Analysis of polar stratospheric cloud measurements from AVHRR

Investigation of polar stratospheric cloud solid particle formation mechanisms using ILAS and AVHRR observations in the Arctic

[1] Satellite observations of denitrification and ice clouds in the Arctic lower stratosphere in February 1997 are used with Lagrangian microphysical box model calculations to evaluate nucleation mechanisms of solid polar stratospheric cloud (PSC) particles. The occurrences of ice clouds are not correlated in time and space with the locations of back trajectories of denitrified air masses, indi...

A study of Type I polar stratospheric cloud formation

Mechanisms for the formation of Type I (nitric acid-based) polar stratospheric louds (PSCs) are discussed. If the pre-existing sulfate aerosols are liquid prior to PSC formation, then nitric acid particles (Type Ib) form by HNO 3 dissolution in aqueous H2SO,• solution droplets. This process does not require a nucleation step for the formation of HNO3 aerosols, so most pre-existing aerosols grow...

Lidar Measurements of Polar Stratospheric Clouds in the Arctic

Polar stratospheric cloud observations by MIPAS on ENVISAT

Polar stratospheric cloud observations by MIPAS on ENVISAT: detection method, validation and analysis of the northern hemisphere winter 2002/2003 R. Spang, J. J. Remedios, L. J. Kramer, L. R. Poole, M. D. Fromm, M. Müller, G. Baumgarten, and P. Konopka ICG I, Research Centre Jülich, Germany EOS/SRC, Department of Physics and Astronomy, University of Leicester, UK Atmospheric Science Competency,...

Polar Stratospheric Cloud (PSC) classification using LIDAR measurements from the recent SAGE III Ozone Loss and Validation Experiment (SOLVE)

Lidar measurements from the recent SAGE III Ozone Loss and Validation Experiment (SOLVE) have been used to identify the number of classes of Polar Stratospheric Clouds (PSCs) and their corresponding characteristics. The backscatter lidar, flown aboard a DC8 aircraft, measures profiles of backscatter at 532 nm and 1064 nm, and depolarization at 532 nm. These data along with the color ratio were ...