Air-sea exchange of semivolatile organic compounds – wind and/or sea surface temperature control of volatilisation studied using a coupled general circulation model

STEMMLER, I. and Gerhard LAMMEL. Air-sea exchange of semivolatile organic compounds – wind and/or sea surface temperature control of volatilisation studied using a coupled general circulation model. Journal of Marine Systems. AMSTERDAM, NETHERLANDS: Elsevier, 2011, vol. 85, 1-2, p. 11-18. ISSN 0924-7963. Available from: https://dx.doi.org/10.1016/j.jmarsys.2010.11.002.

Basic information

• Original name: Air-sea exchange of semivolatile organic compounds – wind and/or sea surface temperature control of volatilisation studied using a coupled general circulation model
• Authors: STEMMLER, I. (276 Germany) and Gerhard LAMMEL (276 Germany, guarantor, belonging to the institution).
• Edition: Journal of Marine Systems, AMSTERDAM, NETHERLANDS, Elsevier, 2011, 0924-7963.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10511 Environmental sciences
• Country of publisher: Netherlands
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 2.126
• RIV identification code: RIV/00216224:14310/11:00053872
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1016/j.jmarsys.2010.11.002
• UT WoS: 000287426300002
• Keywords in English: Air-sea exchange; Volatilisation; Semivolatile organic compounds; Climate parameters
• Tags: AKR, rivok, ZR

Abstract

The global multicompartment chemistry-transport model MPI-MCTM is used to determine the sensitivity of volatilisation of dichlorodiphenyltrichlorethan (DDT) and dichlorodiphenyldichloroethylene (DDE) to SST and wind speed changes. Parameters controlling the volatilisation of DDT from the ocean surface, none of them independent, and their degree of control are identified and mapped by a correlation analysis on the seasonal time scale and by an empirical orthogonal functions (EOF) analysis on the inter-annual timescale. Seasonal variations of volatilisation are shown to be controlled by either wind speed or SST in different sea regions. On this time scale wind is more dominant than SST in the global ocean. The main pattern of inter-annual variability (up to decades), however, is shown to be explained by SST. The results suggest that large-scale spatial averaging, including zonally averaging leads to underestimates of the volatilisation rate and the long-range transport potential of SOCs.

Links

• ED0001/01/01, research and development project: Name: CETOCOEN
• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)