Axisymmetric Hadley Cell Theory with a Fixed Tropopause Temperature Rather than Height
نویسندگان
چکیده
منابع مشابه
Equilibrium temperature distribution and Hadley circulation in an axisymmetric model
The impact of the equilibrium temperature distribution, θE, on the Hadley circulation simulated by an axisymmetric model is studied. The θE distributions that drive the model are modulated here by two parameters, n and k, the former controlling the horizontal broadness and the latter controlling the vertical stratification of θE. In the present study, variations in the θE distribution mimic cha...
متن کاملCirculation Sensitivity to Tropopause Height
The possibility that the tropopause could be lower during an ice-age cooling leads to an examination of the general sensitivity of global circulations to the tropopause height by altering a constant stratospheric temperature Ts in calculations with a dry, global, multilevel, spectral, primitive equation model subject to a simple Newtonian heating function. In general, lowering the tropopause by...
متن کاملReasoning from Data Rather than Theory
The current framework for constructing intelligent tutoring systems (ITS) is to use psychological/pedagogical theories of learning, and encode this knowledge into the tutor. However, this approach is both expensive and not sufficiently flexible to support reasoning that some system designers would like intelligent tutors to do. Therefore, we propose using machine learning to automatically deriv...
متن کاملHadley Cell Dynamics in a Primitive Equation Model. Part I: Axisymmetric Flow
A strategy is adopted that applies the mean meridional circulation (MMC) equation to two different steady states of a primitive equation model. This allows for the investigation of the mechanisms behind the sensitivity of the Hadley cell structure to individual source terms in an axisymmetric circulation. Specifically, the strategy allows the MMC response to the individual source terms to be pa...
متن کاملDetermining the tropopause height from gridded data
[1] A method is presented to determine tropopause height from gridded temperature data with coarse vertical resolution. The algorithm uses a thermal definition of the tropopause, which is based on the concept of a ‘‘threshold lapse-rate’’. Interpolation is performed to identify the pressure at which this threshold is reached and maintained for a prescribed vertical distance. The method is verif...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2020
ISSN: 0022-4928,1520-0469
DOI: 10.1175/jas-d-19-0169.1