The latitudinal and seasonal dependences of vertical profiles of the averaged vertical wind for different time intervals from 1992 to 2006 based on the data of the UKMO atmosphere general circulation model are analyzed. It is shown that monthly average amplitudes of the vertical wind are approximately +/- 5 mm/s, while annual average ones are +/- 1 mm/s. The upward wind can provide the vertical lifting against gravity for sufficiently large (up to 3-5 mu m) aerosol particles with a density up to 1.0-1.5 g/cm(3) at stratospheric and mesospheric altitudes. The vertical wind probably is a substantial factor of particle motion up to altitudes of 30-40 km and can change essentially the sedimentation rate and the residence time of stratospheric aerosols. The structure of the averaged fields of vertical wind supposes the opportunity of formation of dynamically stable aerosol layers in the middle stratosphere.
Язык оригиналаАнглийский
Название основной публикацииAAAS08: 2ND ADVANCED ATMOSPHERIC AEROSOL SYMPOSIUM
Подзаголовок основной публикацииbook
РедакторыE. Ranzi
Место публикацииMILANO
ИздательAIDIC-Italian Association of Chemical Engineering
Страницы329-335
Число страниц7
Том16
ISBN (печатное издание)978-88-95608-03-7
СостояниеОпубликовано - 2008

Серия публикаций

НазваниеChemical Engineering Transactions
ISSN (печатное издание)1974-9791

    Предметные области WoS

  • Технологии, Химические
  • Науки об окружающей среде
  • Метеорология и науки об атмосфере

ID: 38655027