COMPLETE QUESTIONS AND 100%
CORRECT SOLUTIONS VERIFIED BY
EXPERT 2025 NEW UPDATE.
Q: What does "Zonal" refer to in wind direction?
A: East-West
Q: What are Easterly Winds?
A: Winds blowing from East to West
Q: What are Westerly Winds?
A: Winds blowing from West to East
Q: What does "Meridional" refer to in wind direction?
A: North-South
Q: What are Northernly Winds?
A: Winds blowing from North to South
Q: What are Southernly Winds?
A: Winds blowing from South to North
Q: What are the scales of motion?
A:
Global: 10,000s km (e.g., Hadley Cell, Walker Circulation)
Synoptic: 1,000s km (e.g., monsoon, fronts)
, Mesoscale: 100s km (e.g., sea breezes, mountain winds, large storms)
Convective: 10s km (e.g., cumulonimbus, turbulent eddies)
Q: What is the Polar Front?
A: The boundary that occurs when a strong temperature gradient exists, resulting in a strong
pressure gradient over a small distance. It results in the Polar Jet Stream.
Q: What is the Polar Jet Stream?
A: A fast (50-100 mph) wind stream near the tropopause (9-12 km) that affects mid-latitude
weather.
Q: What is the Subtropical Jet Stream?
A: A higher and weaker jet stream than the polar jet, often bringing moisture to Texas.
Q: What is the Walker Circulation?
A: A zonal, tropical circulation with a main cell over the Pacific.
Normal: Rising motion over warm West Pacific and sinking motion over cold East
Pacific.
Q: What is La Nina?
A: An enhanced Walker Circulation with a warmer West Pacific and cooler East Pacific, and
stronger trade winds.
Q: What is El Nino?
A: A phenomenon where water warms in the East and central Pacific, trade winds weaken (can
even be westerly), and rain shifts eastward.
Q: What is the Oceanic El Nino/La Nina?
A: An ocean signal in the Central and East Pacific that occurs irregularly every 2-7 years.