the hessdalen automatic measurement station (or hessdalen ams) is an automatically working observation station in the hessdalen area in the municipality of holtÃ¥len in sÃ¸r-trÃ¸ndelag county, norway. it is used for registering hessdalen lights. it has been in service since 7 august 1998, and it is equipped with a magnetometer, two black and white tv cameras, and one colour tv camera. the ams regularly registers light phenomena. since it only measures a restricted numbers of parameters, it is not able to explain all the recordings. ==see also== *Ãstfold university college *ghost lights ==external links== *web page of the hessdalen ams  fi:maavalo
Science_and_technology_in_Norway