TAMU ATMO 201 EXAM 2 WITH
QUESTIONS AND 100% CORRECT
ANSWERS APPROVED BY EXPERT 2025
UPDATE.
What is Dew?
Answer: Liquid condensation on a surface; common during cold, calm nights; long-wave cooling
of air to dew point.
What is Frost?
Answer: Similar to dew but from deposition rather than condensation; vapor to ice.
What is Frozen Dew?
Answer: Black ice, dew that is then frozen.
What is Haze?
Answer: Forms at a relative humidity <100%; when aerosols are gyroscopic; reduction of
visibility; water-seeking particles that enhance condensation.
What is Fog?
Answer: Cloud at ground level; smog = smoke + fog.
Formed by cooling, evaporation, and mixing.
What is Advection Fog?
Answer: Warm, moist air moves over a cold surface; winds slightly stronger, so deeper fog layer;
can see it roll in.
What is Upslope Fog?
Answer: Cooling of air as it moves upslope.
, What is Evaporation Fog?
Answer: Cold air over warm water; water evaporates into cooler air above it; the ending of fog
occurs with enhanced wind or sun penetrating fog and warming the ground.
What is Radiation Fog?
Answer: Ground fog. Forms on clear nights; long-wave radiation cooling at night (like dew) but
light wind mixes a shallow layer above the surface; fog more common in winter because of
longer nights; common with strong surface inversions.
What is a Stratus Cloud?
Answer: "Layer" (flat).
What is a Cumulus Cloud?
Answer: "Heap/pile" detached (think cauliflower).
What is a Nimbus Cloud?
Answer: Raining.
What is Alto Cloud?
Answer: Middle.
What is Cirrus Cloud?
Answer: Ice.
What are High Clouds?
Answer: Bases >7km; ice only (cirrus); thin and wispy.
Cirrus: thin and wispy.
Cirrostratus: even thinner than cirrus and altostratus, see halo.
Cirrocumulus: smaller and thinner details and structure, smaller than altocumulus.
QUESTIONS AND 100% CORRECT
ANSWERS APPROVED BY EXPERT 2025
UPDATE.
What is Dew?
Answer: Liquid condensation on a surface; common during cold, calm nights; long-wave cooling
of air to dew point.
What is Frost?
Answer: Similar to dew but from deposition rather than condensation; vapor to ice.
What is Frozen Dew?
Answer: Black ice, dew that is then frozen.
What is Haze?
Answer: Forms at a relative humidity <100%; when aerosols are gyroscopic; reduction of
visibility; water-seeking particles that enhance condensation.
What is Fog?
Answer: Cloud at ground level; smog = smoke + fog.
Formed by cooling, evaporation, and mixing.
What is Advection Fog?
Answer: Warm, moist air moves over a cold surface; winds slightly stronger, so deeper fog layer;
can see it roll in.
What is Upslope Fog?
Answer: Cooling of air as it moves upslope.
, What is Evaporation Fog?
Answer: Cold air over warm water; water evaporates into cooler air above it; the ending of fog
occurs with enhanced wind or sun penetrating fog and warming the ground.
What is Radiation Fog?
Answer: Ground fog. Forms on clear nights; long-wave radiation cooling at night (like dew) but
light wind mixes a shallow layer above the surface; fog more common in winter because of
longer nights; common with strong surface inversions.
What is a Stratus Cloud?
Answer: "Layer" (flat).
What is a Cumulus Cloud?
Answer: "Heap/pile" detached (think cauliflower).
What is a Nimbus Cloud?
Answer: Raining.
What is Alto Cloud?
Answer: Middle.
What is Cirrus Cloud?
Answer: Ice.
What are High Clouds?
Answer: Bases >7km; ice only (cirrus); thin and wispy.
Cirrus: thin and wispy.
Cirrostratus: even thinner than cirrus and altostratus, see halo.
Cirrocumulus: smaller and thinner details and structure, smaller than altocumulus.
