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Aluminium in an ocean general circulation model compared with the West Atlantic Geotraces cruises
Aluminium Dust deposition Modelling PISCES Biogenic sil-ica GEOTRACES
2012/2/28
A model of aluminium has been developed and implemented in an Ocean General Circulation Model (NEMO-PISCES). In the model, aluminium enters the ocean by means of dust deposition. The internal oceanic ...
Residual circulation trajectories and transit times into the extratropical lowermost stratosphere
the extratropical lowermost stratosphere residual circulation trajectories
2011/2/24
Transport into the extratropical lowermost stratosphere (LMS) can be divided into a slow part (time-scale of several months to years) associated with the global-scale stratospheric residual circulatio...
Interpreting the cloud cover – aerosol optical depth relationship found in satellite data using a general circulation model
the cloud cover aerosol optical depth relationship satellite data a general circulation model
2010/8/16
Statistical analysis of satellite data shows a positive correlation between aerosol optical depth (AOD) and total cloud cover (TCC). Reasons for this relationship have been disputed in recent literatu...
On the roles of circulation and aerosols in the decline of mist and dense fog in Europe over the last 30 years
circulation and aerosols mist dense fog Europe the last 30 years
2010/8/13
Fog and mist are meteorological phenomena that have significant contributions to temperature variations. Understanding and predicting them is also crucial for transportation risk management. It has be...
Sensitivity of tracer transport to model resolution, prescribed meteorology and tracer lifetime in the general circulation model ECHAM5
model resolution prescribed meteorology tracer lifetime the general circulation model ECHAM5
2010/8/12
Atmospheric transport of traces gases and aerosols plays an important role in the distribution of air pollutants and radiatively active compounds. For model simulations of chemistry-climate interactio...
Mid-Pliocene shifts in ocean overturning circulation and the onset of Quaternary-style climates
Mid-Pliocene shifts Quaternary-style climates ocean overturning circulation
2009/12/3
A major tipping point of Earth's history occurred during the mid-Pliocene: the onset of major Northern-Hemisphere Glaciation (NHG) and of pronounced, Quaternary-style cycles of glacial-to-interglacial...
The influence of the circulation on surface temperature and precipitation patterns over Europe
circulation precipitation patterns surface temperature
2009/12/3
The atmospheric circulation clearly has an important influence on variations in surface temperature and precipitation. In this study we illustrate the spatial patterns of variation that occur for the...
Aerosol indirect effects – general circulation model intercomparison and evaluation with satellite data
Aerosol indirect effects general circulation model satellite data
2009/11/19
Aerosol indirect effects continue to constitute one of the most important uncertainties for anthropogenic climate perturbations. Within the international AEROCOM initiative, the representation of aero...
Probing the linearity and nonlinearity in the transitions of the atmospheric circulation
linearity nonlinearity transitions atmospheric circulation
2009/11/12
In this paper, we apply the principles of information theory that relate to the definition of nonlinear predictability, which is a measure that describes both the linear and nonlinear components of a ...
Simulation of ozone production in a complex circulation region using nested grids
ozone production complex circulation region nested grids
2009/2/26
During the ESCOMPTE precampaign (summer 2000, over Southern France), a 3-day period of intensive observation (IOP0), associated with ozone peaks, has been simulated. The comprehensive RAMS model, vers...
Mexico City basin wind circulation during the MCMA-2003 field campaign
Mexico City MCMA-2003 field campaign
2009/2/16
MCMA-2003 was a major field campaign investigating the atmospheric chemistry of the Mexico City Metropolitan Area (MCMA) in April of 2003. This paper describes the wind circulation patterns during th...
The atmospheric chemistry general circulation model ECHAM5/MESSy1: consistent simulation of ozone from the surface to the mesosphere
atmospheric chemistry general circulation model ECHAM5/MESSy1 mesosphere
2009/1/19
The new Modular Earth Submodel System (MESSy) describes atmospheric chemistry and meteorological processes in a modular framework, following strict coding standards. It has been coupled to the ECHAM5 ...
Towards a better representation of the solar cycle in general circulation models
solar cycle general circulation models
2008/12/23
We introduce the improved Freie Universität Berlin (FUB) high-resolution radiation scheme FUBRad and compare it to the 4-band standard ECHAM5 SW radiation scheme of Fouquart and Bonnel (FB). Both...
Observed poleward expansion of the Hadley circulation since 1979
poleward expansion Hadley circulation
2008/12/22
Using three meteorological reanalyses and three outgoing long-wave radiation (OLR) datasets, we show that the Hadley circulation has a significant expansion of about 2 to 4.5 degrees of latitude since...
A revised linear ozone photochemistry parameterization for use in transport and general circulation models: multi-annual simulations
linear ozone photochemistry parameterization general circulation models multi-annual imulations
2008/12/9
This article describes the validation of a linear parameterization of the ozone photochemistry for use in upper tropospheric and stratospheric studies. The present work extends a previously developed ...