Why scientists are in Newfoundland to figure out — and bottle — fog

A team of international scientists is in Newfoundland, attempting to bottle the ‘F’ in the province’s notorious rain, drizzle and fog, in order to better understand the weather element.

The project, called C-Fog and led by the University of Notre Dame in Indiana, is a collaboration of Canadian and U.S. universities, other institutions and the military.

Newfoundland is one of the top three locations in the world for fog, both in how much is generated and how long it hangs around, according to Ed Creegan, chief scientist aboard the U.S. research vessel Hugh R. Sharp.

This helium balloon can help weather instruments reach heights of up to 1,500 metres while tethered to the ship. (Todd O’Brien/CBC)

“From a forecasting standpoint, it’s very difficult to predict when and the duration of how it’s going to form, but it has a huge impact — not only economic impact, on the disruption of transportation from aviation to trucking kind of concerns — but also life, health and safety issues, in that it can come on very suddenly and disrupt automobile traffic and cause accidents and loss of life,” Creegan told CBC’s On the Go.

“If you were to evaluate it against the more newsworthy things like tornadoes or lightning storms, fog is actually more disruptive overall than either of those two events.”

Figuring out fog

The ship is outfitted with about a dozen instruments used specifically to measure the water content, size and particle count of fog — which Creegan calls “one of the more poorly understood phenomenon in weather.”

The goal? Figure out fog.

Bottled fog is not something that’s found in most freezers. (Todd O’Brien/CBC )

“To learn what fog is doing and how it’s forming, how it’s dissipating and try to find the triggers as to give you a better ability to put it into a model so that the model predictions will become more accurate and more timely and then you translate an enhancement in the model directly into the forecasting,” Creegan said.

At sea, the crew has set a zigzag pattern for the ship as it travels 12 nautical miles from shore parallel to the Avalon Peninsula in search of fog. The scientists aboard are on call 24/7.

It may sound like a bad joke from the 1970s, but the project even demands bottling fog so it can be analyzed later in a lab.

Professor Joe Fernando, principal Investigator with the C-Fog project, says the U.S. navy has a big interest in figuring out fog. (Todd O’Brien/CBC)

The project requires land resources, too. Instruments have been set up at sites in Ferryland, Blackhead, Flatrock and at Osbourne Head, N.S., to capture how fog comes ashore.

Why does the U.S. navy care?

The U.S. navy is sponsoring the C-Fog project, and it’s a natural fit, according to Joe Fernando, the principal investigator with C-Fog.

“They have a lot of interest in predicting fog because the aircraft carriers usually go through fog, and the aircraft takeoff and landing is all dependent on the fog conditions,” said Fernando, who is also an engineering professor at the University of Notre Dame.

“They basically suspend operations during fog. So that’s very important to predict short term, what will happen [in the] next 24 hours or not. It’s a very important important fact and also on top of that there are other applications — for example, airports. As you know from here in St. John’s, airport closures also depend on fog.”

The vessel Hugh R. Sharp, seen here docked in St. John’s, is equipped with many instruments to help measure environmental conditions. (Todd O’Brien/CBC)

The vessel originally departed from Lewes, Delaware, and will make its way to Halifax for Sept. 25, with the field study wrapping up Oct. 6.

Read more from CBC Newfoundland and Labrador

Why scientists are in Newfoundland to figure out — and bottle — fog

Source: https://www.cbc.ca/news/canada/newfoundland-labrador/scientists-studying-fog-newfoundland-1.4821811?cmp=rss
Aggregated from: CBC | Newfoundland and Labrador News

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