Ion - mediated nucleation in the atmosphere : Key controlling parameters , 1 implications , and look - up table
نویسنده
چکیده
منابع مشابه
Ion-mediated nucleation in the atmosphere: Key controlling parameters, implications, and look-up table
[1] Nucleation is an important source of atmospheric particles and ubiquitous ions in the atmosphere have long been known to promote nucleation. An ion-mediated nucleation (IMN) mechanism based on a kinetic model is supported by recent measurements of the excess charge on freshly nucleated particles and ion cluster evolution during nucleation events. Here we investigate the dependence of steady...
متن کاملBinary H2SO4-H2O homogeneous nucleation based on kinetic quasi-unary nucleation model: Look-up tables
[1] Recently, we have shown that the binary homogeneous nucleation (BHN) of H2SO4 and H2O can be treated as a quasi-unary nucleation (QUN) of H2SO4 in the equilibrium with H2O vapor and have developed a kinetic H2SO4-H2O nucleation model, which simulates the dynamic evolutions of cluster distributions explicitly. In this paper we present improved and updated version of the QUN model, which has ...
متن کاملUpdated H2SO4-H2O binary homogeneous nucleation look-up tables
[1] The calculated rates of H2SO4-H2O binary homogeneous nucleation (BHN), which is the only nucleation mechanism currently widely used in global aerosol models, are well known to have large uncertainties. Recently, we have reduced the uncertainties in the BHN rates on the basis of a kinetic quasi-unary nucleation (KQUN) model, by taking into account the measured bonding energetics of H2SO4 mon...
متن کاملUptake of neutral polar vapor molecules by charged clusters/particles: Enhancement due to dipole-charge interaction
[1] Recently proposed ion-mediated nucleation theory suggests that the enhanced uptake of neutral polar molecules by the charged clusters as a result of dipole-charge interaction may be critical to the nucleation of particles in the atmosphere. A rigorous parameterization of the enhancement effect of dipole-charge interaction on the growth of charged clusters is presented and the important para...
متن کاملMicrowave Imaging Using SAR
Polarimetric Synthetic Aperture Radar (Pol.-SAR) allows us to implement the recognition and classification of radar targets. This article investigates the arrangement of scatterers by SAR data and proposes a new Look-up Table of Region (LTR). This look-up table is based on the combination of (entropy H/Anisotropy A) and (Anisotropy A/scattering mechanism α), which has not been reported up now. ...
متن کامل