These piles serve for hydrographic and meteorological measurements within the
baltic sea. They are built in a modular way both the platform and the measuring
devices.
Operation started in 1996 with Oderhaff 1. Oderhaff 2 was added in 1997 and 1998, 1999 there was a third measuring device Meta 2 (Buoy_Oderhaff1), a moorded platform.