Trendy ozónu v severních vysokých a středních šířkách - evropská perspektiva

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F08%3A00314061" target="_blank" >RIV/68378289:_____/08:00314061 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Ozone trends at northern mid- and high latitudes ? a European perspective

Popis výsledku v původním jazyce

The EU CANDIDOZ project investigated the chemical and dynamical influences on decadal ozone trends focusing on the northern hemisphere (NH). The overall synthesis of the individual analyses in CANDIDOZ shows clearly one common feature in the NH mid latitudes and in the Arctic: an almost monotonic negative trend from the late 1970s to the mid 1990s followed by an increase. The Equivalent Effective Stratospheric Chlorine (EESC) which peaked in 1997 as a consequence of the Montreal Protocol was observed todescribe ozone loss better than a simple linear trend. Furthermore, analyses point to changes in dynamical drivers, such as the residual circulation playing a key role in the observed turnaround. Synoptic scale processes as represented by the new equivalent latitude proxy, by conventional tropopause altitude or by 250 hPa geopotential height have also been successfully linked to the recent ozone increases in the lowermost stratosphere.

Název v anglickém jazyce

Ozone trends at northern mid- and high latitudes ? a European perspective

Popis výsledku anglicky

The EU CANDIDOZ project investigated the chemical and dynamical influences on decadal ozone trends focusing on the northern hemisphere (NH). The overall synthesis of the individual analyses in CANDIDOZ shows clearly one common feature in the NH mid latitudes and in the Arctic: an almost monotonic negative trend from the late 1970s to the mid 1990s followed by an increase. The Equivalent Effective Stratospheric Chlorine (EESC) which peaked in 1997 as a consequence of the Montreal Protocol was observed todescribe ozone loss better than a simple linear trend. Furthermore, analyses point to changes in dynamical drivers, such as the residual circulation playing a key role in the observed turnaround. Synoptic scale processes as represented by the new equivalent latitude proxy, by conventional tropopause altitude or by 250 hPa geopotential height have also been successfully linked to the recent ozone increases in the lowermost stratosphere.

Druh

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

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Annales Geophysicae

ISSN

0992-7689

e-ISSN

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Svazek periodika

26

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

000256224500020

EID výsledku v databázi Scopus

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