 |
| Titel |
Drivers of recent interannual variability of the Atlantic meridional overturning circulation at 26.5°N |
| VerfasserIn |
Christopher Roberts, Jennifer Waters, Drew Peterson, Matthew Palmer, Gerard McCarthy, Eleanor Frajka-Williams, Keith Haines, Daniel Lea, Matthew Martin, Dave Storkey, Hao Zuo, Stuart Cunningham |
| Konferenz |
EGU General Assembly 2014
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250092990
|
| Publikation (Nr.) |
 EGU/EGU2014-7357.pdf |
|
|
|
|
|
| Zusammenfassung |
| The Atlantic meridional overturning circulation (AMOC) is responsible for the northward
transport of 1015 W of heat into the North Atlantic and has been linked to climate variability
on a wide range of time scales. During 2009/2010, there was a transient 30% weakening of
the AMOC that contributed to widespread cooling of the North Atlantic subtropical gyre.
This cooling has been linked to re-emergent SST anomalies and the strong negative NAO
during winter 2010. Here, we use simulations from the Met Office Forecast Ocean
Assimilation Model (FOAM) system to investigate the relative importance of atmospheric
forcings and internal ocean dynamics in driving this AMOC event. Our model experiments
suggest that the atmosphere was dominant in driving the AMOC variability during 2009/10
and the associated ocean heat loss, by inducing changes in ocean heat transports. |
|
|
|
|
|
|