J 2012

The impact of organochlorines cycling in the cryosphere on their global distributions and fate – 1. Sea ice

GUGLIELMO, F., I. STEMMLER and Gerhard LAMMEL

Basic information

Original name

The impact of organochlorines cycling in the cryosphere on their global distributions and fate – 1. Sea ice

Authors

GUGLIELMO, F. (276 Germany), I. STEMMLER (276 Germany) and Gerhard LAMMEL (276 Germany, guarantor, belonging to the institution)

Edition

Environmental Pollution, OXFORD, ENGLAND, ELSEVIER SCI LTD, 2012, 0269-7491

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.730

RIV identification code

RIV/00216224:14310/12:00059635

Organization unit

Faculty of Science

UT WoS

000301087800060

Keywords in English

Persistent organic pollutants; Global cycling; Sea ice; Modelling

Tags

Změněno: 22/4/2013 14:24, Ing. Andrea Mikešková

Abstract

V originále

Global fate and transport of gamma-HCH and DDT was studied using a global multicompartment chemistry-transport model, MPI-MCTM, with and without a dynamic sea ice compartment. The MPI-MCTM is based on coupled ocean and atmosphere general circulation models.Sea ice hosts 7-9% of the burden of the surface ocean. Without cycling in sea ice the geographic distributions are shifted from land to sea. This shift of burdens exceeds the sea ice burden by a factor of approximate to 8 for gamma-HCH and by a factor of approximate to 15 for DDT. As regional scale seasonal sea ice melting may double surface ocean contamination, a neglect of cycling in sea ice (in an otherwise unchanged model climate) would underestimate ocean exposure in high latitudes. Furthermore, it would lead to overestimates of the residence times in ocean by 40% and 33% and of the total environmental residence times, tau(overall), of gamma-HCH and DDT by 1.6% and 0.6%, respectively.

Links

ED0001/01/01, research and development project
Name: CETOCOEN