Scales of circulation Microscale Macroscale Mesoscale Identify the appropriate locations: prevailing westerlies polar easterlies northeasterly trade winds 1. “between the equator and 30°N” 2. “between 30°N and 60°N” 3. “north of 60°N.” The line separating the airmasses between the tropical and polar regions is known as a ____________.

Assignment Question

Answer these questions. Question 1 options: Scales of circulation Microscale Macroscale Mesoscale Identify the appropriate locations: Question 2 options: prevailing westerlies polar easterlies northeasterly trade winds 1. “between the equator and 30°N” 2. “between 30°N and 60°N” 3. “north of 60°N.” The line separating the airmasses between the tropical and polar regions is known as a ____________. Question 3 options: Horse Latitudes polar front tropical front Intertropical Convergence Zone The two jet streams commonly found near the tropopause in winter are the Polar Front Jet Stream and the Subtropical Jet Stream. Question 4 options: True False The general circulation refers to the wind system that extends over the entire globe. ” Question 5 options: True False What type of weather can one expect from moist, unstable air, and very warm surface temperatures? Question 6 options: Fog and low stratus clouds. Continuous heavy precipitation. Strong updrafts and cumulonimbus clouds When an airmass is stable, it is common to find smoke, dust, haze, etc., concentrated at the lower levels, with resulting poor visibility.” Question 7 options: True False In a cold front occlusion, the air ahead of the warm front is _______ than the air behind the overtaking cold front. Question 8 options: less cooler more warmer An extratropical cyclone is a macroscale low-pressure disturbance that develops outside the tropics.” Question 9 options: True False The term “tropical cyclone” covers a number of similar tropical disturbances which are classified according to their maximum sustained wind speeds, Match the following: Question 10 options: tropical depression hurricane tropical storm 1. 33 knots or less 2. 34 to 63 knots 3. 64 knots or more 64 knots or morehas the capability to determine velocity of a target toward or away from the radar by measuring the frequency difference between the transmitted and received radiation. Question 11 options: Attenuation A weather observer Sensitivity Time Control Doppler Radar Your airborne radar may not “see” storm cells beyond an intense cell directly ahead of your aircraft because of Attenuation by heavy precipitation Question 12 options: True False A K-Index of 40 or greater would be an indication ______________________. Question 13 options: there is a 0 percent probability of an airmass thunderstorm there is a 60 percent probability of an airmass thunderstorm there is a near 100 percent probablity of an airmass thunderstorm there is a 30 percent probability of an airmass thunderstorm In this first stage of development of the thunderstorm, air initially rises throughout the cloud. Upward growth is much greater in some portions of the cloud than in others, and the cloud grows in an unsteady succession of upward bulges as thermals arrive at the top. Question 14 options: True False Individual thermals have horizontal dimensions of a few hundred to a few thousand feet, lifetimes of a few minutes, and vertical speeds from a few hundred feet per minute to about 2,000 f.p.m. Thermals can develop day or night, as long as the ground is warmer than the overlying air. Question 15 options: True False Datalink weather radar (from satellite or ADS-B) is just as capable of allowing an aircraft to safely navigate through an area of thunderstorms as onboard weather radar? Question 16 options: True False Hail is most likely to be associated with cumulonimbus clouds. Question 17 options: True False Thermals are a common source of lift for sailplanes. Many cross-country glider flights longer than 1,000 km (540 n.m.) have been made by using the thermal updrafts associated with dry convection. Question 18 options: True False The drag and evaporation of precipitation initiates downdrafts within growing cumulus clouds Question 19 options: True False A(n) _______ is a vertical probe of atmospheric conditions. Question 20 options: sounding sonar balloon inversion teathered balloon Decode the highlighted codes in the following METAR: METAR KGFA 072054Z 24028G40KT 15SM SCT080 SCT100 OVC250 13/6 A2956 AO2 ACSL ALQDS CCSL ALQDS= (ALTOCUMULUS STANDING LENTICULAR CLOUDS CIRROCUMULUS STANDING LENTICULAR CLOUDS) Question 21 options: Cirrocumulus Standing Lenticular Clouds Altocumulus Standing Lenticular Clouds Cirrocumulus Standing Lenticular Clouds Cirrus Standing Lenticular Clouds Decode the highlighted codes in the following METAR: METAR KGFA 072054Z 24028G40KT 15SM SCT080 SCT100 OVC250 13/6 A2956 AO2 ACSL ALQDS CCSL ALQDS= Question 22 options: Altostratus Standing Lenticular Clouds CIRROCUMULUS STANDING LENTICULAR CLOUDS (ALTOCUMULUS STANDING LENTICULAR CLOUDS The maximum land-water temperature difference (relatively colder temperature over land), and the maximum pressure difference (higher pressure over land), and therefore, the land breeze, all reach a maximum about sunrise. Question 23 options: True False The strength of a lee wave is indicated by the strength of the vertical motions it produces. In the more common “weak” lee waves, upward and downward speeds are a few hundred feet per minute or less. In contrast, in “strong” lee waves, vertical speeds can be 1,800 f.p.m. or more. Question 24 options: True False Significant vertical motions will occur in lee waves if the winds perpendicular to the ridgeline exceed 20 knots at the top of the ridge and the lee wave wavelength exceeds 5 n.m. Question 25 options: True False