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TGS Seismic Survey Visual Sightings in Chukchi Sea 2013
Cate, J.R., M. Smultea, M. Blees, M. Larson, S. Simpson, T. Jefferson and D. Steckler. 2014. 90-Day Report of Marine Mammal Monitoring and Mitigation during a 2D Seismic Survey by TGS in the Chukchi Sea, August through October 2013. AES Doc. No. 15416-04 13-185. Prepared by ASRC Energy Services, Smultea Environmental Sciences, Clymene Enterprises and Entiat River Technologies for TGS-NOPEC Geophysical Company, National Marine Fisheries Service and U.S> Fish and Wildlife Service. 122 p. + Appendices
Contact: Marine Laboratory, more

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Archived data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

TGS-NOPEC Geophysical Company (TGS) conducted a 2D marine seismic survey along predetermined lines in U.S. Federal and international waters of the Chukchi Sea during the open-water season from 25 August to 30 October 2013. Two vessels were involved including 1) a seismic vessel (Geo Arctic) towing a 3,280 seismic array and 8,100 m long solid streamer cable and 2) a marine mammal monitoring vessel (Norseman) which operated in advance of the seismic vessel. more

Both vessels had teams of visual protected species observers (PSOs) trained to monitor and implement seismic mitigation according to regulatory permits from U.S. Agencies. A combined-vessel total of 480 visual sightings occurred over 30,798 km of combined-vessel observer effort (both on and off effort). In addition to visual observers, the monitoring vessel also employed a towed passive acoustic monitoring (PAM) system. This dataset includes visual sighting data and acoustic data is presented separately. Supplemental infomation: In numeric or date/time fields, original data may contain 'X' which was replaced with Null.

Biology > Mammals
Marine, INE, USA, Alaska, Cetacea

Geographical coverage
INE, USA, Alaska

Temporal coverage
26 August 2013 - 30 October 2013

Taxonomic coverage
Cetacea [WoRMS]

Occurrence of biota

Duke University; Nicholas School of the Environment and Earth Sciences; Marine Laboratory, more
TGS-NOPEC Geophysical Company; Arcis Seismic Solutions (Arcis), moredata creator

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more

Based on this dataset:
Cate, J. et al. (2014). 90-day report of marine mammal monitoring and mitigation during a 2D seismic survey by TGS-NOPEC geophysical company in the Chukchi Sea, August through October 2013. TGS-NOPEC Geophysical Company: Houston. 114 + appendices pp., more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2015-03-27
Information last updated: 2015-03-27
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