GIS Dictionary

1 [surveying] A predefined path or route across or over a set of geometric coordinates. 2 [surveying] A method of […]

[ESRI software] In ArcMap and Survey Analyst for field measurements, a group of observed values that define a new coordinate.

A common data structure consisting of a set of nodesbasic units of datalinked hierarchically. Each node can contain one or

[spatial statistics use for geostatistics] In a spatial model, nonrandom variation in the value of a variable that can be

A surface interpolation method that fits a polynomial surface by least-squares regression through the sample data points. This method results

1 [Euclidean geometry] Any closed, three-sided, two-dimensional polygon. 2 [Euclidean geometry] A face on a TIN surface. Each triangle on

[surveying] Locating positions on the earth’s surface using the principle that if the measures of one side and the two

[ESRI software] A piece of code in a database management system (DBMS) that executes in response to data being modified

[ESRI software] An operator within the Raster Calculator of ArcGIS Spatial Analyst that performs various trigonometric calculations on the values

[surveying] Determining the position of a point on the earth’s surface with respect to two other points by measuring the

[navigation] A bearing measured relative to true north.