Chapter 20 - Upper Air Meteorology Flashcards
42.34.2
Define: (a) contour line;
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42.34.2
Define: (b) thermal wind;
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42.34.2
Define: (c) isotherm;.
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42.34.4
State the information that can be obtained from spacing and orientation of contour
lines.
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42.34.6
Demonstrate proficiency in interpreting information contained on a contour chart.
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42.34.8
Explain the factors involved in determining a thermal wind.
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42.34.10
Explain why the wind at progressively higher altitudes in mid latitudes tends to become
westerly.
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42.34.12
Describe the vertical variation of pressure within low level: (a) depressions with a cold core;
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42.34.12
Describe the vertical variation of pressure within low level: (b) depressions with a warm core;
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42.34.12
Describe the vertical variation of pressure within low level: (c) anticyclones with a cold core;
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42.34.12
Describe the vertical variation of pressure within low level: (d) anticyclones with a warm core.
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42.34.14
State the characteristic slope (“lean”) of axis of cold depressions and warm
anticyclones with altitude in the southern hemisphere.
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42.34.16
Define “jet stream”.
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42.34.18
Describe the structure of a jet stream including explanations of wind shear and
turbulence.
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42.34.20
List the four principal jet streams located globally in the troposphere.
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42.34.22
Regarding the Southern Hemisphere polar jet stream, describe its: (a) association with fronts and thermal gradients;
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42.34.22
Regarding the Southern Hemisphere polar jet stream, describe its: (b) location relative to the frontal interface;
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42.34.22
Regarding the Southern Hemisphere polar jet stream, describe its: (c) usual, or typical, altitude;
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42.34.22
Regarding the Southern Hemisphere polar jet stream, describe its: (d) intensity and latitudinal location in winter compared to summer;
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42.34.22
Regarding the Southern Hemisphere polar jet stream, describe its: (e) preferred regions of turbulence.
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42.34.24
Regarding the Southern Hemisphere subtropical jet stream, describe/state: (a) the origin of its associated thermal gradient;
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42.34.24
Regarding the Southern Hemisphere subtropical jet stream, describe/state: (b) its location relative to the fractured tropopause;
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42.34.24
Regarding the Southern Hemisphere subtropical jet stream, describe/state: (c) its usual altitude;
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42.34.24
Regarding the Southern Hemisphere subtropical jet stream, describe/state: (d) the region where the strongest turbulence is generally found.
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42.34.26
State the season during which jet streams are more active as the result of differing
global thermal gradients.
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42.34.28
With respect to (clear air) turbulence associated with jet streams, describe or state the: (a) relationship between wind shear value and severity of turbulence;
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42.34.28
With respect to (clear air) turbulence associated with jet streams, describe or state the: (b) regions where clear air turbulence is likely to be found;
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42.34.28
With respect to (clear air) turbulence associated with jet streams, describe or state the: (c) effect on the severity of turbulence where mountain waves and jet stream
combine.
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42.34.30
With respect to cloud formations associated with jet streams, describe or state the type
of cloud commonly found on the: (a) warm side of the jet stream;
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42.34.30
With respect to cloud formations associated with jet streams, describe or state the type
of cloud commonly found on the: (b) cold side of the jet stream.
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42.34.32
Describe how a pilot can anticipate the location and altitude of jet streams, and what
telltale signs are often present in flight to locate a jet stream.
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42.34.34
With respect to polar and subtropical jet streams in both hemispheres, list their
locations and characteristics in terms of: (a) average wind velocity (direction and speed);
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42.34.34
With respect to polar and subtropical jet streams in both hemispheres, list their
locations and characteristics in terms of: (b) average pressure altitude;
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42.34.34
With respect to polar and subtropical jet streams in both hemispheres, list their
locations and characteristics in terms of: (c) typical maximum wind speed;
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42.34.34
With respect to polar and subtropical jet streams in both hemispheres, list their
locations and characteristics in terms of: (d) average latitudinal location.
Tropical Meteorology
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