REPORT DATE: 08-23-2018
REPORT TIME: 0330 UTC
REGION: PACIFIC
SUB REGION: ALASKA
AREA/BLOCK: Gulf of Alaska  6912 
IMAGE DATE: 08-22-2018
IMAGE TIME: 1508 UTC
DATA SOURCE: SENTINEL1B 
MODE: Interferometric Wide (IW) VV
RESOLUTION: 5x20 meter
LOCATION: 55°11'53" N/134°09'38" W
AREA: 6.82 square kilometers (Updated 05/26/2020)
CONFIDENCE: High
REMARKS: Possible oil was observed in satellite imagery. This anomaly is unconfirmed as oil. The anomaly was believed to be oil emanated from a vessel. It was 39.5 nm in length, and 0.15 nm wide on average. Portions of the anomaly showed noticeable widening with increasing distance and the anomaly exhibited feathering, which agreed with the satellite derived wind from WSW at 10 knots . The anomaly had a large contrast with its surroundings. 


UNCERTAINTIES: The anomaly did not widen consistently throughout its entire length. It appeared that there might be a discontinuity in the mid-section of the feature.


ANALYST: ZHU
Maps and shapefiles can be accessed at: www.ospo.noaa.gov/Products/ocean/marinepollution/

ERMA: https://erma.noaa.gov/arctic/erma.html#/layers=1+46652&x=-134.247467&y=55.386961&z=11&panel=layer

For further information on oil spill response and assessment go to: https://response.restoration.noaa.gov/oil-and-chemical-spills/oil-spills

If you would like to share any feedback about this report or have questions, please contact the operational analyst at (301) 683-1403 or send to oceanmap@noaa.gov. Email alerts are available only for federal and state government officials involved in response efforts. Requests to be added to the email alerts should also be sent to oceanmap@noaa.gov. Please allow up to 2 business days to process the request.