GIS Dictionary

[cartography] A line on a map connecting points of equal difference from a normal value, usually a meteorological value such as average temperature.

1 [cartography] An isoline drawn according to values that can occur at points; an isometric line. 2 [cartography] A line connecting points of equal value on a map; an isoline.

[standards] Abbreviation for International Organization for Standardization. A federation of national standards institutes from 145 countries that works with international organizations, governments, industries, businesses, and consumer representatives to define and … Read more

A line on a weather map connecting places of equal barometric pressure.

1 [cartography] A line on a map connecting points of equal elapsed time; especially, travel time to or from a given location. 2 [cartography] A line on a map connecting … Read more

[cartography] A line on a map connecting points of equal rainfall.

[ESRI software] A setting in a database management system (DBMS) that defines how much an application process is isolated from other concurrently executing processes in a DBMS. It specifies the … Read more

[cartography] A line connecting points of equal value on a map. Isolines fall into two classes: those in which the values actually exist at points, such as temperature or elevation … Read more

[cartography] An isoline drawn according to known values, either sampled or derived, that can occur at points. Examples of sampled quantities that can occur at points are elevation above sea … Read more

[cartography] An isoline drawn according to known values that can only be recorded for areas, not points. Examples include population per square mile or the ratio of residential land to … Read more

A line on a map connecting points of equal temperature.

[analysisgeoprocessing] Having uniform spatial distribution of movement or properties, usually across a surface.

[spatial statistics use for geostatistics] A property of a natural process or data where spatial dependence (autocorrelation) changes only with the distance between two locationsdirection is unimportant.