BIS5 (AK)

BIS5 is a continuously operating reference station in Sitka, Alaska, operated by NOAA's National Geodetic Survey as part of the NGS CORS network. It tracks GPS and GLONASS signals to provide real-time RTK corrections and archived observation data for post-processing applications. Surveyors can use BIS5 for high-accuracy positioning, deformation monitoring, and establishing local control networks i