Environmental forcing by submarine canyons: Evidence between two closely situated cold-water coral mounds (Porcupine Bank Canyon and Western Porcupine Bank, NE Atlantic)

O'Reilly, Luke; Fentimen, Robin; Butschek, Felix; Titschack, Jürgen; Lim, Aaron; Moore, Niamh; O'Connor, O.J.; Appah, John; Harris, Kimberley; Vennemann, Torsten; Wheeler, Andrew J.

doi:10.1016/j.margeo.2022.106930

Cited by 9 publications

(2 citation statements)

References 191 publications

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“…It runs through the Rockall Trough, Hatton-Rockall basin, and Iceland basin (Holliday et al, 2015;Humphreys et al, 2016;Jones et al, 2018). The Porcupine Bank has surface salinities that are about 0.05 PSU less than surface values of that in deeper water either side (White, 1997;O'Reilly et al, 2022). Goban Spur is a submarine plateau 250km that extends away south-west of Ireland in the southwestern Celtic Sea, and into the deeper ocean (Dingle and Scrutton, 1979;de Graciansky and Poag, 1985;Huthnance et al, 2001;Moritz et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…There are several water masses that circulate around the Porcupine Bank and Goban Spur that influence both temperature and salinity along the shelf. The main water masses that influence both are North Eastern Atlantic Water, and Mediterranean Outflow Water (MOW) moving the high saline water mass northward and then returning as denser water southward (Huthnance et al, 2001;O'Reilly et al, 2022). Lower Deep Water is thought to circulate cyclonically around Goban Spur, Porcupine Bank and the entrance to Rockall Trough (Huthnance et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Decadal Prediction along the Western Irish Coast

O'Beirne

Brune

McCarthy

et al. 2023

Preprint

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This study investigates the predictability within the North Eastern Atlantic at depth with an initialised decadal prediction system. For both temperature and salinity at the West Coast of Ireland are compared for 2-to-5-years ahead in a 16-member initialised decadal prediction system and in two 16-member uninitialised historical simulations from the Max Planck Institute Earth system model for the time period 1966-2013. We find that there is predictability in the upper levels of the North Eastern Atlantic up to a depth of 1000m for temperature and salinity. For the same time period we analyse water mass properties and prediction skill along three transects (Extended Ellett line, Porcupine Bank, Goban Spur). Along these transects, we find (1) that there is multi-year memory in the water mass properties of the initialised predictions, (2) that prediction skill depends on variable, depth, and external forcing scheme, (3) that improvements in prediction skill in the initialised system over the uninitialised simulations are mostly in the upper ocean above 300m depth and in the deep ocean below 1500m depth, and (4) that these improvements are more pronounced in salinity than temperature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%