Back to Greenland. A cold, cold land of mountains, snow, and ice. Next door to Iceland. I agree, the naming of places doesn’t make a lot of sense. Perhaps Greenland should be Iceland. And Iceland should be Fireland. Just under the Earth’s crust molten rock sits. It waits for the opportunity to come to the surface.
Iceland is highly volcanic. A land that’s growing and ripping itself apart at the same time. It sits on the Mid Atlantic Ridge[1]. The North American and Eurasian plates are moving away along the line of the Mid Atlantic Ridge. This is global geography. Not economic or social geography but the physical stuff. Ironically, considering the News, the North American plate is moving westward, and the Eurasian plate is moving eastward. Don’t worry this movement is slow.
When flying it’s usually faster to travel East than it is to travel West. A fast-moving band of air known as the jet stream[2] whizzes across the Atlantic. It represents that boundary between the cold polar air and the warmer southern air. The airspace of the North Atlantic (NAT)[3], which links two great continents is busy. There are seven Oceanic Control Areas (OCAs). US, Canada, Norway, Greenland (Denmark), Iceland, Ireland, and The Azores (Portugal) all have a role to play.
Back in the mid-1990s, I worked on Reduced Vertical Separation Minimum (RVSM). Looking at aircraft altimetry to determine what accuracy requirements would permit a change in separation standards. These standards, and the manual that goes with them are the responsibility of the ICAO European and North Atlantic Office in Paris. Yes, that’s Paris, France.
Given the arguments put forward by US President Trump, and his supporters, it does seem surprising that only Greenland is of interest. In aviation what happens across the North Atlantic, all the way up to the North Pole, depends on seven sovereign countries working together.
I’d say if there’s reason to be suspicious or concerned about one of them in terms of their capability, security measures, or vulnerability, what about the rest?
Whether goods or travellers go by air or by sea, across the Northern Atlantic, the success of their journey depends on communication, collaboration, and cooperation between sovereign countries. Without conflict of a major kind, it would be difficult for one country to take over that space.
I also did work on guidance material for Polar Navigation[4]. In the polar region, magnetic heading is unreliable or useless for aircraft navigation. Thus, it’s important to have other suitable accurate sources of navigation to be able to plan a flight over the top of the Earth. Aircraft communication is an issue too.
Russian airspace may be closed but this does not stop airlines flying over the pole. Finnair goes to Japan over the North pole[5]. Meticulous planning is needed to make theses flights safe.
Anyway, my point is that much of the commotion over Greenland’s fate tends to ignore the complexities of international trade and travel. At all stages international standards, communication, collaboration, and cooperation are essential regardless of who you are.
[1] https://www.geolsoc.org.uk/Plate-Tectonics/Chap3-Plate-Margins/Divergent/Mid-Atlantic-Ridge.html
[2] https://weather.metoffice.gov.uk/learn-about/weather/types-of-weather/wind/what-is-the-jet-stream
[3] https://skybrary.aero/articles/north-atlantic-operations-airspace
[4] https://www.faa.gov/sites/faa.gov/files/2022-11/Polar_Route_Operations.pdf
[5] https://www.finnair.com/gb-en/bluewings/world-of-finnair/flying-over-the-north-pole–well-planned-is-half-done–2557656
John Vincent 