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Revision of the convective transport module CVTRANS 2.4 in the EMAC atmospheric chemistry–climate model
EMAC atmospheric chemistry–climate model convective transport
2015/8/11
The convective transport module, CVTRANS,
of the ECHAM/MESSy Atmospheric Chemistry (EMAC)
model has been revised to better represent the physical flows
and incorporate recent findings o...
Data from the Atmospheric Infrared Sounder (AIRS) on the EOS Aqua spacecraft each day show tens of thousands of Cold Clouds (CC) in the tropical oceans with 10 μm window channel brightness temperature...
Observations of ice multiplication in a weakly convective cell embedded in supercooled mid-level stratus
ice multiplication a weakly convective cell supercooled mid-level stratus
2011/1/19
Simultaneous observations of cloud microphysical properties were obtained by in-situ aircraft measurements and ground based Radar/Lidar. Widespread mid-level stratus cloud was present below a temperat...
Observations of ozone production in a dissipating tropical convective cell during TC4
ozone production a dissipating tropical convective cell TC4
2010/11/30
From 13 July–9 August 2007, 25 ozonesondes were launched from Las Tablas, Panama as part of the Tropical Composition, Cloud, and Climate Coupling (TC4) mission. On 5 August, a strong convective cell f...
Mediterranean hurricanes: large-scale environment and convective and precipitating areas from satellite microwave observations
Mediterranean hurricanes large-scale environment convective precipitating areas satellite microwave observations
2011/1/19
Subsynoptic scale vortices that have been likened to tropical cyclones or polar lows (medicanes) are occasionally observed over the Mediterranean Sea. Generated over the sea, they are usually associat...
Chemistry of rain events in West Africa: evidence of dust and biogenic influence in convective systems
Chemistry of rain events West Africa dust and biogenic influence convective systems
2010/10/11
This paper documents the chemical composition of 7 rain events associated with mesoscale convective systems sampled at the supersite of Banizoumbou, Niger, during the first special observation periods...
The invigoration of deep convective clouds over the Atlantic: aerosol effect, meteorology or retrieval artifact?
deep convective clouds the Atlantic aerosol effect meteorology retrieval artifact
2010/9/21
Associations between cloud properties and aerosol loading are frequently observed in products derived from satellite measurements. These observed trends between clouds and aerosol optical depth sugges...
Studying an effect of salt powder seeding used for precipitation enhancement from convective clouds
salt powder seeding precipitation enhancement convective clouds
2010/9/1
Experimental and theoretical studies of cloud microstructure modification with hygroscopic particles for obtaining additional precipitation amounts from convective clouds are performed. The experiment...
Impact of West African Monsoon convective transport and lightning NOx production upon the upper tropospheric composition: a multi-model study
West African Monsoon NOx production the upper tropospheric composition a multi-model study
2010/8/13
Within the African Monsoon Multidisciplinary Analysis (AMMA), we investigate the impact of nitrogen oxides produced by lightning (LiNOx) and convective transport during the West African Monsoon (WAM) ...
Aerosol-induced changes of convective cloud anvils produce strong climate warming
convective cloud anvils strong climate warming
2010/8/13
The effect of aerosol on clouds poses one of the largest uncertainties in estimating the anthropogenic contribution to climate change. Small human-induced perturbations to cloud characteristics via ae...
Modelling the reversible uptake of chemical species in the gas phase by ice particles formed in a convective cloud
chemical species the gas phase ice particles a convective cloud
2010/8/13
The present paper is a preliminary study preparing the introduction of reversible trace gas uptake by ice particles into a 3-D cloud resolving model. For this a 3-D simulation of a tropical deep conve...
A review of the theoretical basis for bulk mass flux convective parameterization
the theoretical basis bulk mass flux convective parameterization
2010/8/12
Most parameterizations for precipitating convection in use today are bulk schemes, in which an ensemble of cumulus elements with different properties is modelled as a single, representative entraining...
A semi-analytical solution for the mean wind profile in the Atmospheric Boundary Layer:the convective case
semi-analytical solution mean wind profile Atmospheric Boundary Layer convective case
2010/3/5
A novel methodology to derive the average wind profile from the Navier-Stokes equations is presented. The development employs the Generalized Integral Transform Technique (GITT), which combines series...
Corrigendum to“Peroxy radical observations over West Africa during AMMA 2006: photochemical activity in the outflow of convective systems”published in Atmos. Chem. Phys., 9, 3681–3695, 2009
Peroxy radical observations West Africa AMMA photochemical activity
2009/11/9
Corrigendum to“Peroxy radical observations over West Africa during AMMA 2006: photochemical activity in the outflow of convective systems”published in Atmos. Chem. Phys., 9, 3681–3695, 2009.
Clarification on the generation of absolute and potential vorticity in mesoscale convective vortices
absolute and potential vorticity mesoscale convective vortices Clarification
2009/10/13
In this paper, we clarify several outstanding issues concerning the predominant mechanism of vorticity generation in mesoscale convective vortices (MCVs) in weak to modest baroclinic environments with...