ENVIRSC 1A03 Lecture Notes - Lecture 8: Lapse Rate, Cumulus Congestus Cloud, Cumulus Cloud

• School: McMaster University
• Department: Environmental Science
• Course: ENVIRSC 1A03
• Professor: Luc Bernier

Document Summary

% and rising air in cloud remains saturated: absolutely unstable elr > dalr, level in atmosphere where rising air becomes warmer than surrounding air = level of free. Celsius per 1000 m - this process causes increase in airs relative humidity. At elevation of 1000m, air has cooled to dew point and relative humidity is 100 %, condensation has occurred and cloud forms: condensation level. Deep stable layer begins a short distance above cloud base: cumulus congestus. Deep conditionally unstable layer exists above cloud base: cumulonimbus. Conditionally unstable air is extremely deep ( greater than 4 km: orographic uplift, occurs when mass of air is deflected over or around a hill or mountain, upward movement of air results in adiabatic cooling. Types of cloud: height above earth"s surface, and extent of vertical development two factors that indicate the type of cloud, cloud forms, stratiform clouds. Blanket like that cover most of the sky: cumuliform clouds.