steering level

steering level

[′stir·iŋ ‚lev·əl]
(meteorology)
A hypothetical level, in the atmosphere, where the velocity of the basic flow bears a direct relationship to the velocity of movement of an atmospheric disturbance embedded in the flow.
References in periodicals archive ?
The Steering Level sponsors include Duke Energy, Michelin, Hollingsworth Funds and the Jolley Foundation.
The special motoring check covers a wide range of items including lights, oil level, clutch fluid level, drivebelt, battery and cooling system condition, antifreeze and screen wash level, power steering level, exhaust condition and tyre pressures.