When you have the largest Atlantic storm in recorded history that is being feed by
unusually warm ocean waters (+5 °F) and is being steered in a very unusual direction by a «3 - sigma» blocking higher over Greenland after the largest Arctic sea ice melt in human history, you might want to consider the «steroid» hypothesis a bit more.
The potential spoiler is the cyclical El Nino event: a band of
unusually warm ocean water that periodically forms along the equatorial Pacific Ocean and drives up global temperatures.
Not exact matches
Ocean currents bringing
unusually warm water, for instance, could shift away more from Greenland, or move in closer, he said.
Charlie's research told him that during El Niño weather cycles, the surface seawaters in the Great Barrier Reef lagoon, already heated to
unusually high levels by greenhouse gas — induced
warming, were being pulsed from a mass of
ocean water known as the Western Pacific
Warm Pool onto the reef's delicate living corals.
El Niño conditions can also curb the formation of powerful storms, and with no El Niño in the picture in 2017 — and with
warmer - than - average
ocean waters — last year's Atlantic hurricane season was
unusually active.
El Niño — a
warming of tropical Pacific
Ocean waters that changes weather patterns across the globe — causes forests to dry out as rainfall patterns shift, and the occasional
unusually strong «super» El Niños, like the current one, have a bigger effect on CO2 levels in the atmosphere.
The dipole consists of a
warmer than average band of
water between northern Australia and Java that forms in conjunction with an
unusually cold band of
water running northwest into the Indian
Ocean from Australia's west coast.
... studying an
unusually warm pool of
water in the Pacific
Ocean northeast of Australia, as well as the atmosphere above it....
The entire North Atlantic is
unusually warm right now (+0.6 degrees Celsius) relative to the already - globally -
warmed late twentieth century (1971 - 2000) average, and there are large patches of
ocean water off the US East Coast that are 2 - 4 degrees Celsius above that average.
Meanwhile, in the Pacific
Ocean, there's a long, skinny blob of
unusually warm water off the West Coast, stretching from Mexico to Alaska.
«We show, for the first time, that the volume of rain over land corresponds to the amount of
water evaporated from the
unusually warm ocean,» said lead author Kevin Trenberth, a senior scientist at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado.
The
unusually high sea ice surface temperatures reflect a shift in
ocean circulation, enhancing the import of warm, Atlantic - derived waters into the Arctic O
ocean circulation, enhancing the import of
warm, Atlantic - derived
waters into the Arctic
OceanOcean.
The effects of tropical cyclones early in the year were followed by regular northwest cloud - band activity between May and mid-July, when
waters northwest of the continent were
unusually warm as part of a negative phase of the Indian
Ocean Dipole.
The current bleaching event has affected reefs throughout the tropics — including much of the Pacific and parts of the Indian
Ocean, the Atlantic and the Caribbean basin — and is largely thanks to the onset of a particularly severe El Niño event in 2015, which has resulted in
unusually warm water temperatures in many regions.
The «blob» is a giant patch of
unusually warm water off the West Coast in the northeast Pacific
Ocean.
The Pacific
Ocean was the primary repository of that heat as
unusually strong trade winds piled up
warm water in the west, pinning it against Asia and Australia but those
waters became so
warm some of the heat leaked into the Indian
Ocean.