As an epilogue to this story :
Quote:
|
A visualisation of the northern European airspace returning to use after being closed due to volcanic ash. Due to varying ash density across Europe, the first flights can be seen in some areas on the 18th and by the 20th everywhere is open.
|
http://vimeo.com/11205494
If you watch the North East coast of Scotland early on I believe those must be helicopter flights to oil rigs, there's also one or two flights in the UK during the shutdown, probably military or air ambulance flights.
Keep your eye on London!