Weakening and warming of the European Slope Current since the late 1990s attributed to basin-scale density changes

Abstract Sv is identified with eastward transport in temperature classes at 30∘  W in the latitude range 45–60∘  N. Associated with major subpolar warming around 1997, a cool and fresh branch of the Atlantic inflow was substantially reduced, while a warm and more saline inflow branch strengthened, with respective changes of the order of 5 Sv. Total inflow fell from ∼ Sv pre-1997 to ∼ Sv post-1997. In the model hindcast, particle tracking is used to trace the origins of poleward flows along the continental slope to the west of Ireland and Scotland before and after 1997. Backtracking particles up to 4 years, a range of subtropical and subpolar pathways is identified from a statistical perspective. In broad terms, cold, fresh waters of subpolar provenance were replaced by warm, saline waters of subtropical provenance. These changes have major implications for the downstream shelf regions that are strongly influenced by Atlantic inflow, in particular the northern North Sea, where “subtropicalization” of ecosystems has already been observed since the late 1990s.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Weakening and warming of the European Slope Current since the late 1990s attributed to basin-scale density changes ; volume:18 ; number:2 ; year:2022 ; pages:549-564 ; extent:16 ; Ocean science ; 18, Heft 2 (2022), 549-564 (gesamt 16)

Beteiligte, Orts- und Zeitangaben

• Urheber: Clark, Matthew ; Marsh, Robert ; Harle, James

Weitere Informationen

• DOI: 10.5194/os-18-549-2022
• URN: urn:nbn:de:101:1-2022050505192677491331
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:35 MESZ