Which mechanism causes high-altitude subtropical streams (jet streams) to steer mid-latitude cyclonic storm systems?

💡 Explanation

When warm air rises at the equator, the Coriolis effect combines with pressure gradients and large-scale Rossby waves in the upper atmosphere, deflecting these streams eastward and imparting a sinuous path. Therefore, the Coriolis effect and Rossby waves are the principal steering mechanisms, rather than pressure gradients, solar heating, or latent heat, which play indirect roles.

• Which mechanism dictates aftershock frequency following a large strike-slip earthquake along a transform fault?
• Which consequence results when rapid aggradation overwhelms river levees?
• Which mechanism increases landslide risk following intense rainfall near strike-slip fault zones?
• Which mechanism increases lahar hazard during and after stratovolcano eruption sequences?
• Which physical outcome occurs when the Coriolis effect deflects prevailing winds creating ocean gyres near continental coastlines?
• Which process drives the formation of horst and graben structures along a normal fault?