I just found the Shell fleet AFFINITY, TOR VIKING, NANUQ, and FENNICA, and the F/V AQUILA all off Wainwright at about Lat. 71-04N Long.160-49W.
Still no AIS at Dutch
Are you referring to Marine traffic?
Yes, Marinetraffic and Shipspotting. They show nothing around Dutch. Shipspotting did not show the vessels up north, but Marinetraffic did.
Is the Noble Discover still in Dutch?
Have you looked at the shore stations there? Are there any? If so, are they ‘red’ or out of service?
If this area depends upon vessels to be participating then it may just be dumb luck. But if there are shore stations who regularly participate they should show up, even if off or out of commission.
The phone app does not have that ability. The PC app website does.
Never has been anything in western Alaska exept Dutch and Valdez a few months back. My guess it that the Nanuq is transmitting the signal.
I saw the CGC HEALEY and NANUQ transiting the Bearing Strait northbound together on August 12th. There was still AIS cover of Dutch at that time. I think you are right that NANUQ is retransmitting AIS data to Marinetraffic. But there must have been someone else also retransmitting in Dutch.
Here is yesterday’s ice location: http://arctic.atmos.uiuc.edu/cryosphere/NEWIMAGES/arctic.seaice.color.003.png
Here is the all time record low area of ice coverage compared to historical records: http://arctic.atmos.uiuc.edu/cryosphere/arctic.sea.ice.interactive.html
not really interested enough to research it right now (KVH is really slow here) but my understanding is that in the early 2000’s, with the proliferation of the Europead Galileo GPS system, GPS 3, and the availaibility of Glosnass and other foreign provided systems it was determined that selected availability was a moot feature and too many critical systems rely on accurate GPS sugnals now that it was considered dangerous and they the ability to (officially) enable it was removed. if anyone has better info or is interested in researching, i’m not going to stand firmly behind this, its a subject i vaguely remember from my Academy days.
Regarding dutch… one of the vessels was relaying to vessel tracker, otherwise, my experience here is that it hasnt been otherwise publicly available, coverage areas for most of the AIS tracking systems sowe a black out for all but cook inlet. And almost all of the shell vessels have left DH.
not really interested enough to research it right now (KVH is really slow here) but my understanding is that in the early 2000’s, with the proliferation of the Europead Galileo GPS system, GPS 3, and the availaibility of Glosnass and other foreign provided systems it was determined that selected availability was a moot feature and too many critical systems rely on accurate GPS sugnals now that it was considered dangerous and they the ability to (officially) enable it was removed. if anyone has better info or is interested in researching, i’m not going to stand firmly behind this, its a subject i vaguely remember from my Academy days.
Regarding dutch… one of the vessels was relaying to vessel tracker, otherwise, my experience here is that it hasnt been otherwise publicly available, coverage areas for most of the AIS tracking systems sowe a black out for all but cook inlet. And almost all of the shell vessels have left DH.
Supposedly the Marine Exchange of Alaska has good coastal AIS coverage, but its a fee based subscription only service. Is anyone on gcaptain a subscriber?