics) for specified area, generally expressed as a choropleth map.
  • Statutory Liability
    Liability of the party held responsible for actions or omissions due to related law.
  • Stefan-Boltzmann Law
    M=σT4,To express the amount of energy an object radiates, where M=total radiant exitance from the surface of material, σ=Stefan-Boltzmann constant,5.6697*10-8 Wm-2 K-4
  • Stepped Frequency
    Where frequency of signal changes in descrete, repeatable and stable steps.
  • Stereographic Projection
    Map Projection, where angular and circular properties are preserved.
  • Stereopair
    Steropair is a pair of stereo photographs taken form the same area but differen position,consisting of adjacent pair of overlapping vertical photographs in the stereoscopic coverage
  • Stereoplotting
    The plotting of a map from aerial photographs taken by a stereoscopic device
  • Steroscopy
    A technique used to create or enhance the illusion of depth in an image.
  • Stilling Well
    An installation, usually in form of a circular pipe, that is connected to a canal/ditch/stream by an inlet pipe, used to measure water stages without the effect of surges or choppy waters.
  • Stippling
    Creation of patterns in varying shades (solidarity) using dots.
  • Stochastic Error
    A term added to a regression equation to introduce all variations in Y that cannot be explaines, including the Xs.
  • Stochastic Interpolation
    Interpolation based on assessment of prediction errors and estimated variances.
  • Stochastic Model
    Mathematical model that takes into account randomness in variables.
  • Stochastic Signal
    Signal with some degree of uncertainty.
  • Stop-and-Go Positioning
    See definition on Kinematic Survey/Method.
  • Stopcock
    Valve to restrict flow of liquid or gas through a pipe.
  • Stratified Sampling
    Usually used in census and population surveys, it is a process for dividing the full survey area into stratas (sub-regions with population of simiar characteristics) then sampling the sub-regions in proportion to its contribution to the overall picture.
  • String
    A sequence of textual values (alphbets, numbers, symbols) that can have fixed length.
  • Strips
    Strips are parts of successive flight which is for large site study. Multiple strips comprise block.
  • Structured Query Language
    Data manipulation and query language designed for relational databases.
  • Structured Systems Analysis and Design Methodology
    See definition on Hard Systems Analysis.
  • Sub-bottom Profiling
    Use of low frequency SONAR to enable acoustic beams to penetrate seafloor, to enable characterization and identification of layers of sediments under seafloor.
  • Sub-struction
    Underlying structure or supporting part during fabrication.
  • Subdivision
    Act of dividing land into parcels for urban planning.
  • Subdivision Surveys
    Type of Cadastral Survey, used to establish ownership boundary for new lots/boundary.
  • Substantial knowledge
    The lowest level of understanding in which there relationships between basic concepts and interrelated disciplines are established.
  • Subsurface Utilities
    Utility network under ground surface (buried).
  • Summarize
    To briefly refine essential elements from the detailed content.
  • Supervised Classification
    A tool used to extract quantitative information from remote sensing image with the operator's professional knowledge and experience, corresponding to unsupervised classification
  • Surface Analysis
    Analyzing properties of physical surfaces displayed on Image/Map
  • Surge
    Horizontal, linear longitudinal movement (front-back) on X-axis.
  • Survey Adjustment
    Mathematical processes of adjusting measurements from survey.
  • Survey Standards
    Control over accuracy and precision of survey data.
  • Suspended Sediment
    Particles suspended in water.
  • Sustainability
    Ability to sustain, to have long-term support.
  • SVG
    Scalable Vector Graphics
  • Swath
    A strip/land on seafloor scanned by Swath System.
  • Swath System
    A class of SONAR using a multi-beam system to obtain sounding information from a single ship's track.
  • Sway
    Horizontal, linear lateral movement (left-right, side-to-side) on Y-axis.
  • Sweep
    Scanning of designated area to verify presence of objects under land/water surface.
  • Sweep System
    Multiple single-beam echosounder placed along the boom of a vessel, enabling a larger coverage of the seabed.
  • Swell
    Similar to waves, it is a character of water, but it can grow over time and will not break in open waters.
  • Switchyard Conversion
    Data Exchange, where data is first translated into one internal standard then depending on output system, it translates the internal standard to the suitable output format.
  • Symbolization
    Representation of objects and/or real-life phenomena with pictorial and/or geometric symbols.