Polar Jet Stream

the Coriolis force generated by the rotation of the earth deflects

the air process with the right in the northern hemisphere,

whenever these two forces equal each other,

the system is in so called catastrophic balance.

As shown in the figure,

the jet stream runs from west to east

in both hemispheres parallel to the temperature gradient.

This jet in theory and circle the earth in a straight line.

However, in reality it is a more wave shaped pattern, known as rusty waves

as differential heating of land and sea masses causes both

north to south as a west east temperature contrast.

So now that you know what the polar jet stream is,

you may be wondering how it will be affected by anthropogenic climate change.

And to understand this, we need to have a look at the arctic amplification.

Different elements come together to cause the

warming of temperatures in the arctic,

the local radiative forcing from increased greenhouse gas emissions

and the ice albedo feedback play an important role,

but also the change in cloud cover and water vapor content.

Finally,

the relatively smaller increase in the long

wave radiation to space compared to the tropics

for the same temperature increase, play an important role as well.

Whether they already perceived changes are a consequence of anthropogenic

climate change are still part of the jet stream.

Natural viability have not yet found consensus within the scientific community.

Two way at all, for instance,

have found that the recent increase in the

number of polar jet stream anomalies is unprecedented,

linking industrial era anthropogenic warming to the enhanced

my ability in the position of the jet.

However,

Osmond at all argue that the viability in a position

of the jet is still within its natural viability,

and then an anthropogenic polar jet signal will emerge as early

as 2016 and a high emission scenario of the S.

S. P five, or RCP 8.5.

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