Observed and projected global warming pressure on coastal hypoxia

Abstract ∘ C, - 1.6, and - 1.2  mmol m- 3 per decade for sea-surface temperature (SST), oxygen saturation concentration at the surface (surface oxygen capacity), and vertical-minimum oxygen concentration, respectively. These trends point to more rapid deterioration in coastal conditions than experienced over recent decades; the projected median coastal trends for SST and oxygen capacity are 148 % and 118 % of the corresponding observed rates. Companion analysis of other models and climate scenarios indicates projected coastal oxygen trends for the more moderate RCP4.5 and updated SSP5–8.5 (Shared Socioeconomic Pathway) scenarios, respectively, are 37 %–77 % and 103 %–196 % of the CESM RCP8.5 projections. Median rates for the coast and documented hypoxic areas are higher than in the global ocean. Warming and oxygen declines tend to be fastest at high latitudes, one region where new hypoxic areas may emerge as oxygen conditions deteriorate. There is considerable pressure on current hypoxic areas, since future oxygen declines of any magnitude will make hypoxia more severe. The projections can inform coastal environmental management strategies to protect future water quality and ecosystem services.

Angaben zum Objekt

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

Verweise und Beziehungen

• Erschienen in: Observed and projected global warming pressure on coastal hypoxia ; volume:19 ; number:18 ; year:2022 ; pages:4479-4497 ; extent:19 ; Biogeosciences ; 19, Heft 18 (2022), 4479-4497 (gesamt 19)

Beteiligte, Orts- und Zeitangaben

• Urheber: Whitney, Michael M.

Weitere Informationen

• DOI: 10.5194/bg-19-4479-2022
• URN: urn:nbn:de:101:1-2022092205243156536784
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:28 MESZ