The two-core longitudinal structure of meridional wind in the middle atmosphere
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F16%3A00465351" target="_blank" >RIV/68378289:_____/16:00465351 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The two-core longitudinal structure of meridional wind in the middle atmosphere
Popis výsledku v původním jazyce
One of key stratospheric processes is the Brewer-Dobson circulation, which includes meridionalntransport. Kozubek et al. (2015) disclosed the existence of the two-core longitudinal structure innmeridional wind at 10 hPa in January. Here the two-core structure in meridional wind is analysed basednon MERRA data over 1979-2012 in order to find the altitudinal and seasonal dependence of this two-corenstructure and its other properties. The two-core structure covers the middle stratosphere (lower boundaryn50 hPa), upper stratosphere and lower mesosphere (up to at least 0.1 hPa). It is circulation response tonthe appearance of blocking Aleutian pressure high, which affects more or less also zonal wind,ntemperature and ozone fields. The well-pronounced two core structure occurs only in the winter half ofnthe year (October-March) and only at the Northern Hemisphere. It displays a westward shift withnincreasing altitude. The two-core longitudinal structure in meridional wind is persistent feature; only a fewnwinters (Januaries) display more complex structure. Its existence should influence the Brewer-Dobsonncirculation and also the zonal mean approach to investigations of the middle atmosphere.
Název v anglickém jazyce
The two-core longitudinal structure of meridional wind in the middle atmosphere
Popis výsledku anglicky
One of key stratospheric processes is the Brewer-Dobson circulation, which includes meridionalntransport. Kozubek et al. (2015) disclosed the existence of the two-core longitudinal structure innmeridional wind at 10 hPa in January. Here the two-core structure in meridional wind is analysed basednon MERRA data over 1979-2012 in order to find the altitudinal and seasonal dependence of this two-corenstructure and its other properties. The two-core structure covers the middle stratosphere (lower boundaryn50 hPa), upper stratosphere and lower mesosphere (up to at least 0.1 hPa). It is circulation response tonthe appearance of blocking Aleutian pressure high, which affects more or less also zonal wind,ntemperature and ozone fields. The well-pronounced two core structure occurs only in the winter half ofnthe year (October-March) and only at the Northern Hemisphere. It displays a westward shift withnincreasing altitude. The two-core longitudinal structure in meridional wind is persistent feature; only a fewnwinters (Januaries) display more complex structure. Its existence should influence the Brewer-Dobsonncirculation and also the zonal mean approach to investigations of the middle atmosphere.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
DG - Vědy o atmosféře, meteorologie
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA15-24688S" target="_blank" >GA15-24688S: Proměnlivost ionosféry a neutrální atmosféry ve středních šířkách</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů