Academic Journal

Baroclinic effects on the distribution of tropical cyclone eye subsidence

التفاصيل البيبلوغرافية
العنوان: Baroclinic effects on the distribution of tropical cyclone eye subsidence
المؤلفون: Wayne H. Schubert, Richard K. Taft, Christopher J. Slocum
المصدر: Frontiers in Earth Science, Vol 10 (2022)
بيانات النشر: Frontiers Media S.A., 2022.
سنة النشر: 2022
المجموعة: LCC:Science
مصطلحات موضوعية: tropical cyclone, eye subsidence, baroclinic effects, secondary circulation, gradient balanced vortex, Science
الوصف: Solutions of the secondary (transverse) circulation equation for an axisymmetric, gradient balanced vortex are used to better understand the distribution of subsidence in the eye of a tropical cyclone. This secondary circulation equation is derived using both the physical radius coordinate r and the potential radius coordinate R. In the R-coordinate version, baroclinic effects are implicit in the coordinate transformation and are recovered in the final step of transforming the solution for the streamfunction Ψ back from R-space to r-space. Two types of elliptic problems for Ψ are formulated: 1) the full secondary circulation problem, which is formulated on 0 ≤ R < ∞, with the diabatic forcing due to eyewall convection appearing on the right-hand side of the elliptic equation; 2) the restricted secondary circulation problem, which is formulated on 0 ≤ R ≤ Rew, where the constant Rew is the potential radius of the inside edge of the eyewall, with no diabatic forcing but with the streamfunction specified along R = Rew. The restricted secondary circulation problem can be solved semi-analytically for the case of vertically sheared, Rankine vortex cores. The solutions identify the conditions under which large values of radial and vertical advection of θ are located in the lower troposphere at the outer edge of the eye, thereby producing a warm-ring thermal structure.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2296-6463
Relation: https://www.frontiersin.org/articles/10.3389/feart.2022.1062465/full; https://doaj.org/toc/2296-6463
DOI: 10.3389/feart.2022.1062465
URL الوصول: https://doaj.org/article/c1663819b7074b1c95e99d6e565a66e5
رقم الانضمام: edsdoj.1663819b7074b1c95e99d6e565a66e5
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:22966463
DOI:10.3389/feart.2022.1062465