Sonar presence Binary (1/0): 0 if no sonar in the preceding Only spres.1hr over 1 hour Presence/absence of 60 and current 1-min used for sonar pings segments, 1 if at least 1 sonar ping with other terms >1 ping Binary (1/0): 0 if 0 or 1 sonar ping detected Only scount2plus.1hr over 1 hour Presence/absence of in the preceding 60 and used for sonar pings current 1-min segments, 1 if more than 1 with terms Cumulative Same as above for 1-min cumsel.1hr cumsel SEL_dB over except over 60 segments 1 hour minutes without (unweighted) pings in previous 60 minutes we use with spres.1hr Cumulative Lag is time lag in bels <- SEL/10 for 1-min cumsel.1hrw SEL_dB over minutes between intensity <- 10^bels segments 1 hour sonar pings and 1-min without (weighted) segment. pings in Using exp(-lag*3/60) cumsel.1hrw <- 10 * previous as a weight ensures 60 that after 60 minutes minutes weight is negligible we use with spres.1hr Variability Standard Standard deviation of sd(SEL of pings that fall for 1-min sdsel.1hr deviation of all SEL values that within 60 minutes before segments SEL_dB occurred within the respective 1-min segment) with 0 or (unweighted) last hour (each with only 1 equal weight) ping in previous 60 minutes we use
Sonar presence over 1 hour spres.1hr Binary (1/0): Presence/absence of sonar pings 0 if no sonar in the preceding 60 and current 1-min segments, 1 if at least 1 sonar ping Only used for with other terms >1 ping over 1 hour scount2plus.1hr Binary (1/0): Presence/absence of sonar pings 0 if 0 or 1 sonar ping detected in the preceding 60 and current 1-min segments, 1 if more than 1 Only used for with terms Cumulative SEL_dB over 1 hour (unweighted) cumsel.1hr Same as cumsel above except over 60 minutes for 1-min segments without pings in previous 60 minutes we use with spres.1hr Cumulative SEL_dB over 1 hour (weighted) cumsel.1hrw Lag is time lag in minutes between sonar pings and 1-min segment. Using exp(-lag*3/60) as a weight ensures that after 60 minutes weight is negligible bels <- SEL/10 intensity <- 10^bels cumsel.1hrw <- 10 * for 1-min segments without pings in previous 60 minutes we use with spres.1hr Variability Standard deviation of SEL_dB (unweighted) sdsel.1hr Standard deviation of all SEL values that occurred within the last hour (each with equal weight) sd(SEL of pings that fall within 60 minutes before respective 1-min segment) for 1-min segments with 0 or only 1 ping in previous 60 minutes we use
BaumannPickeringMPLTM620-2018.docx