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  • 1
    Online Resource
    Online Resource
    A Decade of Poland-AOD Aerosol Research Network Observations
    MDPI AG ; 2021
    In:  Atmosphere Vol. 12, No. 12 ( 2021-11-27), p. 1583-
    Details
    In: Atmosphere, MDPI AG, Vol. 12, No. 12 ( 2021-11-27), p. 1583-
    Abstract: The Poland-AOD aerosol research network was established in 2011 to improve aerosol–climate interaction knowledge and provide a real-time and historical, comprehensive, and quantitative database for the aerosol optical properties distribution over Poland. The network consists of research institutions and private owners operating 10 measurement stations and an organization responsible for aerosol model transport simulations. Poland-AOD collaboration provides observations of spectral aerosol optical depth (AOD), Ångstrom Exponent (AE), incoming shortwave (SW) and longwave (LW) radiation fluxes, vertical profiles of aerosol optical properties and surface aerosol scattering and absorption coefficient, as well as microphysical particle properties. Based on the radiative transfer model (RTM), the aerosol radiative forcing (ARF) and the heating rate are simulated. In addition, results from GEM-AQ and WRF-Chem models (e.g., aerosol mass mixing ratio and optical properties for several particle chemical components), and HYSPLIT back-trajectories are used to interpret the results of observation and to describe the 3D aerosol optical properties distribution. Results of Poland-AOD research indicate progressive improvement of air quality and at mospheric turbidity during the last decade. The AOD was reduced by about 0.02/10 yr (at 550 nm), which corresponds to positive trends in ARF. The estimated clear-sky ARF trend is 0.34 W/m2/10 yr and 0.68 W/m2/10 yr, respectively, at TOA and at Earth’s surface. Therefore, reduction in aerosol load observed in Poland can significantly contribute to climate warming.
    Type of Medium: Online Resource
    ISSN: 2073-4433
    URL: Article
    DOI: 10.3390/atmos12121583
    Language: English
    Publisher: MDPI AG
    Publication Date: 2021
    detail.hit.zdb_id: 2605928-9
    SSG: 23
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  • 2
    Online Resource
    Online Resource
    Comparison of the Linke turbidity factor in Warsaw and in Belsk
    Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University ; 2017
    In:  Bulletin of Geography. Physical Geography Series Vol. 13, No. 1 ( 2017-12-1), p. 71-81
    Details
    In: Bulletin of Geography. Physical Geography Series, Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University, Vol. 13, No. 1 ( 2017-12-1), p. 71-81
    Abstract: The paper describes the relationship between direct solar radiation in a city (Warsaw) and in its broadly-defined suburban area (Belsk). The analysis covers the days of 1969-2003 when observations were carried out at both sites. The degree of extinction of solar radiation was expressed by means of Linke’s turbidity factor. Its mean annual value on the selected days of the period under consideration was 3.00± 0.10 in Warsaw and 2.87±0.11 in Belsk. Average atmospheric turbidity for individual seasons of the year as well as for the whole year was higher in Warsaw than in Belsk. In all cases, except for the summer, these differences were statistically significant. The period considered was divided into two sub-periods (1969-1993 and 1994-2003), in which atmospheric turbidity in Warsaw and in Belsk was compared by individual seasons and whole years. At both analysed sites Linke’s atmospheric turbidity factor decreased in 1994-2003, compared to the values for the earlier sub-period (1969-1993). However, the average annual atmospheric turbidity in Warsaw in comparison to Belsk remained the same, i.e. greater turbidity occurred in the city in both sub-periods.
    Type of Medium: Online Resource
    ISSN: 2300-8490
    URL: Article
    DOI: 10.1515/bgeo-2017-0015
    Language: English
    Publisher: Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University
    Publication Date: 2017
    detail.hit.zdb_id: 2753133-8
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  • 3
    Online Resource
    Online Resource
    Study of vertical structure of aerosol optical properties with sun photometers and ceilometer during the MACRON campaign in 2007
    Springer Science and Business Media LLC ; 2012
    In:  Acta Geophysica Vol. 60, No. 5 ( 2012-10), p. 1308-1337
    Details
    In: Acta Geophysica, Springer Science and Business Media LLC, Vol. 60, No. 5 ( 2012-10), p. 1308-1337
    Type of Medium: Online Resource
    ISSN: 1895-6572 , 1895-7455
    URL: Article
    DOI: 10.2478/s11600-011-0056-7
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2012
    detail.hit.zdb_id: 2231673-5
    SSG: 16,13
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  • 4
    Online Resource
    Online Resource
    A large reduction of direct aerosol cooling over Poland in the last decades
    Wiley ; 2022
    In:  International Journal of Climatology Vol. 42, No. 7 ( 2022-06-15), p. 4129-4146
    Details
    In: International Journal of Climatology, Wiley, Vol. 42, No. 7 ( 2022-06-15), p. 4129-4146
    Abstract: This paper presents an analysis of the long‐term (1982–2015) variability of aerosol optical properties, as well as aerosol and greenhouse gases (GHG) direct radiative forcing (RF) in central Europe on the basis of MERRA‐2 reanalysis and ground‐based observation. Calculations of longwave (LW) and shortwave (SW) RF were made with the use of the off‐line Fu‐Liou radiative transfer model and were preceded by the sensitivity study of the code's input parameters. Then, the long‐term mean as well as the annual variability for selected regions of aerosol optical properties and radiative forcing were analysed. The mean AOD trend was −0.056 ± 9% per decade and AOD was reduced by 48% between 1982 and 2015. While for 1982–1990 the trend per decade was −0.12 ± 20%, for 1991–2000 it was −0.17 ± 17% and only −0.02 ± 31% in the last 15 years (2001–2015). The trend of the aerosol radiative forcing (ARF) was 1.52 ± 0.12 W·m −2 /10 year and 1.21 ± 0.19 W·m −2 /10 year at top of the atmosphere (TOA) and at Earth's surface, respectively. The trend for GHG was significantly smaller and it equalled 0.27 ± 0.01 W·m −2 /10 year at TOA and 0.17 ± 0.01 W·m −2 /10 year at the surface. Changes in GHG and aerosol direct effect produced additional 3.2 ± 0.2 W·m −2 at TOA, which could be associated with the observed regional climate warming. The change of the direct aerosol effect was about 4 times the GHG RF. The influence of aerosol loading reduction on the radiation budget was significantly higher in the 1990s of the 20th century in comparison to the first decades of the 21st. The effect of aerosol reduction has significant impact on air temperature changes during warm season and negligible during winter.
    Type of Medium: Online Resource
    ISSN: 0899-8418 , 1097-0088
    URL: Issue
    URL: Article
    DOI: 10.1002/joc.v42.7
    DOI: 10.1002/joc.7488
    RVK:
    RA 1000
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1491204-1
    SSG: 14
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