Document of bibliographic reference 317762

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Response of marine methane dissolved concentrations and emissions in the Southern North Sea to the European 2018 heatwave

Abstract

During the European heatwave of 2018 that led to record-breaking temperatures in many countries across northern and central Europe, average seawater temperature in July was 2.5°C higher than the mean from 2004 to 2017 for same month in the Belgian coastal zone (BCZ) (Southern Bight of the North Sea). The mean dissolved CH₄ concentration in surface waters in July 2018 (338 nmol L^-1) was three times higher than in July 2016 (110 nmol L^-1), and an extremely high dissolved CH₄ concentration in surface waters (1,607 nmol L^-1) was observed at one near-shore station. The high dissolved CH₄ concentrations in surface waters in the BCZ in July 2018 seemed to be due to a combination of enhancement of methanogenesis and of release of CH₄ from gassy sediments, both most likely related to warmer conditions. The emission of CH₄ from the BCZ to the atmosphere was higher in 2018 compared to 2016 by 57% in July (599 versus 382 μmol m^-2 d^-1) and by 37% at annual scale (221 versus 161 μmol m^-2 d^-1). The European heatwave of 2018 seems to have led to a major increase of CH₄ concentrations in surface waters and CH₄ emissions to the atmosphere in the BCZ.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000504520600005

Bibliographic citation

Borges, A.V.; Royer, C.; Martin, J.L.; Champenois, W.; Gypens, N. (2019). Response of marine methane dissolved concentrations and emissions in the Southern North Sea to the European 2018 heatwave. Cont. Shelf Res. 190: 104004. https://dx.doi.org/10.1016/j.csr.2019.104004

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true