ER-2 mountain wave encounter over Antarctica - Evidence for blocking

Orographically forced large-amplitude gravity waves (mountain waves) encountered during the AAOE experiment by ER-2 on September 22, 1987 over Alexander Island (73-70 deg W, 69-72 deg S) were analyzed using a three-dimensional steady-state model of stratified flow over realistic topography, similar...

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Bibliographic Details
Main Authors: Bacmeister, Julio T., Schoeberl, Mark R., Lait, Leslie R., Newman, Paul A., Gary, Bruce
Format: Other/Unknown Material
Language:unknown
Published: 1990
Subjects:
46
Alexander Island
Antarc*
Antarctica
Online Access:http://ntrs.nasa.gov/search.jsp?R=19900034460
Description
Summary:Orographically forced large-amplitude gravity waves (mountain waves) encountered during the AAOE experiment by ER-2 on September 22, 1987 over Alexander Island (73-70 deg W, 69-72 deg S) were analyzed using a three-dimensional steady-state model of stratified flow over realistic topography, similar to the model used by Smith (1980). Taking into account the effects of low-level flow blocking, reasonable agreement was obtained between the model and observations, indicating that blocking may be an important feature of real flow over topography.

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