The warm countercurrents in the Pacific become unusually strong and replace normally
cold offshore waters with warm equatorial waters.
19 El Nino Southern Oscillation: ENSO Occurs: three to seven years The warm countercurrents in the Pacific become unusually strong and replace normally
cold offshore waters with warm equatorial waters.
Not exact matches
Winds at the time of the report were good wind
offshore producing very
cold water.
17 El Nino verses La Nina El Niño La Niña Trade winds weaken Warm ocean
water replaces
offshore cold water near South America Irregular intervals of three to seven years Wetter than average winters in NC La Niña Normal conditions between El Nino events When surface temperatures in the eastern Pacific are
colder than average The southern US is usually warmer and dryer in climate
As warmer surface
waters are carried away by this
offshore ocean airflow,
cold water from below the thermocline rises to the surface in a process called upwelling.
[*) Another contributing factor to a dominantly positive phase for the NAO index is current and expected SST anomaly, with relatively
cold waters west of the Azores, favouring high pressure build - up there, and relatively warm
waters off the US - Canadian east coast, favouring northerly Atlantic depression formation (especially during
offshore winds).]
Extremely
cold (katabatic) winds blowing off the Antarctic Ice Sheet, push
water and sea ice
offshore, contributing to high rates of sea ice formation.
As for mechanisms, for one thing, Antarctica is producing a lot less very -
cold «bottom
water» in the
offshore basins.
These alongshore stresses act in concert with the Coriolis force to drive
offshore oceanic (Ekman) transport that in turn pumps deep,
cold water up to the coastal margins.