A polar jet stream is manifested by its polar vortex as can be empirically observed with its cognitive paradox resolved, is a qualitative proof that a polar jet stream is a sub-structure of its atmospheric polar vortex.
UVS qualitatively predicts that a polar jet stream is formed by a vortrex manifested at the bottom section of its atmospheric polar vortex to flow in closed streamlines of a ring torus structure.
Jet streams roaming around the polar regions are formed cyclonically at the boundaries of warm and cold air around a polar region, and the boundaries of warm and cold air on surface of troposphere are caused by sunken stratosphere that has filled the void in the nested polar vortex column.
UVS qualitatively predicts that polar jet stream with significant differences in temperature at the boundaries of adjacent air masses is as a result of sunken atmosphere in the vortex column.
The cognitive paradox that renders jet stream as mysterious phenomenon, was thus meticulously resolved with its underlying structure and mechanism illustrated.
The conditions for its epistemic theories of truth: The underlying structure and mechanism of a jet stream as illustrated by its hypothetical construct based on the UVS model, elucidated its delusional observations that render its misconceptions, mysteries, and anomalies. Thus, its cognitive paradox was meticulously resolved, and all the related natural phenomena were then qualitatively analysed with the conceptual frameworks of UVS by inductive reasoning for explicating on their empirical evidence with abductive reasoning to establish their qualitative predictions.
The bottom section of unisonal vortex is where momentum culmination of vortical forces is at its peak, it is where the discharging of vortex energy is at its maximum. The air pressure, angular momentum and wind speed are at their highest with radius at its smallest at the bottom of a vortex column, therefore radial force of the vortex is at its maximum there. This culminated vortical force of a vortex is bounced on impacting an atmospheric surface, and therefore air is vortically pushed out and can form as a vortrex with closed streamlines.
See UVS topics on "Vortices of Jupiter" that illustrates how jet streams are driven by their polar vortices to form as cloud bands, "Tornado" that elaborates on how a tornado cluster can be impelled by a polar jet stream, "Ocean jet stream" that elaborates on how oceanic jet streams are caused by a nested oceanic free vortex, "Dust devil" that elaborates on the upward lifting mechanism of vortrex, and "The causality of subtropical deserts" that elaborate on how subtropical deserts were caused by the subtropical jet stream with the Hadley cells it impels.
An two level atmospheric vortical system sketch diagram for illustrating the interactions of airflow with vortical push momentum.
See an externally linked topic on "A Shift Toward Aridity" that reports on shifting of jet stream.
UVS qualitatively predicts that the shifting of jet stream latitude is caused by the intensity variations of its polar vortex.
From the UVS perspective, subtropical jet stream is a phenomenon of energy discharging as vortrex at just below the surface of troposphere caused by the polar vortex of the stratosphere.
Based on unisonal vortex mechanism, the main axis for this polar vortex of stratosphere is from Earth rotation, and secondary axis is from revolving Earth that drives the polar vortex.
If a Solar System alignment has focused precession effects at winter night when Moon is also aligned with Sun, the jet stream would have the most intensity with highest wind speed.
See a UVS topic on "A typical arrangement of Solar System objects that could trigger a terrestrial free vortex" for further elaboration.
Easterly jet stream
From the UVS perspective, intensifed by differential force, and coupled by Earth's rotation, the air stream of the high speed spinning satellite vortex at its southern side could easily reach jet stream classification, which has to have a ground speed of more than 111 km/h; this renders the easterly jet stream phenomenon. And if the satellite vortex has gathered enough strength, its vortex eye could be opened to form a low pressure system in the atmospheric layers with its nested vortex column.
See UVS topics on "The hexagonal-like cloud structure of Saturn" that illustrates a similar tri-core polar vortex on Saturn, and "Bermuda Triangle" that elaborate on how a manifested satellite clear air polar vortex can cause mysterious circumstances.
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