دورية أكاديمية
Transitions between blocked and zonal flows in a rotating annulus with topography
| العنوان: | Transitions between blocked and zonal flows in a rotating annulus with topography |
|---|---|
| المؤلفون: | Weeks ER; E. R. Weeks, J. S. Urbach, H. L. Swinney, Center for Nonlinear Dynamics and Department of Physics, University of Texas at Austin, Austin, TX 78712, USA. Y. Tian, K. Ide, M. Ghil, Department of Atmospheric Sciences and Institute of Geophysi., Tian Y, Urbach JS, Ide K, Swinney HL, Ghil M |
| المصدر: | Science (New York, N.Y.) [Science] 1997 Nov 28; Vol. 278 (5343), pp. 1598-601. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium: Internet ISSN: 1095-9203 (Electronic) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: Original Publication: New York, N.Y. : [s.n.] 1880- |
| مستخلص: | The mid-latitude atmosphere is dominated by westerly, nearly zonal flow. Occasionally, this flow is deflected poleward by blocking anticyclones that persist for 10 days or longer. Experiments in a rotating annulus used radial pumping to generate a zonal jet under the action of the Coriolis force. In the presence of two symmetric ridges at the bottom of the annulus, the resulting flows were nearly zonal at high forcing or blocked at low forcing. Intermittent switching between blocked and zonal patterns occurs because of the jet's interaction with the topography. These results shed further light on previous atmospheric observations and numerical simulations. |
| تواريخ الأحداث: | Date Created: 19971205 Latest Revision: 20191120 |
| رمز التحديث: | 20240627 |
| DOI: | 10.1126/science.278.5343.1598 |
| PMID: | 9374453 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-9203 |
|---|---|
| DOI: | 10.1126/science.278.5343.1598 |