Remote sensing progress overseas

The Physics Department of the University of Newcastle has owned and operated a Daedalus (USA) airborne thermal infrared line scanner for the past 4 years. Most of the work, which has ranged over the eastern half of Australia, New Guinea and Bouganville, has utilised the 8-14/µm waveband. A 3-5/µm detector can be interchanged with the longer band width detector, but because the 3-5 band is likely to pick up some reflected solar radiation, whereas the 8-14 band gives almost pure earth radiated energy, the latter has been found more generally useful.