GEOG 1900 EXAM 2 NEWEST ACTUAL QUESTIONS

GEOG 1900 EXAM #2 NEWEST ACTUAL / QUESTIONS

AND ANSWERS VERIFIED/GRADED A+

Identify the characteristics associated with Mid-Latitude anticyclones - -----Answers-----Weather systems with High pressure in center -Fair weather conditions -Descending air warms adiabatically, diverges at surface (out- spiraling) -Little to no condensation -Little pressure gradient in center of high -Winds light & variable

Identify the three types of traveling cyclones - -----Answers- ----Mid-latitude cyclone (or extra-tropical cyclone)

-Tropical cyclone (ex: tropical storm or hurricane)

-Tornado

Identify the elements that allow Mid-Latitude Cyclones to grow over time. Focus attention on the factor that contributes the

most to this growth - -----Answers----Primary Factor:

Baroclinic Zone

-Temperature Contrast: Sharp difference between warm and

cold air masses.

-Pressure Gradient: Results from the temperature difference,

initiating cyclogenesis

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Other Factors:

-Upper-Level Support: Jet stream divergence enhances

surface low-pressure development.

-Coriolis Effect: Causes the developing cyclone to spin due to

Earth's rotation.

-Moisture and Latent Heat: Essential for providing energy

through condensation and release of latent heat.

Identify the factors that can increase relative vorticity in cyclonic formation - -----Answers-----1) As developing cyclone moves toward equator -2) High-level atmospheric divergence above developing cyclone; stretches or elongates air column -3) On lee side of mountains as developing cyclone passes over

Identify the three types of vorticity and be able to determine - in terms of vorticity - what happens as a cyclonic system moves either towards or away from the Equator - ----- Answers----•Relative - speed & direction of spinning system (cyclone or anti-cyclone)

•Planetary - related to rotation of Earth -Greatest near poles; lowest near Equator

•Absolute Vorticity - relative vorticity + planetary vorticity; will always be maintained as cyclone moves 2 / 3

Identify the two regions of the world where cyclonic tracks have been studied extensively and are well known - ----- Answers----North America and Western Eurasia

Identify the characteristics associated with an Easterly Wave - -----Answers----•Simplest form of tropical weather system •Trough of low pressure that moves slowly on trade winds •Occur over oceans between 5-30°N and S •Occur fairly regularly and involve moderate changes in wind/rainfall

Identify the basic components in the structure of a tropical

cyclone - -----Answers----Eye: The central region of a

tropical cyclone characterized by calm and clear conditions.

Eyewall: A ring of intense thunderstorms surrounding the eye,

containing the strongest winds and heaviest rainfall.

Rainbands: Spiral bands of intense convection and

thunderstorms that extend outward from the center, bringing additional rain and wind.

Identify the term given to tropical storms/cyclones that form in the Atlantic (Western Hemisphere), the Western Pacific, and Indian Oceans, respectively - -----Answers----"Hurricane" in the Atlantic, "Typhoon" in the western Pacific, and "Cyclone" in the Indian Ocean

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