# Meteo 003: Lab 8

Meteo 003: Lab 8 Chapter 11: 11ab Chapter 12: 10abcd, 11ab Chapter 13: 1ab, 2ac, 7ab 11.11ab pg. 515 a) -Graph each point as accurately as you can -Remember to use the correct symbols and scale b) -Interpret high/low heights same as high/low pressure -Factors that can cause weakening:

-source of moisture cutoff -cooler water -wind shear -em 12.10abcd pg. 556 -Net divergence leads to pressure decreasing -Net convergence leads to rising pressure -Which one is occurring at the surface? -Is it balanced by the opposite process aloft or is there net convergence/divergence? -Stronger convergence/divergence aloft will lead to a

strengthening high/low a) 12.11ab -Identify high and low centers on figure 12.40 b) -Surface lows are generally on the east side of 500 mb lows/troughs -Greater curvature at 500 mb = Stronger surface low (lower pressure) -Jet stream will parallel 500mb height lines, so the diagram shows a much more curved trough and subsequent stronger

surface low pressure on the right (b) pg. 556 13.1ab pg. 579 Advection: transport of an atmospheric variable by the wind (i.e. temperature, moisture, etc) a) -Winds need to blow across isotherms to transport warm/ cold air -See example on board b) -Remember the flow around high/low pressure

centers 13.2ac pg. 580 *NO Part B a) -Only thing changing is the temp. gradient -If the wind is 1 mph, then the air 1 mile away will be at your location in 1 hour c) -Only thing changing is wind speed -Same process as part a -Dont forget explanations for each part Temperature Advection Example

Is this warm/cold advection? What will the temperature be at A in 2 hours? A 2 0 3 0 4 0 5 0

6 0 7 0 Note: Each isotherm is 10 nautical miles apart 8 0 13.7ab pg. 589

-Refer back to 12.11 earlier in lab a) -Cyclogenesis favored to the east of 500 mb trough b) -Surface lows form downstream (usually to the east) ` upper-air troughs -Surface highs form downstream (usually to the east) upper-air ridges of of Due - Friday Nov 3 rd

in class Office Hours: Thursday 2-3 (606B Walker) Email me if you have any questions or dont understand a concept! ([email protected]) Problems Chapter 11: 11ab Chapter 12: 10abcd, 11ab Chapter 13: 1ab, 2ac, 7ab

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