“METHOD FOR ESTIMATE AIR WAVE EFFECTS ON MARINE ELECTROMAGNETIC DATA, SYSTEM AND METHOD FOR MEASURING EARTH RESPONSE TO ELECTROMAGNETIC SIGNS AND COMPUTER-READY MEAN”

摘要

improvements in marine exploration. The present invention relates to a method for estimating the effects of an air wave on marine electromagnetic data measured using a source and at least one receiver. The method involves measuring the electromagnetic response at two different underwater source - receiver separations and using measurements at the largest separation to estimate the air wave response at that separation. The effect of the air wave on the response measured at the shortest separation can then be determined using the estimated air wave response at the largest separation.