Aerosol Optical Depth Measured at Different Coastal Boundary Layers and Its Links with Synoptic-Scale Features

• Published in: Remote Sensing
• Main Authors: Agnieszka Ponczkowska, Tymon Zielinski, Tomasz Petelski, Krzysztof Markowicz, Giorgos Chourdakis, Giorgos Georgoussis
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2009
• Subjects: relative topography; aerosol; coastal area; remote sensing; Science; Q; Arctic; Norway; Northern Norway; Spitsbergen
• Online Access: https://doi.org/10.3390/rs1030557; https://doaj.org/article/857ed262605741f5869691d6de334293

This paper presents the results of measurements of aerosol optical properties which were made between 2006 and 2008 within the framework of various international projects in different locations such as Spitsbergen, northern Norway and Crete. The investigations were made under different baric topography conditions and in various seasons of the year which facilitated the investigations of spatial and temporal dependencies between upper troposphere mass state and spectral variations of aerosol properties. The results of aerosol optical depth (AOD) measurements showed significant episodes during which jet stream events (300 hPa surface) over the Arctic were present. The mean spectral characteristics of AOD from “before” and “after” the event differ by 0.14 versus the “during” phase of the episode. The macrometeorological relative topography charts shown also the relationships between the 500 hPa, close sea-level pressure SLP (1,000 hPa) charts surfaces and the attenuation caused by aerosol scattering and absorption in vertical profiles during the afternoon hours.