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Labs 9 & 10 - Lab 9 Soundings and Stability Part 1...

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Lab 9: Soundings and Stability Part 1: Adiabatic Processes and the Skew-T Diagram 1. Examine the relationship between the moist and dry adiabats on Figure 3. Explain why the moist adiabats become parallel to the dry adiabats in the upper atmosphere. It is the in the areas of Skew-T where the moist and dry adiabats are parallel happens because that area is at very cold temperatures and low pressure. The air parcel up there has stopped moving vertically. So, both lapse rates are the same in the upper atmosphere because evaporation is minimal. 2. 3. ABR (16 April 2002) FWD (27 Jan 2000) Lifting Condensation Level (LCL) 950 950 Convective Condensation Level (CCL) 700 550 Equilibrium Level (EL) 180 300 Part 2: Stability and Stability Indicies 4. ABR (16 April 2002 FWD (27 Jan 2000) Lifted Index -3 25 K-Index 23.3 22.5 Total Totals Index 60.4 41.8 SWEAT Index 532.2 308 5. My answer: I think Figure 7 indicates the radiosonde went through a cloud but with the somewhat constant temperature even with the fall in dew point, I think there is very little indication that there were severe thunderstorms in the area. Gregory’s answer: I believe that thunderstorms are likely due to the atmospheric instability of the graph. You can see that the dew point curve are jagged on the
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graph causing an instability in the weather and temperature. This is what I think is
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