REPORT DATE: 09-03-2019
REPORT TIME: 2345 UTC
REGION: PACIFIC
SUB REGION: ALASKA
AREA/BLOCK: Aleutian Arc  7078
IMAGE DATE: 09-03-2019
IMAGE TIME: 1746 UTC
DATA SOURCE: SENTINEL1A 
MODE: Interferometric Wide (IW) VV
RESOLUTION: 20 meter
LOCATION: 52°02'42" N/172°04'34" W
AREA: 3.36 square kilometers (Updated 05/26/2020)
CONFIDENCE: Medium-High
REMARKS: Possible oil was observed in satellite imagery. This anomaly is unconfirmed as oil. The anomaly was located approximately 35 nmi southeast of the south coast of Seguam Island in the Aleutian island chain of Alaska. It measured approximately 3.37 nmi in length and was up to 0.95 nmi in width. The anomaly was connected to a vessel and had good dark contrast to its surroundings. It also showed unnatural sharp turns. Measured winds at the time of image were 10-15 knots and from the WSW. Confidence was determined to be medium-high given that the anomaly was connected to a point source and had good contrast and sharp turns.

UNCERTAINTIES:
The anomaly could have been the result of fishing activity. Thus, confidence that this was an oil discharge is medium-high.

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

ERMA: https://erma.noaa.gov/arctic/erma.html#/layers=1+47048&x=-172.0526425&y=52.047122&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.