Biomass burning aerosol play an important role in the Earth’s radiative budget, as it contains a significant amount of black carbon that absorbs solar radiation. The lidar measurements are conducted quasi-continuously over Warsaw at the Remote Sensing Laboratory (RSlab) of the Institute of Geophysics, Faculty of Physics, University of Warsaw since 2013. The measurements performed by the multiwavelength PollyXT lidar system allowed to identify and analyze the cases of biomass burning aerosols inflow over Warsaw from different directions and under different meteorological conditions.
The main identified sources of aerosol from biomass combustion over Warsaw are North America and Eastern Europe (Ukraine), whereas the aerosol from North America was observed in the higher parts of the atmosphere, partly having features of stratospheric smoke. The presentation will report the optical properties based on several selected inflow cases, as well as the unique analysis of the fine-scale aerosol microphysical parameters for the selected case.
Dietrich Althausen, Ronny Engelmann, Holger Baars, Birgit Heese, Thomas Kanitz, Mika Komppula, Eleni Giannakaki, Anne Pfüller, Ana Maria Silva, Jana Preißler, Frank Wagner, Juan Luis Rascado, Sergio Pereira, Jae-Hyun Lim, Joon Young Ahn, Matthias Tesche, Iwona Stachlewska
PollyNET is a growing global network of automatized multiwavelength polarization Raman lidars of type Polly (Althausen et al., 2009). The goal of this network is to conduct advanced remote measurements of aerosol profiles and clouds by the same type of instrument. Since 2006 this network assists the controlling and adjustment activities of Polly systems. A central facility receives the data from the Polly measurements. The observational data are displayed in terms of quicklooks at http://polly:tropos.de in near real time. In this way, the network serves as a central information platform for inquisitive scientists. PollyNET comprises permanent stations at Leipzig (Germany), Kuopio (Finland), Evora (Portugal), Baengnyeong Island (South Korea), Stockholm (Sweden), and Warsaw (Poland). Non-permanent stations have been used during several field experiments under both urban and very remote conditions - like the Amazon rainforest. These non-permanent stations were lasting from several weeks up to one year and have been located in Brazil, India, China, South Africa, Chile, and also aboard the German research vessels Polarstern and Meteor across the Atlantic. Within PollyNET the interaction and knowledge exchange is encouraged between the Polly operators. This includes maintenance support in system calibration procedures and distribution of latest hardware and software improvements. This presentation introduces the PollyNET. Main features of the Polly systems will be presented as well as recent instrumental developments. Some measurement highlights achieved within PollyNET are depicted.
The background aerosol conditions and the conditions contaminated with aerosol of antropogenic origin (Arctic haze) were investigated during two Arctic campaigns, the Arctic Study of Tropospheric Aerosols, Clouds and Radiation (ASTAR) in 2004 and Svalbard Experiment (SVALEX) in 2005, respectively. Results obtained by application of the two-stream inversion algorithm to the elastic lidar signals measured on two days representative for each campaign are presented. The calculations were done using signals obtained by the nadir-looking Airborne Mobile Aerosol Lidar (AMALi) probing lower troposphere from the AWI research aircraft Polar 2 overflying the stationary Koldewey Aerosol Raman Lidar (KARL) based at the AWI Koldewey Research Station in Ny Ålesund, Svalbard. The method allowed independent retrieval of extinction and backscatter coefficient profiles and lidar ratio profiles for each of the two days representative for both clean and polluted lower troposphere in Arctic.
Conference Committee Involvement (1)
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing
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