Derived Parameters: Jets (Isotachs) and PVA at 300 hPa

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Wind and Structure

To balance the hydrostatic equation, warm core systems have winds that decrease with height and cold core systems winds that increase with height.

If winds decrease with height in the lower troposhere but not in the higher troposhere the hurricane is shallow warm core; this is typical of hurricanes that develop in the high tropics where they form over lower sea temperatures and over a reduced timescale.

The vorticity fields show that the Hurricane does not have vorticity advection associated with it, this is not surprising as the hurricane is formed due to surface heating and not from upper level forcing. However there is a large area of advection associated with the jet. This jet is seen to accelerate as it moves across the Atlantic.

Use the overlay buttons to view the animation of the water vapour and model fields.