Dickinson, D.J. 1973 Aerial infra-red survey of Kawerau, Rotorua and Taupo urban areas - 1972. : . Report / Geophysics Division 89 53p.
Abstract: In 1972 an airborne infra-red survey covering about 63 sq km was flown over various areas of the North Island Hydrothermal region. Information gained has formed the basis of maps showing the location of surface hydrothermal features in urban areas and adjacent rural land. Two ranges of surface temperatures were recorded, 1 to 3 deg C, and 3 deg C and greater, above the normal background temperature (auth.)