Construction of the observatory
Because NM-III was built about 5 km away from the former Neumayer-II there was also the need for a new construction of the geomagnetic observatory. The observatory is located some 1.5 km south of NM-III and installed in a deep trench in the firn. The trench is 12 meters long, 5 meters wide and the original depth from the surface to the bottom measured about 8 meters. The trench was covered by strong wooden construction beams and plywood boards.