Earth Science - Lift and Instability

Explore the fundamental concepts of atmospheric dynamics in this 29-minute lecture on lift and instability. Delve into adiabatic temperature changes, various lifting mechanisms including orographic, frontal, convergence, and localized convective lifting. Examine atmospheric stability types such as absolute stability, absolute instability, and conditional instability. Understand the dry adiabatic rate of change for unsaturated air and its relationship to elevation. Investigate how elevated terrain affects air flow and the conditions that determine environmental lapse rates. Gain insights into how these factors influence daily weather patterns and forecasting.

ADIABATIC TEMPERATURE CHANGES
OROGRAPHIC LIFTING
FRONTAL LIFTING
CONVERGENCE
LOCALIZED CONVECTIVE LIFTING
ATMOSPHERIC STABILITY
ABSOLUTE STABILITY
ABSOLUTE INSTABILITY
CONDITIONAL INSTABILITY
STABILITY AND DAILY WEATHER
The dry adiabatic rate of change for unsaturated air is per 1000 m.
When elevated terrain, such as a mountain range, acts as a barrier to the flow of air
When the environmental lapse rate is less than the wet adiabatic rate prevails.