NATS 101

Lecture 9

Finish Clouds

Vertical Stability

Precipitation (if we get to it)
Summary: Fog
Cloud Classification
Cloud Classification
Slide 5
Cloud Classification
Cloud Classification
Cirrus (Ci)
Cirrocumulus (Cc)
Cirrostratus (Cs)
Altocumulus (Ac)
Altostratus (As)
Nimbostatus (Ns)
Stratus (St)
Stratocumulus (Sc)
Cumulus (Cu) Humilis
Cumulus Congestus (Cu)
Cumulonimbus (Cb)
Supercell Cb
Mammatus
Pileus
Lenticular
Banner Cloud
Kelvin-Helmholtz
Jet Contrail
Summary: Cloud Classification
NowÉ Vertical Stability
Tennis Basics
Air Molecules Act Similarly
Rising Air Cools-Sinking Air Warms
Adiabatic Cooling-Warming
Rising, Saturated Air Cools Less
Moist Flow over a Mountain
Brain Burners
Concept of Stability
ArchimedesÕ Principle
Absolutely Stable: Top Rock
Absolutely Unstable: Middle Rock
Conditionally Unstable: Lower Rock
Environmental Lapse Rate (ELR)
Summary: Key Concepts I
Summary: Key Concepts II
NATS 101

Precipitation Processes
Supplemental References for Precipitation processes
Cloud Droplets to Raindrops
Terminal Fall Speeds              (upward suspension velocity)
Collision-Coalescence
Warm Cloud Precipitation
Mixed Water-Ice Clouds
SVP over Liquid and Ice
SVP near Droplets and Ice
Ice Crystal Process
Accretion-Aggregation Process
Summary: Key Concepts
Examples of Precipitation Types
Temp Profiles for Precipitation
Summary: Key Concepts
Assignment
Assignment for Next Lecture