1. A computer-implemented method of generating a data representation of a geographical region as an adjunct to conducting autonomous operations within the region, the method comprising: a) receiving information specifying a hierarchy of localized zones having operation-defined geographical boundaries within the region, the hierarchy determined by respective spatial locations of the localized zones in the region; b) receiving heterogeneous data descriptive of the region from a plurality of sensors, the heterogeneous data including data relating to a mobile equipment unit; and in a processing system configured with a hierarchy of model compilers corresponding to the localized zones, performing the operations of: c) associating the received data with respective localized zones, and associating received data relating to the mobile equipment unit with a localized zone in which the mobile equipment unit is located; d) fusing the received data associated with the respective localized zones into data representations of the plurality of localized zones; e) integrating the data representations of the localized zones into a common data representation of the geographical region, wherein the common data representation is generated as an adjunct to conducting autonomous operations within the region; and f) providing information from the data representations to a control system that controls the autonomous operations within the region.