Monster Hurricanes reached U.S. Northeast during prehistoric periods of ocean warming

[Heisy]

http://news.agu.org/press-release/monster-hurricanes-reached-u-s-northeast-during-prehistoric-periods-of-ocean-warming/

 

Donnelly and his colleagues examined sediment deposits from Salt Pond near Falmouth on Cape Cod. The pond is separated from the ocean by a 1.3- to 1.8-meter (4.3- to 5.9-foot) high sand barrier. Over hundreds of years, strong hurricanes have deposited sediment over the barrier and into the pond where it has remained undisturbed.

The researchers extracted nine-meter (30-foot) deep sediment cores that they then analyzed in a laboratory. Similar to reading a tree ring to tell the age of a tree and the climate conditions that existed in a given year, scientists can read the sediment cores to tell when intense hurricanes occurred.

The study’s authors found evidence of 32 prehistoric hurricanes, along with the remains of three documented storms that occurred in 1991, 1675 and 1635.

[SlantStickers Anonymous]

[CoastalWx]

Paging Ginxy......

[FLX_Transplant]

Is it possible that any of these were winter storms? Says hurricanes but not sure if something about the sediment record or the extremeness of the surge meant it had to be

[Drz1111]

Is it possible that any of these were winter storms? Says hurricanes but not sure if something about the sediment record or the extremeness of the surge meant it had to be

You sample in a spot that gets surge from the south, and that's how you know it's from a hurricane. It's harder to distinguish in New Jersey where all the sampling spots are just behind the barrier islands facing east and get surge from both canes and nor'easters.

[Ginx snewx]

Is it possible that any of these were winter storms? Says hurricanes but not sure if something about the sediment record or the extremeness of the surge meant it had to be

only a tsunami would give similar results