搜索结果: 1-15 共查到“大气科学 a model study”相关记录18条 . 查询时间(0.203 秒)
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...
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) ...
Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport
marine cloud albedo emission rates microphysics transport
2010/8/12
Modification of cloud albedo by controlled emission of sea spray particles into the atmosphere has been suggested as a possible geoengineering option to slow global warming. Previous global studies ha...
A three-dimensional model study of methanesulphonic acid to non sea salt sulphate ratio at mid and high-southern latitudes
three-dimensional model methanesulphonic acid mid and high-southern latitudes
2009/12/31
The Antarctic and sub-Antarctic methanesulphonic acid (MSA) to non sea salt sulphate (nssSO4) ratio is simulated with the Laboratoire de Météorologie Dynamique Atmospheric General Circulation Model in...
A model study of the January 2006 low total ozone episode over Western Europe and comparison with ozone sonde data
low total ozone episode Western Europe ozone sonde data
2009/9/11
Total column and stratospheric ozone levels at mid-latitudes often reveal strong fluctuations on time scales of days caused by dynamic processes. In some cases the total ozone column is distinctly red...
Radicals in the marine boundary layer during NEAQS 2004: a model study of day-time and night-time sources and sinks
marine boundary layer NEAQS Radicals
2009/5/15
This paper describes a modelling study of several HOx and NOx species (OH, HO2, organic peroxy radicals, NO3 and N2O5) in the marine boundary layer. A model based upon the Master Chemical Mechanism (M...
Long-term behavior of the concentration of the minor constituents in the mesosphere – a model study
Long-term behavior minor constituents mesosphere
2009/5/6
We investigate the influence the rising concentrations of methane, nitrous oxide and carbon dioxide which have occurred since the pre-industrial era, have had on the chemistry of the mesosphere. For t...
NAT-rock formation by mother clouds: a microphysical model study
NAT-rock formation mother clouds microphysical model
2009/3/12
Polar stratospheric clouds (PSCs) of type 1a or 1a-enh containing high number densities of nitric acid trihydrate (NAT) particles, can act as mother clouds for extremely large NAT particles, termed NA...
A three-dimensional model study of long-term mid-high latitude lower stratosphere ozone changes
three-dimensional model long-term mid-high latitude lower stratosphere ozone changes
2009/3/11
We have used a 3D off-line chemical transport model (CTM) to study the causes of the observed changes in ozone in the mid-high latitude lower stratosphere from 1979-1998. The model was forced by Europ...
A model study of ozone in the eastern Mediterranean free troposphere during MINOS
ozone eastern Mediterranean free troposphere MINOS
2009/3/11
A coupled tropospheric chemistry-climate model is used to analyze tropospheric ozone distributions observed during the MINOS campaign in the eastern Mediterranean region (August, 2001). Modeled ozone ...
A one dimensional model study of the mechanism of halogen liberation and vertical transport in the polar troposphere
halogen liberation vertical transport polar troposphere
2009/3/10
Sudden depletions of tropospheric ozone during spring were reported from the Arctic and also from Antarctic coastal sites. Field studies showed that those depletion events are caused by reactive halog...
A box model study on photochemical interactions between VOCs and reactive halogen species in the marine boundary layer
photochemical interactions VOCs reactive halogen species marine boundary layer
2009/3/6
A new chemical scheme is developed for the multiphase photochemical box model SEAMAC (size-SEgregated Aerosol model for Marine Air Chemistry) to investigate photochemical interactions between volatile...
Model study of multiphase DMS oxidation with a focus on halogens
multiphase DMS oxidation halogens
2009/2/25
We studied the oxidation of dimethylsulfide (DMS) in the marine boundary layer (MBL) with a one-dimensional numerical model and focused on the influence of halogens. Our model runs show that there is ...
Three-dimensional model study of the Arctic ozone loss in 2002/2003 and comparison with 1999/2000 and 2003/2004
Three-dimensional model Arctic ozone loss
2009/1/23
We have used the SLIMCAT 3-D off-line chemical transport model (CTM) to quantify the Arctic chemical ozone loss in the year 2002/2003 and compare it with similar calculations for the winters 1999/2000...
The initial dispersal and radiative forcing of a Northern Hemisphere mid-latitude super volcano: a model study
Northern Hemisphere mid-latitude volcano
2008/12/30
The chemistry climate model MAECHAM4/ CHEM with interactive and prognostic volcanic aerosol and ozone was used to study the initial dispersal and radiative forcing of a possible Northern Hemisphere mi...