terms Sonar lag Integers: number of Each 1-min segment = 0 sonarlag segments since where = 1 (see above); spres last sonar ping otherwise as lag in minutes since last 1-min segment with sonar. Periods after no sonar effort are NA until first sonar ping Peak-to-peak Maximum ppRL per 0 if no pings, if multiple To maxpprl received level 1-min segment. pings fall in 1-min segment, result is the maximum date segments without pings we used with spres Sound Cumulative sound Adding up values (SEL) from for 1-min cumsel exposure level exposure level in dB different pings in the same segments (SEL) for 1-min segment segment: without bels= SEL/10 pings we intensity=10^bels used cumsel = 10 * log10 (sum(intensity)) with spres Proportion of Proportion of 1-min Sum of duration of all sonars sprop segment with sonar (secs) that fall within 1-min segment / 60 secs Noise Received level within Provided in 1-min segments Only RLD_dB measurement the frequency band of blue whale D calls for blue data Day-night Binary (1=day, Using sunrise and sunset DN 0=night) information Length in minutes Integers: 0 for 1-min segment MSR since sunrise in which sunrise occurred Length in minutes Integers: 0 for minute in MSS since sunset which sunset occurred Julian Date in integers Consecutive day of year: jd Year Year of recording year Cumulative
terms Sonar lag sonarlag Integers: number of segments since last sonar ping Each 1-min segment = 0 where spres = 1 (see above); otherwise as lag in minutes since last 1-min segment with sonar. Periods after no sonar effort are NA until first sonar ping Peak-to-peak received level maxpprl Maximum ppRL per 1-min segment. 0 if no pings, if multiple pings fall in 1-min segment, result is the maximum To segments without pings we used with spres Sound exposure level (SEL) cumsel Cumulative sound exposure level in dB for 1-min segment Adding up values (SEL) from different pings in the same segment: bels= SEL/10 intensity=10^bels cumsel = 10 * log10 (sum(intensity)) for 1-min segments without pings we used with spres Proportion of sprop Proportion of 1-min segment with sonar Sum of duration of all sonars (secs) that fall within 1-min segment / 60 secs Noise measurement RLD_dB Received level within the frequency band of blue whale D calls Provided in 1-min segments Only for blue data Day-night DN Binary (1=day, 0=night) Using sunrise and sunset information MSR Length in minutes since sunrise Integers: 0 for 1-min segment in which sunrise occurred MSS Length in minutes since sunset Integers: 0 for minute in which sunset occurred Julian date jd Date in integers Consecutive day of year: Year year Year of recording Cumulative
BaumannPickeringMPLTM620-2018.docx