Axisymmetric, nearly inviscid circulations in non‐condensing radiative‐convective atmospheres
Axisymmetric, nearly inviscid circulations in non‐condensing radiative‐convective atmospheres
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DOI：
10.1002/qj.271
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发表时间：
2008-07
影响因子：
8.9
通讯作者：
R. Caballero;R. Pierrehumbert;Jonathan L. Mitchell
中科院分区：
文献类型：
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作者：
R. Caballero;R. Pierrehumbert;Jonathan L. Mitchell
我们研究了几乎无粘性的、可压缩的、没有可压缩成分的大气的稳态轴对称环流。假设简化的非灰色辐射传输和对流中性的瞬时调整，我们提出了一个分析理论的深度，宽度和强度的哈德利细胞的行星半径和旋转速率，日射，光学厚度和大气成分。在赤道对称日照下，本文理论预测的Hadley胞宽度与Held和Hou的Boussinesq、牛顿冷却结果基本一致。我们还介绍了一个新的尺度理论的Hadley细胞的宽度下至日日照条件。该理论与轴对称数值结果以及火星和雪球地球的全大气环流模型模拟相比毫不逊色。版权所有© 2008皇家气象学会
We study the steady‐state axisymmetric circulation of nearly inviscid, compressible atmospheres with no condensible component. Assuming simplified non‐grey radiative transfer and instantaneous adjustment to convective neutrality, we present an analytical theory for the depth, width and strength of the Hadley cell in terms of the planetary radius and rotation rate, insolation, optical depth and atmospheric composition. Under equatorially symmetric insolation, the Hadley cell width predicted by the present theory is generally very close to the Boussinesq, Newtonian cooling result of Held and Hou. We also introduce a new scaling theory for Hadley cell width under solstitial insolation conditions. The theory compares favourably with axisymmetric numerical results and also with full general‐circulation model simulations of Mars and Snowball Earth. Copyright © 2008 Royal Meteorological Society