Trans Atlantic Flights
Are trans Atlantic flights which pass over Iceland normally controlled by "Reykjavik Center"? I would imagine these flights would normally be assigned a North Atlantic Track (NATs) and Icelandic control only goes up to a certain level?
Now that part of Icelandic airspace is closed, are the NATs effected? are certain NATs not available? Do the oceanic centers create ad hoc alternative routes, or does "Reykjavik Center" step in and coördinate with the respective oceanic centers?
BA49 LHR-SEA currently seems to be taking a southern route past Iceland and then a different route north over Greenland.