Meteorology for Air Pollution Control Engineers30

Meteorology for Air Pollution Control Engineers30 -...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 n This cool sea breeze makes the lower-level air mass in seashore  cities, such as Los Angeles, cooler, and hence more stable, that it  would be if the ocean were agricultural land.  n The sea breeze is one of the contributors to the meteorological  situation that makes air pollution control particularly difficult in  Los Angeles. n In Los Angeles the sea breeze situation interacts with the  mountains on the other side of the city to trap the air.
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 n In eestimating the wind direction at any time and any  location, one can use the following rules of thumb: (1) Major, rapidly moving storms and  fronts  overwhelm all local influences;  local ground-level  winds blow the way  that the major storms dictate.
Background image of page 2
3 (2) In deep valleys the daily alternation-wind up  the valley in  the daytime, down at 
Background image of page 3

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

View Full DocumentRight Arrow Icon
Background image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: night-overcomes most other influences and determines most of the local flow when no major storm or frontal passage dominates. (3) The valley effect is greater in deep valleys than in shallow, in steep valleys than in gentle ones, at night than in the daytime, and under conditions of light wind and clear sky than of strong wind or cloudiness. 4 (4) Onshore and offshore breezes dominate when there is no major storm. They are more likely to control the wind direction in the daytime than at night. (5) Absent all of the preceding or any other effects of local topography, the wind direction is more likely to be that shown in Fig. 5.2 than any other. (6) Fig. 5.2 is a better predictor near the equator than near the Poles....
View Full Document

Page1 / 4

Meteorology for Air Pollution Control Engineers30 -...

This preview shows document pages 1 - 4. Sign up to view the full document.

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