Chapter 12- Fronts and Depressions Flashcards Preview

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Flashcards in Chapter 12- Fronts and Depressions Deck (31):
1

42.26.2
Explain what is meant by synoptic meteorology.

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2

42.26.4
Define “air mass” and state the three properties that determine the uniformity of an air
mass.

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3

42.26.6
Explain what is meant by “source region” and; (a) state the location of the predominant global source regions;

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4

42.26.6
Explain what is meant by “source region” and; (b) describe how (source region) anticyclones facilitate air masses to absorb the characteristics of the source region.

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5

42.26.8
List the types of air masses and describe the main characteristics, and typical
meteorological conditions, of each.

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6

42.26.10
Explain what is meant by air mass modification.

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7

42.26.12
Describe the likely weather conditions experienced in Equatorial and Continental
regions during: (a) cold advection;

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8

42.26.12
Describe the likely weather conditions experienced in Equatorial and Continental
regions during: (b) warm advection.

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9

42.26.14
Explain the concept of convergence and divergence.

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10

42.26.16
Explain what is meant by “vorticity advection” and describe its influence on the
formation and development of pressure systems and fronts.

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11

42.26.18
With respect to depressions found in mid latitudes of the southern hemisphere, describe
the development and associated cloud of: (a) the typical mid latitude depression;

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12

42.26.18
With respect to depressions found in mid latitudes of the southern hemisphere, describe
the development and associated cloud of: (b) the polar depression;

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13

42.26.18
With respect to depressions found in mid latitudes of the southern hemisphere, describe
the development and associated cloud of: (c) sub tropical depression.

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14

42.26.20
Describe the effect of the following on the intensity of fronts, and on the extent of
cloud and precipitation: (a) amount of moisture in the warm rising air;

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15

42.26.20
Describe the effect of the following on the intensity of fronts, and on the extent of
cloud and precipitation: (b) stability or instability of the rising air;

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16

42.26.20
Describe the effect of the following on the intensity of fronts, and on the extent of
cloud and precipitation: (c) the slope of the front;

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17

42.26.20
Describe the effect of the following on the intensity of fronts, and on the extent of
cloud and precipitation: (d) the speed of the front;

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18

42.26.20
Describe the effect of the following on the intensity of fronts, and on the extent of
cloud and precipitation: (e) the temperature contrast across the front.

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19

42.26.22
Interpret the symbols commonly used to denote frontal weather on international charts.

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20

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (a) pressure trend;

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21

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (b) temperature trend;

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22

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (c) cloud;

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23

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (d) precipitation;

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24

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (e) visibility;

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25

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (f) dew point trend;

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26

42.26.24
Describe the sequence of events with the passage of the ‘idealised’ cold front and warm
front in both hemispheres in terms of: (g) relative humidity trend.

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27

42.26.26
Explain factors involved in the formation and development of: (a) warm occlusions;

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28

42.26.26
Explain factors involved in the formation and development of: (b) cold occlusions.

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29

42.26.28
State the typical weather conditions during the passage of a warm sector depression.

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30

42.26.30
Explain the associated weather, and factors involved, in the formation and development of (a) an orographic depression;

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31

42.26.30
Explain the associated weather, and factors involved, in the formation and development of (b) a thermal (heat type) depression.

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