Summary
A program for layered model(one-dinmensional) interpretation of audiomagneto- telluric (AMT) measuremants is described. The program is based on least - squares fit and on hyperparabolic optimization. The essential feature of the optimization method is that up to four parameters can be optimized simul- taneously. The program uses nine fixed frequencies from 3700 to 8 Hz, but it can easily be changed for any other frequencies. The program is written in Fortran IV for the computer Hewlett-Packard 3000 of the Geological Survey of Norway.