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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F12%3A00059635" target="_blank" >RIV/00216224:14310/12:00059635 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.envpol.2011.09.039" target="_blank" >http://dx.doi.org/10.1016/j.envpol.2011.09.039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2011.09.039" target="_blank" >10.1016/j.envpol.2011.09.039</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 factorof 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 factorof 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

<a href="/cs/project/ED0001%2F01%2F01" target="_blank" >ED0001/01/01: CETOCOEN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Pollution

ISSN

0269-7491

e-ISSN

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Svazek periodika

162

Číslo periodika v rámci svazku

MARCH

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

475-481

Kód UT WoS článku

000301087800060

EID výsledku v databázi Scopus

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