A Moist Benchmark Calculation for Atmospheric General Circulation Models

A Moist Benchmark Calculation for Atmospheric General Circulation Models

A benchmark calculation is designed to compare the climate and climate sensitivity of atmospheric general circulation models (AGCMs). The experimental setup basically follows that of the aquaplanet experiment (APE) proposed by Neale and Hoskins, but a simple mixed layer ocean is embedded to enable air–sea coupling and the prediction of surface temperature. In calculations with several AGCMs, th...

The global atmospheric circulation on moist isentropes.

The global atmospheric circulation transports energy from the equatorial regions to higher latitudes through a poleward flow of high-energy and -entropy parcels and an equatorward flow of air with lower energy and entropy content. Because of its turbulent nature, this circulation can only be described in some averaged sense. Here, we show that the total mass transport by the circulation is twic...

Estimation and Analysis of Caspian Region's Future Rainfalls by Using General Atmospheric Circulation Models.

In recent years, the severe fluctuations in precipitation have affected various parts of the country. On the southern coasts of the Caspian Sea, precipitation as one of the important climatic parameters has undergone changes due to global climate change. In the present study, we tried to evaluate the effect of climate change on rainfall in this region by applying a suitable model. In this study...

Parallel Spectral Element Dynamical Core for Atmospheric General Circulation Models

The response of moist convection and the atmospheric general circulation to climate Activ

In this thesis, the response of atmospheric circulations to changes in surface temperature is investigated. Both cloud-scale and planetary-scale circulations are considered, and a number of different theoretical and numerical tools are employed. First, mechanisms maintaining the thermal stratification of a convecting atmosphere are examined based on simulations of radiative-convective equilibri...