TY - JOUR
T1 - The stationary response to large-scale orography in a general circulation model and a linear model
AU - Cook, K. H.
AU - Held, I. M.
PY - 1992
Y1 - 1992
N2 - The linear model's response to a Gaussian mountain at 45°N latitude is dominated by a single wave train radiating toward the southeast. For mountain heights between 0.7 and 2 km, the GCM's stationary waves are similar to the linear model response to orography, although amplitudes increase less rapidly than linearly with mountain height. For larger mountains, closed isentropes and distinctly nonlinear flow occur along the surface of the mountain and a large poleward-radiating wave train develops. The development of closed isentropes, and the breakdown of linear theory, can be predicted whenever the slope of the surface exceeds the slope of the isentropes in the unperturbed (no mountain) basic state. -from Authors
AB - The linear model's response to a Gaussian mountain at 45°N latitude is dominated by a single wave train radiating toward the southeast. For mountain heights between 0.7 and 2 km, the GCM's stationary waves are similar to the linear model response to orography, although amplitudes increase less rapidly than linearly with mountain height. For larger mountains, closed isentropes and distinctly nonlinear flow occur along the surface of the mountain and a large poleward-radiating wave train develops. The development of closed isentropes, and the breakdown of linear theory, can be predicted whenever the slope of the surface exceeds the slope of the isentropes in the unperturbed (no mountain) basic state. -from Authors
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U2 - 10.1175/1520-0469(1992)049<0525:TSRTLS>2.0.CO;2
DO - 10.1175/1520-0469(1992)049<0525:TSRTLS>2.0.CO;2
M3 - Article
AN - SCOPUS:0026462564
SN - 0022-4928
VL - 49
SP - 525
EP - 539
JO - Journal of the Atmospheric Sciences
JF - Journal of the Atmospheric Sciences
IS - 6
ER -