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Scientists go to Newfoundland to figure out, and bottle, fog


CBC News

Wednesday, September 19, 2018, 11:53 AM - An international team of scientists is in Newfoundland to gather fog samples from 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, the military in each country and other institutions.

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.

"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."

SEE ALSO: Near head-on collision captured on Newfoundland dashcam

FIGURING OUT FOG

The ship is outfitted with about a dozen instruments 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, "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.

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

FALL 2018: Here's what NEWFOUNDLAND and LABRADOR can expect over the next three months

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.

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

This report was originally published on CBC.ca

HOW TO MAKE A CLOUD IN A BOTTLE, WATCH WHAT HAPPENS AT THE END




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