The Strategy of GNSS CORS Processing in Southern Sumatera

The establishment of the GNSS Continuously Operating Reference System (CORS) station in Indonesia has given an advantage to wider applications. Ranging from preserving the national spatial reference system, supporting cadastral surveys, and observing natural disasters. The trend of CORS applications is to monitor crustal deformation, discover active tectonics, and study earthquake phenomena. The utilization of GAMIT/GLOBK software has exceeded other GNSS processing software for many applications. This study will elaborate on the strategy and required steps for performing multi-year CORS processing in southern Sumatera, as well as evaluate GAMIT results. Through 19 local CORS stations and 7 IGS stations, alongside setting up several control files, we have successfully created velocity maps and monitored the deformation of each CORS station in Southern Sumatera.