Рубрики:
ZOTTO TALL TOWER
CHEMICAL-COMPOSITION
ORGANIC AEROSOL
CLIMATE
Кл.слова (ненормированные):
atmospheric composition -- boreal forests -- carbonaceous aerosol -- thermo-optical method
ZOTTO TALL TOWER
CHEMICAL-COMPOSITION
ORGANIC AEROSOL
CLIMATE
Кл.слова (ненормированные):
atmospheric composition -- boreal forests -- carbonaceous aerosol -- thermo-optical method
Аннотация: The results of 2-year (2010-2012) measurements of the concentrations of organic carbon (OC) and elemental carbon (EC), which were taken at the Zotino Tall Tower Observatory (ZOTTO) Siberian background station (61A degrees N, 89A degrees E), are given. Despite the fact that this station is located far from populated areas and industrial zones, the concentrations of OC and EC in the atmosphere over boreal forests in central Siberia significantly exceed their background values. In winter and fall, high concentrations of atmospheric carbonaceous aerosol particles are caused by the long-range transport (similar to 1000 km) of air masses that accumulate pollutants from large cities located in both southern and southwestern regions of Siberia. In spring and summer, the pollution level is also high due to regional forest fires and agricultural burning in the steppe zone of western Siberia in the Russian-Kazakh border region. Background concentrations of carbonaceous aerosol particles were observed within relatively short time intervals whose total duration was no more than 20% of the entire observation period. In summer, variations in the background concentrations of OC closely correlated with air temperature, which implies that the biogenic sources of organic-particle formation are dominating.
WOS,
Scopus
Держатели документа:
St Petersburg State Univ, Petrodvorets 198504, Russia.
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Max Planck Inst Chem, Biogeochem Dept, D-55020 Mainz, Germany.
Доп.точки доступа:
Mikhailov, E. F.; Mironova, S. Yu.; Makarova, M. V.; Vlasenko, S. S.; Ryshkevich, T. I.; Panov, A. V.; Andreae, M. O.; Russian Foundation for Basic Research [12-05-00620-a]; StPSU [11.38.650.2013]; StPSU Resource Center for Geo-Environmental Research and Modeling (Geomodel); German Max Planck Society