NODC Standard Format Herring Survey Population Density and Distribution (F057) Data (1976-1977) (NCEI Accession 0014189)
The data type contains data from aircraft surveys of herring schools. These data were collected to provide information on herring population density and distribution.  Start date and time, start and end positions, and aircraft type, altitude and airspeed were reported for each survey.  Surveys were conducted for …