Section5Slides_v2

Section5Slides_v2 - Figure 7.2.1 (p. 202) Precipitation...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Figure 7.2.1 (p. 202) Precipitation formation. Water droplets in clouds are formed by nucleation of vapor on aerosols, then go through many condensation-evaporation cycles as they circulate in the cloud, until they aggregate into large enough drops to fall through the cloud base (from Marsh (1987)).
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Horizontal Convergence • Large-scale air mass convergence (typically occurs in Tropics [Inter Tropical Convergence Zone (ITCZ)]-- see atmos. circ. schematic • Also occur in tropical cyclones (low pressure systems): • High pressure systems have the opposite circulation (anti- cyclones) and downwelling motion • Subtropical cyclones also form at higher latitudes L Plan: Cross-section:
Background image of page 2
Frontal Convergence • Convergence of air masses with different temperatures (temperature fronts); generally occur in midlatitudes • “Front” is region of strong thermal contrast • Cold front: colder air approaching warmer; labeled with pointed arrow indicating ±ow direction • Warm front: warmer air approaching colder; labeled with rounded arrow indicating ±ow direction • Fronts collide and de±ect warmer air rises
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Figure 7.2.2 (p. 203) Cyclonic storms in mid-latitude (from Masch (1984)).
Background image of page 4
How to Read a Surface Map Surface maps depict the large-scale elements of the weather. These elements include high and low pressure systems, cold and warm fronts, and precipitation areas.A high pressure system is an area of relative pressure maximum that has diverging winds and a rotation opposite to the earth's
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/08/2010 for the course CEE 150 taught by Professor Margoolis during the Fall '10 term at UCLA.

Page1 / 30

Section5Slides_v2 - Figure 7.2.1 (p. 202) Precipitation...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online