Sentences with phrase «atlantic subpolar gyre»
FIGURE 2.1 Schematic of the major warm (red to yellow) and cold (blue to purple) water pathways in the North Atlantic subpolar gyre.
https://www.nap.edu/
These range from few years (Beaufort gyre 4 years, Circumpolar current 8 years, Indian ocean gyre 10 years, N. Atlantic subpolar gyre 20 years etc.) up to above 100 years for some of the Pacific gyres, and finally the great ocean conveyor belt estimated at ~ 1600 years.
Not only has the AMOC slowed down (Cunningham et al [2013]-RRB-, but sea surface temperatures in North Atlantic subpolar gyre have begun falling, as have sea surface temperatures in the North Pacific subtropical gyre - best illustrated by the Pacific Decadal Oscillation (PDO) being strongly positive this year.
North Atlantic subpolar gyre along predetermined ship tracks since 1993: a monthly dataset of surface temperature, salinity, and density
Hatun H., Sandø A.B, Drange H., Hansen B. & Valdimarsson H. (2005) «Inlfuence of the Atlantic Subpolar Gyre on the Thermocline Circulation», Science, vol 309, 1841 - 1844
Hatun H., SandØ A.B., Drange H., Hansen B. & Valdimarsson H. (2005) «Influence of the Atlantic Subpolar Gyre on the Thermocline circulation», Science, vol 309, 1841 - 1844
Not exact matches
The sea surface temperature (SST) anomalies that define the AMV are characterized by a basin - scale pattern that has the same sign over the whole North Atlantic, with a maximum loading over the subpolar gyre region.
The strength of the Icelandic Low is the critical factor in determining path of the polar jet stream over the North Atlantic In the winter the IL is located at SW of Greenland (driver Subpolar Gyre), but in the summer the IL is to be found much further north (most likely driver the North Icelandic Jet, formed by complex physical interactions between warm and cold currents), which as graphs show had no major ups or downs.
The strength of the Icelandic Low is the critical factor in determining path of the polar jet stream over the North Atlantic In the winter the IL is located at SW of Greenland (Subpolar Gyre) In summer the IL is to be found much further north (most likely the North Icelandic Jet, formed by complex physical interactions between warm and cold currents) These two run under two different regimes and two clocks (see the CET synthesis from 3 harmonics, one for each summer and winter, and one common — see the above link, bottom graph).
Characterize and investigate coherence within the subpolar and subtropical gyres, communication between the gyres, and communication of changes across the equator to the South Atlantic.
not entirely clear, but since it is the north leg of the NAO (Icelandic pressure) that is determinant, it presumably takes some years for the warm atlantic currents to reach the Arctic and return as cold currents via Denmark Strait (Icelandic pressure) and few more years to loop into the subpolar gyre to initiate AMO oscillation Hence in order of occurrence NAP > NAO > AMO (refer to http://www.vukcevic.talktalk.net/NAOn.htm one but last illustration) Just as a reminder compare NAP waveform with the CET spectrum components (1660 - 2021) http://www.vukcevic.talktalk.net/CET-NV.htm I hope some of the above helps, but if not than your «how you cook up your «secret recipe» NAP misgiving is by far safer than accepting «blanco» assurance.
The flow of freshwater from the northern continents represents an export to the world ocean that goes almost entirely into the Atlantic, about 5.1 Sv passing as relatively low salinity water through the passages between Greenland and Ellesmere Island into the Labrador Sea, a flow of low salinity water that can subsequently be traced around the subpolar gyre.
If sustained, these winds strengthen the subpolar gyre that circles counterclockwise in the far North Atlantic.