Investigation of tropospheric arctic aerosol and mixed-phase clouds using airborne lidar technique [Elektronische Ressource] / von Iwona Sylwia Stachlewska

Investigation of tropospheric arcticaerosol and mixed-phase clouds usingairborne lidar techniqueDissertationzur Erlangung des akademischen GradesDoktor der Naturwissenschaften (Dr. rer. nat.)in der Wissenschaftsdisziplin Physik der Atmosph¨ areeingereicht an derMathematisch-Naturwissenschaftlichen Fakult¨ atder Universit¨ at PotsdamvonIwona Sylwia StachlewskaStiftung Alfred-Wegener-Institut fur¨ Polar- und MeeresforschungForschungsstelle Potsdam, Telegrafenberg 43A, 14473 PotsdamPotsdam, November 2005I dedicate this piece of work to my beloved parents and siblings...My mother, Teresa, who taught me to fence through my life, win, lose but nevergive up. My father, Henryk, who taught me a hard brave work as a way to exceedlimits of impossible. My sisters, Ola, Gosia and Agata, and brothers, Piotr, Michaland Arek, who taught me that self-realisation comes through sharing and giving.Contents1 Introduction 31.1 Importanceofaerosolsandclouds ....................... 31.2 AerosolsandcloudsintheArctic........................ 51.3 Measurementtechniquesofaerosolsandclouds................ 71.3.1 Lidar as a vital tool for atmospheric studies .............. 81.3.2 Optical and microphysical parameter retrieval from lidar signals . . 82 Arctic field campaigns 102.1 Scientific activities during ASTAR 2004 . . ..................112.1.1 Airborneactivities............................122.1.2 Ground based, satellite and modelling activities . . ..........152.