90-day Monitoring Report - National Marine Fisheries Service - NOAA
90-day Monitoring Report - National Marine Fisheries Service - NOAA
90-day Monitoring Report - National Marine Fisheries Service - NOAA
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UME04085<br />
R.V Marcus G. Langseth<br />
L-DEO/NMFS<br />
05 January 2012<br />
APPENDIX B:<br />
Basic Summary Data Form<br />
BASIC DATA FORM<br />
LDEO Project Number MGL1112<br />
Seismic Contractor Lamont-Doherty Earth Observatory of Columbia University<br />
Client University of Alaska Geophysics Institute<br />
Area Surveyed During <strong>Report</strong>ing Period Arctic Ocean<br />
Approximately between 72° to 77°N and 160° to 175°W<br />
Survey Type 2D marine seismic<br />
Vessel and/or Rig Name R/V Marcus G. Langseth<br />
Permit Number IHA granted by NMFS on 26 August 2011<br />
Location / Distance of Airgun Deployment 83.3m or 103.3m aft of MMO tower<br />
Water Depth Min 30m<br />
Max 3800m<br />
Dates of project 8 September 2011 THROUGH 9 October 2011<br />
Total time airguns operating – all power levels: 531 hours 50 minute<br />
Time airguns operating at full power on survey lines: 500 hours 44 minutes<br />
Time airguns operating at full/partial power on line changes: 28 hours 31 minutes<br />
Amount of time mitigation gun (40 in³) operations: 1 hour 18 minutes<br />
Amount of time in ramp up: 1 hour 10 minutes<br />
Number <strong>day</strong>time ramp ups: 3<br />
Number of night time ramp ups: 0<br />
Number of ramp ups from mitigation source: 2<br />
Amount of time conducted in airgun testing: 7 minutes<br />
Duration of visual observations: 406 hours 55 minutes<br />
Duration of observations while airguns firing: 298 hours 41 minutes<br />
Duration of observation during airgun silence: 108 hours 14 minutes<br />
Duration of acoustic monitoring: 526 hours 20 minutes<br />
Duration of acoustic monitoring while airguns firing: 525 hours 34 minutes<br />
Duration of acoustic monitoring during airgun silence: 46 minutes<br />
Duration of simultaneous acoustic and visual monitoring: 294 hours 38 minutes<br />
Lead Protected Species Observer: Heidi Ingram<br />
Protected Species Observers: Dara Cameron<br />
Amanda Harrison<br />
Meghan Piercy<br />
Acoustic Observer: Emily Ellis<br />
Native Alaskan North Slope Observer: Reynold Aveoganna<br />
Number of <strong>Marine</strong> Mammals Visually Detected: 42<br />
Number of <strong>Marine</strong> Mammals Acoustically Detected: 0<br />
Number of acoustic detections confirmed by visual sighting: 0<br />
Number of visual sighting confirmed by acoustic detection: 0<br />
List Mitigation Actions (eg. power downs, shutdowns, ramp<br />
up delays) 5 power downs<br />
Duration of operational downtime due to mitigation: 1 hour 32 minutes<br />
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