搜索结果: 1-15 共查到“理学 sea salt”相关记录17条 . 查询时间(0.066 秒)
An integrated modeling study on the effects of mineral dust and sea salt particles on clouds and precipitation
mineral dust sea salt particles clouds
2011/2/24
This report addresses the effects of pollution on the development of precipitation in clean ("pristine") and polluted ("hazy") environments in the Eastern Mediterranean by using the Integrated Communi...
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...
Photoinduced oxidation of sea salt halides by aromatic ketones: a source of halogenated radicals
Photoinduced oxidation sea salt halides aromatic ketones halogenated radicals
2009/7/15
The interactions between triplet state benzophenone and halide anion species (Cl, Br and I have been studied by laser flash photolysis (at 355 nm) in aqueous solutions at room temperature. The decay o...
Recovery from episodic acidification delayed by drought and high sea salt deposition
sea salt deposition episodic acidification
2009/4/29
For the prediction of episodic acidification large uncertainties are connected to climatic variability and its effect on drought conditions and sea-salt episodes. In this study data on 342 hydrologic...
Fluxes of microbes,organic aerosols,dust,sea-salt Na ions,non-sea-salt Ca ions,and methanesulfonate onto Greenland and Antarctic ice
Fluxes microbes organic aerosols dust sea-salt Na ions non-sea-salt Ca ions
2010/1/19
Using a spectrofluorimeter with 224-nm laser excitation and six emission bands from 300 to 420 nm to measure fluorescence intensities at 0.3-mm depth intervals in ice cores, we report results of the f...
Laboratory measurements of the optical properties of sea salt aerosol
Laboratory measurements optical properties sea salt aerosol
2009/3/12
The extinction spectra of laboratory generated sea salt aerosols have been measured from 1 μm to 20 μm using a Bruker 66v/S FTIR spectrometer. Concomitant measurements include temperature, pressure, r...
Uptake of HNO3 to deliquescent sea-salt particles: a study using the short-lived radioactive isotope tracer 13N
HNO3 deliquescent sea-salt particles short-lived radioactive isotope tracer 13N
2009/3/12
The uptake of HNO3 to deliquescent airborne sea-salt particles (RH = 55%, P = 760 torr, T = 300 K) at concentrations from 2 to 575 ppbv is measured in an aerosol flow tube using 13N as a tracer. Small...
Modelling the contribution of sea salt and dimethyl sulfide derived aerosol to marine CCN
sea salt dimethyl sulfide aerosol marine CCN
2009/3/11
The concentration of cloud condensation nuclei (CCN) in the marine boundary layer (MBL) was estimated from dimethyl sulfide (DMS) flux, sea salt (SS) emission, and aerosols entrained from the free tro...
The origin of sea salt in snow on Arctic sea ice and in coastal regions
sea salt snow Arctic sea ice coastal regions
2009/3/10
Snow, through its trace constituents, can have a major impact on lower tropospheric chemistry, as evidenced by ozone depletion events (ODEs) in oceanic polar areas. These ODEs are caused by the chemis...
Reactive uptake coefficients for heterogeneous reaction of N2O5 with submicron aerosols of NaCl and natural sea salt
Reactive uptake coefficients N2O5 submicron aerosols NaCl natural sea salt
2009/3/4
The kinetics of uptake of gaseous N2O5 on submicron aerosols containing NaCl and natural sea salt have been investigated in a flow reactor as a function of relative humidity (RH) in the range 30-80% a...
Modelling of nitrate and ammonium-containing aerosols in presence of sea salt
nitrate ammonium-containing aerosols sea salt
2009/1/16
A thermodynamical model for treatment of gas/aerosol partitioning of semi volatile inorganic aerosols has been implemented in a global chemistry and aerosol transport model (Oslo CTM2). The sulphur cy...
Do organic surface films on sea salt aerosols influence atmospheric chemistry? – a model study
organic surface film sea salt aerosols atmospheric chemistry
2008/12/24
Organic material from the ocean's surface can be incorporated into sea salt aerosol particles often producing a surface film on the aerosol. Such an organic coating can reduce the mass transfer betwe...
Consistent simulation of bromine chemistry from the marine boundary layer to the stratosphere – Part 1: Model description, sea salt aerosols and pH
bromine chemistry marine boundary layer stratosphere sea salt aerosols
2008/11/21
This is the first article of a series presenting a detailed analysis of bromine chemistry simulated with the atmospheric chemistry general circulation model ECHAM5/MESSy. Release from sea salt is an i...
The role of sea-salt emissions and heterogeneous chemistry in the air quality of polluted coastal areas
sea-salt emissions heterogeneous chemistry coastal areas
2008/11/21
Open-ocean and surf-zone sea-salt aerosol (SSA) emission parameterizations are incorporated in the CAMx aerosol model and applied over an area with an extended Archipelago (Greece), with a fine grid n...
Parameterization of sea-salt optical properties and physics of the associated radiative forcing
sea-salt optical properties radiative forcing
2008/11/17
The optical properties of sea-salt aerosol have been parameterized at shortwave and longwave wavelengths. The optical properties were parameterized in a simple functional form in terms of the ambient ...