GIS Dictionary

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subfield

[programming] In ArcGIS, a subset of all the fields associated with a layer or data.

Subject Matter Expert

[empty] (Pronounced “smee”) This person is usually from Development or Products who specializes in the software, workflow, or subject matter

sublayer

[ESRI software] One of several layers that are part of a group layer in a map document.

subsumption

[ESRI software] Within a geometric network, the replacement of an orphan junction by a non-orphan junction from a user-defined feature

subtractive primary colors

[graphics computing] In printing, the three primary colorscyan, magenta, and yellowthat when used as filters for white light remove blue,

subtype

[database structures] In geodatabases, a subset of features in a feature class or objects in a table that share the

suitability model

[modeling] A model that weights locations relative to each other based on given criteria. Suitability models might aid in finding

supplemental contour

[cartography] A contour line placed between regularly spaced contours, used when the terrain change is not large enough to be

surface

[data models] A geographic phenomenon represented as a set of continuous data (such as elevation, geological boundaries, or air pollution);

surface fitting

[spatial statistics use for geostatistics] Generating a statistical surface that approximates the values of a set of known x,y,z points.

surface smoothness

[ESRI software] Perpendicular or normal to the slope of the surface in 3D Analyst. As changes in slope are approached

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