Abstract: A method for selecting conifer trees is disclosed. This method relates to the early measurement of tree characteristics for selecting trees most likely to exhibit certain traits as they mature. This method can be used for implementing silvicultural treatments, thinning or further breeding.

Abstract: A distributed lightning detection system comprises a plurality of lightning detection stations located at different positions with respect to a common frame of reference with the position of at least one detection station being mobile with respect to the common frame of reference. Each station includes a lightning strike detector, first and second receivers, a processor, and a transmitter. The first receiver receives signals from at least one common transmitting system, preferably the GPS system, for establishing a common lightning position and occurrence time frame of references for all of the stations. The processor is governed by a strike indication signal generated by the detector and determines the time of occurrence of the detected lightning strike and the station's own position corresponding thereto.