A number of other significant sounds have been named by NOAA: Julia, Train, Slow Down, Whistle and Upsweep.

Discovered in 1991, the noise became known as the Upsweep and was found to be audible from each end of the Pacific Ocean.

The National Oceanic and Atmospheric Administration (NOAA) has described Upsweep as "a long train of narrow-band upsweeping sounds of several seconds duration each".

The Upsweep you can hear in this extract is played at 20 times the normal speed.

Anything short would roll back down the upsweep, or catch a deep bunker on the right.

"I put my hair in an upsweep with these little tendrils to match the period."

"But instead of a broad upsweep, we might just see a stutter-step market."

Apparently the fairly ordinary upsweep she'd favored for Sunday morning was of no interest during the week.

The forward upsweep will help keep the vent dry.

The nurse was fat, with bleached blonde hair in an upsweep.

My shot had landed on a slight upsweep in the bunker and plugged.

The pulsing green line made a sharp upsweep, repeated.

He was more voluble on the subject of his distinctive Fonz-like upsweep.

I considered a mizzen, but didn't like how it interacted with the stern upsweep.

Esther had hers rolled up into a fashionable upsweep.

A removable panel - or better still a hinged one - in the stern upsweep would provide access.

Her hair was half in an upsweep and half straggling down her face.

Everything came to an end here in a fantastic upsweep of sharp-tipped peaks and crags.

Hers she kept, glowing blue eyes flanked by the dark upsweep of cormorant wings.

The move can be separated into four parts: the downsweep, the insweep, the upsweep, and the recovery.

They have an upsweep at the outer edges where the arms (typically referred to as temples) join the frame front.

New rhinestone combs held her upsweep hairdo in place.

She can wear a tiara with a beautiful upsweep, but this length also fits into her lifestyle for everyday running around.

Now Ms. Palin’s upsweep is being praised and derided across the Internet.

His eyes followed the great upsweep of City Mount Hill as it became one with the darkening sky.

She had combed her hair into a smooth upsweep, obviously relishing the opportunity to show the bandages rather than hide them.

Something in the way the upsweep of her hair accented the shape of her cheekbones, perhaps.

Her grand upsweep on Downton Abbey is a wig.

The branches are directly out and there's a slight upsweep so there's a loftiness to it."