ESS227
Prof. Jin-Yi Yu
Wave Motions
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Perturbations in the atmosphere can be represented in
terms of a
Fourier series of
sinusoidal components:
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•
•
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L: distance around a latitude circle,
•
s:
planetarywave number, an integer designating
the
number of waves around a latitude circle
è
zonal wave number (units m
−1
)