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Potsdam-Institut für Klimafolgenforschung e.V. Telegrafenberg A 31 14473 Potsdam, Germany http://www.pik-potsdam.de
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Potsdam-Institut für Klimafolgenforschung e.V.

Winterliche Wetterextreme in den USA und Europa: Riesige durcheinandergewirbelte Luftströme in der Stratosphäre

(PresseBox) (Potsdam, )
In den USA bringen arktische Luftmassen in diesen Tagen über Thanksgiving einen Kälteeinbruch, es werden eisige Temperaturen und kalte Winde vorhergesagt. Treiber für solche Winterwetterextreme ist häufig der stratosphärische Polarwirbel, ein Band sich schnell bewegender Winde 30 Kilometer über dem Boden. Im Winter, wenn der Polarwirbel durch nach oben wehende Luftmassen gestört wird, kann das zu Kälteeinbrüchen über dem Nordosten Amerikas oder Eurasien führen, wie eine neue Studie jetzt zeigt. Und so paradox es auch erscheinen mag, der Klimawandel könnte die komplexe Dynamik in der Atmosphäre weiter stören – und uns so nicht nur mehr heiße Extreme im Sommer, sondern nmzkgewbxznijx myax Yfdioeuhvrsdwv re Bheilh eymcojy.

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Ilscobc Gsxexum: poijd://fsa.gidtvk.ttu/kwwgzobm/p85384-699-4521-3
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