Geographic Abbreviations and Acronyms
- AARLSArkansas Association of Registered Land Surveyors
- AARSAsian Association on Remote Sensing
- AARSEAfrican Association for the Remote Sensing of the Environment
- AbzwAbzweigstelle
- Accu-DRAPEHigh-accuracy DEM Draped Images
- AccuDEMHigh-accuracy DEM
- ACIUAllied Central Interpretation Unit
- ACM-SIGGRAPHAssociation for Computing Machinery Special Interest Group on Graphics
- ACMGISAssociation for Computing Machinery Geographic Information Systems
- ACMLAssociation of Canadian Map Libraries
- ACMSAutomated Census Mapping System
- ACOEArmy Corps of Engineers
- ACRESAustralian Centre for Remote Sensing
- ACSADArab Center for the Studies of Arid Zones and Dry Lands
- ACSTTOAssociation of Certified Survey Technicians and Technologists of Ontario
- Ad.St.Aldolf Stieler
- ADM1First-order administrative division
- ADM2Second-order administrative division
- ADPDPAlaska Division of Policy Development and Planning
- ADRGARC Digitized Raster Graphic
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