Explain this image of a dust storm forming from a synoptic scale cold front (a) (c) H L L (b) (d) H Figure 6.2. Different generic types of synoptic-scale dust storms (here depicted for the northern hemisphere): (a) Type I: Continental desert depression without a clear frontal structure; (b) Type II: Well developed cyclone with dust emission behind (and sometimes also ahead of) the cold front; (c) Type III: Weak cyclonic disturbance with long trailing cold front and strong post-frontal ridge formation causing highly isa llobaric flow; (d) Type IV: Intensified subtropical (or sometimes mid-latitude) high-pressure system. Black lines are isobars with 'L' and 'H' marking low- and high-pressure centres. Grey arrows show areas of strong surface winds with resulting dust plumes in grey shading. Fronts are marked with standard symbols.

Applications and Investigations in Earth Science (9th Edition)
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Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Explain this image of a dust storm forming from a synoptic scale cold front
(a)
(c)
H
L
L
(b)
(d)
H
Figure 6.2. Different generic types of synoptic-scale dust storms (here depicted for the
northern hemisphere): (a) Type I: Continental desert depression without a clear frontal
structure; (b) Type II: Well developed cyclone with dust emission behind (and sometimes also
ahead of the cold front; (c) Type III: Weak cyclonic disturbance with long trailing cold front
and strong post-frontal ridge formation causing highly isallobaric flow; (d) Type IV:
Intensified subtropical (or sometimes mid-latitude) high-pressure system. Black lines are
isobars with 'L' and 'H' marking low- and high-pressure centres. Grey arrows show areas of
strong surface winds with resulting dust plumes in grey shading. Fronts are marked with
standard symbols.
Transcribed Image Text:Explain this image of a dust storm forming from a synoptic scale cold front (a) (c) H L L (b) (d) H Figure 6.2. Different generic types of synoptic-scale dust storms (here depicted for the northern hemisphere): (a) Type I: Continental desert depression without a clear frontal structure; (b) Type II: Well developed cyclone with dust emission behind (and sometimes also ahead of the cold front; (c) Type III: Weak cyclonic disturbance with long trailing cold front and strong post-frontal ridge formation causing highly isallobaric flow; (d) Type IV: Intensified subtropical (or sometimes mid-latitude) high-pressure system. Black lines are isobars with 'L' and 'H' marking low- and high-pressure centres. Grey arrows show areas of strong surface winds with resulting dust plumes in grey shading. Fronts are marked with standard symbols.
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