GCM simulation of the tropical mixing barriers in the lower stratosphere /
a modified zonal flow shows a tropical mixing configuration
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | a modified zonal flow shows a tropical mixing configuration annual cycle of the tropical easterly zonal flow and barriers is a result of the absence of such waves. Calculations of meridional diffusion coefficients with effects on tropical mixing. The Rossby-gravity waves are expected to break. The presence of the tropical mixing Experiments with wave phase-speed filters indicate that filtered and anti-filtered winds suggest that mixing in the hemisphere than into the summer hemisphere. The tropical important influences on tropical mixing. An experiment with large-scale westward-moving waves, where the waves would be less important for tropical mixing, and the Kelvin waves make no contribution to tropical mixing. Analysis indicates middle latitudes by two mixing barriers, one weak and one mixing barriers have seasonal variations in location and mixing barriers in the tropical lower stratosphere. Results mixing zone allows more tropical air to mix into the winter mixing zone is present in the SKYHI simulations. The weak- mixing zone is relatively isolated from the surf zones in the of the westerly QBO phase. Finally, the SKYHI simulation results are compared with the observations and other show that during the solstitial seasons a tropical weak- simulations. stationary and quasi-stationary waves have significant strength. The variations are closely coincident with the strong. Lagrangian trajectory calculations show that the subtropical wave spectra. Wave spectrum analysis indicates that during the solstitial seasons there exists a zone in the that equatorward propagation of the extratropical waves has The high-resolution SKYHI general circulation model is used there is relatively absence of westward-moving waves. to simulate tropical mixing behavior and to investigate tropical easterlies occurs near the critical layers for the tropical mixing barriers are quasi-penetrable, and the weak tropics, which exactly matches the weak mixing zone, where |
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| Item Description: | "Major subject: Meteorology". Vita. |
| Physical Description: | xii, 102 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 94-101. |