搜索结果: 1-15 共查到“大气科学 Convection”相关记录28条 . 查询时间(0.203 秒)
Influence of convection and aerosol pollution on ice cloud particle effective radius
convection and aerosol pollution ice cloud particle radius
2011/1/20
Satellite observations show that ice cloud effective radius (re) increases with ice water content (IWC) but decreases with aerosol optical thickness (AOT). Using least-squares fitting to the observed ...
Impact of deep convection in the tropical tropopause layer in West Africa: in-situ observations and mesoscale modelling
deep convection the tropical tropopause layer West Africa in-situ observations mesoscale modelling
2011/1/19
We present the analysis of the impact of convection on the composition of the tropical tropopause layer region (TTL) in West-Africa during the AMMA-SCOUT campaign. Geophysica M55 aircraft observations...
Modelling deep convection and its impacts on the tropical tropopause layer
deep convection the tropical tropopause layer
2010/11/30
The UK Met Office's Unified Model is used at a climate resolution (N216, ~0.83°×~0.56°, ~60 km) to assess the impact of deep tropical convection on the structure of the tropical tropopause layer (TTL)...
Evidence of the impact of deep convection on reactive Volatile Organic Compounds in the upper tropical troposphere during the AMMA experiment in West Africa
deep convection reactive Volatile Organic Compounds the AMMA experiment West Africa
2010/11/29
A large dataset of reactive trace gases was collected for the first time over West Africa during the African Monsoon Multidisciplinary Analysis (AMMA) field experiment in August 2006. Volatile Organic...
A model study on the influence of overshooting convection on TTL water vapour
overshooting convection TTL water vapour
2010/10/21
Overshooting deep convection that penetrates into the Tropical Tropopause Layer (TTL) is thought to have an important role in regulating the water vapour content of this region. Yet, the net effect of...
Stratospheric water vapour budget and convection overshooting the tropopause: modelling study from SCOUT-AMMA
Stratospheric water vapour the tropopause SCOUT-AMMA
2010/9/14
The aim of this paper is to study the impacts of overshooting convection at a local scale on the water distribution in the tropical UTLS. Overshooting convection is assumed to be one of the processes ...
A climatological perspective of deep convection penetrating the TTL during the Indian summer monsoon from the AVHRR and MODIS instruments
deep convection the TTL the Indian summer monsoon the AVHRR and MODIS instruments
2010/8/13
The impact of very deep convection on the water budget and thermal structure of the tropical tropopause layer is still not well quantified, not least because of limitations imposed by the available ob...
Uncertainties in atmospheric chemistry modelling due to convection parameterisations and subsequent scavenging
atmospheric chemistry modelling parameterisations subsequent scavenging
2010/2/21
Moist convection in global modelling contributes significantly to the transport of energy, momentum, water and trace gases and aerosols within the troposphere. Since convective clouds are on a scale t...
The tropical marine boundary layer under a deep convection system: a large-eddy simulation study
the tropical marine boundary layer a deep convection system a large-eddy simulation study
2009/12/2
The tropical marine PBL under the influence of a deep convection system is investigated using a large-domain LES that resolves a wide range of scales, from mesoscale cloud clusters down to energ...
Generation of free convection due to changes of the local circulation system
free convection local circulation system
2009/11/19
Eddy-covariance and Sodar/RASS experimental measurement data of the COPS (Convective and Orographically-induced Precipitation Study) field campaign 2007 are used to investigate the generation of near-...
Regional modelling of tracer transport by tropical convection – Part 2: Sensitivity to model resolutions
tracer transport tropical convection model resolutions
2009/9/27
The general objective of this series of two papers is to evaluate long duration limited-area simulations with idealised tracers as a possible tool to assess the tracer transport in chemistry-transport...
Regional modelling of tracer transport by tropical convection – Part 1: Sensitivity to convection parameterization
tracer transport tropical convection convection parameterization
2009/9/27
The general objective of this series of papers is to evaluate long duration limited area simulations with idealised tracers as a tool to assess tracer transport in chemistry-transport models (CTMs). I...
A statistical analysis of the influence of deep convection on water vapor variability in the tropical upper troposphere
deep convection water vapor variability tropical upper troposphere
2009/8/18
The factors that control the influence of deep convective detrainment on water vapor in the tropical upper troposphere are examined using observations from multiple satellites in conjunction with a tr...
Influence of different convection parameterisations in a GCM
different convection parameterisations GCM
2009/1/21
In global models of the atmosphere convection is parameterised, since the typical scale of this process is smaller than the model resolution. Here we address some of the uncertainties arising from the...
Wind-profiler observations of gravity waves produced by convection at mid-latitudes
Wind-profiler observations gravity waves convection mid-latitudes
2009/1/13
This work presents a case study which includes regions of large rapidly varying vertical velocities observed by a VHF wind-profiler at Aberystwyth (52.4° N, 4.1° W). Analysis indicates that this regio...