This definition appears very rarely
See other definitions of SACS
Samples in periodicals archive:
Support to Aviation Control Service (SACS) The objective of SACS is to deliver in near-real time data from space-based instruments regarding SO
Support to Aviation Control Service A plume of steam and ash rises above Popocaté-petl in Mexico (summit: 5426 m), whose Aztec name means "Smoking Mountain".
ESA projects to support aviation control and avoidance of volcanic ash based; SACS SO 2 & ASH NOTIFICATION; The Support to Aviation Control Service (SACS)...
Wetenschappelijke publicatie Support to Aviation Control Service (SACS): an online service for near-real-time satellite monitoring of volcanic plumes