How is 'field mapping' defined in GIS?

Field mapping in GIS refers to the process of identifying and representing real-world features through the use of data fields. This involves capturing geographic information and linking attributes or characteristics through data structures known as "fields." Each field contains a specific type of data that describes a particular attribute of the spatial features being mapped, such as names, values, or other relevant information. This method allows for the effective visualization and analysis of geographic phenomena, helping users understand the spatial relationships and patterns present in the data.

This option highlights the core function of field mapping, which is to create a meaningful representation of physical features in the environment, facilitating better decision-making and problem-solving in various domains such as urban planning, environmental management, and resource allocation. The other choices, while related to data analysis and interpretation, do not accurately capture the specific definition and process of field mapping within the context of GIS.