gfd i - department of atmospheric sciencesdargan/509/509_lecture3.pdf · 200 300 (28.5) 2 km 4 km...
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![Page 1: GFD I - Department of Atmospheric Sciencesdargan/509/509_lecture3.pdf · 200 300 (28.5) 2 km 4 km 34 (17.5) 2 km 4 km 30 40 24 28 50 2 km 4 km Fig. 3.2. The ranges of temperature](https://reader035.vdocuments.us/reader035/viewer/2022070716/5eda08a2bb309434ee03239e/html5/thumbnails/1.jpg)
GFD I
Frierson Lecture 3: 1-9-17
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Last time…
• Thermodynamic equation – Atmospheric equation can be written in
terms of theta, T or rho – Approximate oceanic equation:
• C DT/Dt = Q
• Adiabatic lapse rate: 9.8 K/km for atmos – Around 0.15 K/km for ocean – Ocean pressures increase 1 bar/10 m
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Now you can tell your grandparents…
• Why hot air rises, but air is cold on top of a mountain!
![Page 4: GFD I - Department of Atmospheric Sciencesdargan/509/509_lecture3.pdf · 200 300 (28.5) 2 km 4 km 34 (17.5) 2 km 4 km 30 40 24 28 50 2 km 4 km Fig. 3.2. The ranges of temperature](https://reader035.vdocuments.us/reader035/viewer/2022070716/5eda08a2bb309434ee03239e/html5/thumbnails/4.jpg)
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Density/potential density of seawater
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Today
• Buoyancy/static stability • Moisture
– Latent heating and equivalent potential temperature
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Atmospheric Latent Heat Content
Surface moisture content, in Kelvin (Lq/cp)