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Planetary-scale waves are observed that remain
fixed with respect to the earth’s surface: |
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Possible causes are geographic distribution of: |
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Mountains (Charney and Eliassen 1949) |
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Land/sea differences and inequitable
distribution of sensible and latent heating (Smagorinsky 1953) |
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After 30 years of debate, answer settled that
both are important, but mountains perhaps a little more so |