Robinson, R. 1994 Radon observations at Wellington : history and correction for environmental factors . Lower Hutt: Institute of Geological & Nuclear Sciences Institute of Geological & Nuclear Sciences science report 94/40 21 p.
Abstract: The radon content of air in a 60 m deep well at Wellington has been monitored since 1982. The purpose was to investigate radon variations as precursors to earthquakes. A variety of instruments has been used and there are several significant data gaps. Relative sensitivity of the instruments has been determined by comparing their sensitivity to changes in atmospheric pressure. Normalised data, for the entire period of observation, has been corrected for environmental changes using a combination of linear regression and neural-network techniques. (auth.)