Not exact matches
They found that adding five years of
strong trade winds created powerful ocean currents that buried the warm surface water, bringing
cooler water to the surface.
The Australian and American researchers drew a similar comparison in their paper between
strong trade winds and a slight
cooling in global surface temperatures from 1940 to the 1970s.
The group also found evidence that
trade winds were
stronger and surface temperatures were
cooler from 1940 to 1970, providing additional evidence of the relationship between the Pacific
trade winds and the rates at which global temperatures have been changing.
«The mounting evidence is coalescing around the idea that decades of
stronger trade winds coincide with decades of stalls or even slight
cooling of global surface temperatures, as heat is apparently transferred from the atmosphere into the upper ocean,» Linsley said.
The reason the dry season is so much
cooler than the wet season is that the northeast
trade winds are
strongest at this time of year, blowing
cooling breezes along the coast which help keep the temperature down.
Regarding El Nino, here's the recent update from Australia: http://www.bom.gov.au/climate/enso/ «The past three or four weeks has seen a gradual strengthening of La Nina indicators: the near - equatorial Pacific has
cooled both on and below the surface, the
Trade Winds have been mostly
stronger than normal and cloudiness has been lower than average over much of the tropical Pacific.
The «
strong trade winds,» says study co-author Gerald Meehl of the U.S. National Center for Atmospheric Research, «are bringing
cooler water to the surface in the equatorial Pacific and mixing more heat into the deeper ocean.»
X Anomaly says: February 3, 2012 at 3:43 pm I think a good way to conceptualize the pools of warm and
cool water is that when there are
stronger trade winds, all the warm water is bunched up over in the west.
I think a good way to conceptualize the pools of warm and
cool water is that when there are
stronger trade winds, all the warm water is bunched up over in the west.
The best way to envision the relation between ENSO and precipitation over East Africa is to regard the Indian Ocean as a mirror of the Pacific Ocean sea surface temperature anomalies [much like the Western Hemisphere Warm Pool creates such a SST mirror with the Atlantic Ocean too]: during a La Niña episode, waters in the eastern Pacific are relatively
cool as
strong trade winds blow the tropically Sun - warmed waters far towards the west.