A massive 6-month volcano disruption of commercial air travel

In 2010, the Eyjafjallajökull eruption interrupted air travel to and from Europe for 6 days, and it was a major disruption to the world economy.

This had me thinking - what if there was a much bigger, much-longer lasting and more severe volcano-eruption disruption, for 6 months rather than 6 days?

Air travel couldn’t afford to be disrupted for that long. Would airlines cope by installing some sort of volcanic-ash filter screens on their engines, and then resume flights?

if a really big volcano lets loose, air travel might be the least of our worries.

https://en.wikipedia.org/wiki/Year_Without_a_Summer

and no, filters would be impractical. the air flow through a turbofan is too great; to trap ash a filter would have to be very fine which would greatly reduce engine performance.

I imagine it depends on just where the volcano is. The main reason the Icelandic volcano was such a big deal is that it’s right there next to a whole lot of the transatlantic air routes, and is placed in a particularly bad spot for paralyzing European air travel.

If say… it was to continuously spew ash for 6 months, I imagine that there would be a corresponding increase in train and road travel within Europe, and I also figure that cruise lines might start sailing the transatlantic routes again- there would be a lot of money to be made sailing a big cruise ship from say… Southampton to New York, if people couldn’t fly between Europe and the US, and I suspect that would outweigh whatever money is made schlepping tourists between Caribbean islands, or down the Mexican coast.

There also might be round-about flights that fly out of southern Europe/N. Africa to the US.

I saw a special on TV just a few weeks ago about a commercial air liner that flew through an ash cloud. They didn’t know it was a volcano, but they knew something was wrong. They were seeing sparks along the side of the plane. The cabin was filling with some kind of “smoke” (that didn’t quite act like smoke) and what seemed to be the strangest is that they lost their engines, but they later started back up on their own.
Also, when they landed, more or less, blind since they’re windows were ruined from the ash.

It wasn’t until they landed and got outside to look at it, did they realize how bad it was. It was a while later (days? weeks?) before they pieced together what actually happened since the volcano wasn’t on the weather reports.
https://en.wikipedia.org/wiki/British_Airways_Flight_9

If you can catch the documentary on TV, it was really good.

Probably if the event lasts weeks, then we will start seeing safety standards modified and relaxed, something which actually happened during the Icelandic event.

As above, but even worse if it was a major eruption in Japan. Not only would it isolate the country, but it would cause untold loss of life and property because of proximity to population centers. Plus the fact that a major eruption anywhere in East Asia will trash the busiest air routes on the planet. 9 of the top 10 routes in the world are in East Asia or Australia. The economic impact to the world would be off the charts massive.

Cruise ships arent engineered to make trans Atlantic voyages.

I would think that the Miami - Lisbon route would get a lot more traffic. From Lisbon, Rome or Madrid you can catch rail connections to the rest of Europe.

How much ash would it take to put a serious dent into global warming?

Cite?

Assuming the disruption is restricted to air travel, I think there would be little to modest macro-level disruption after the initial shock. Apart from the airline sector, of course. Business can be conducted by phone or internet; personal meetings might require a significant train journey or cruise - I can see Iceland benefiting here. Tourism would be seriously affected but that would only shift where tourist money was spent, so while there would be local disruptions, on a macro scale there would be no overall effect.

Many of them are.

Some of the biggies make regular transatlantic cruises anyway; they sail the Caribbean in the winter and the Mediterranean in the summer (see, e.g., Royal Caribbean’s Jewel of the Seas, Freedom of the Seas, etc.), and the semi-annual repositioning cruise is a popular choice. The Disney Magic is currently en route from Florida to Dover, England; she’ll spend the summer in Europe before returning from Spain to New York in September.

As you can from the UK. And most people would rather disembark in southern England than Portugal.

During the 2010 eruption, both Heathrow and Gatwick were closed part of the time and had restrictions (e.g., on number of flights) at other times.

The volcanic ash didn’t just go straight up in the air; the wind blew the ash cloud around, including over Britain and parts of the continent.

The 1991 Pinatubo Eruptions and Their Effects on Aircraft Operations

I just picked Southampton-NYC since it’s the route the Cunard liners have taken in recent years.

SS Uganda took educational cruises around the Meditterranean until it was required for a hospital ship for the Falklands War. The refit took only three days.

Filters for the engines won’t work. That idea was hashed out during the Eyjafjallajökul eruption.

Whether air travel could or couldn’t afford the disruption is irrelevant - the disruption would happen.