• 49.573°N 15.080°E 536 m a.s.l.

Observational platform

Czechia

• Czech Academy of Sciences, Global Change Research Institute (ÚVGZ AV ČR)
• Czech Academy of Sciences, Institute of Chemical Process Fundamentals (ÚCHP AV ČR)
• Czech Hydrometeorological Institute (CHMI)

http://actris-ri.cz

• Jakub Ondráček
  Facility PI
• Adela Holubova
  Facility PI (since 1 Jan 2023)

Ground-The National Atmospheric Observatory Košetice (NAOK) was established by the Czech Hydrometeorological Institute as a department specialized in long-term air quality monitoring and research at the background scale in 1988. NAOK is located in free area outside of settlement and direct sources of pollution. The main tasks of the observatory throughout its history were to detect the long-term trends of air quality at the background scale of the CR and Central Europe and to represent the CR in the long-term programmes of air quality monitoring and research (EUSAAR, ACTRIS, GAW, EMEP, ICP-IM). During the lifetime of NAOK, the activities of research institutes of the Academy of Science of The Czech Republic and Universities were gradually integrated. In 2013, 250 m high tall tower was built by the Global Change Research Institute. Currently, the capacity of NAOK is formed by research and operating supplement of four partner institutions integrated under the umbrella of larbased fixed

Currently, the main scientific direction is transition from the observation of status of the atmosphere to the observation of processes in the atmosphere regarding atmospheric aerosols, trace gases and clouds. This transition needs highly time resolved measurement of all parameters that are not yet measured on-line and measurement of new parameters that are not studied and that represent key variables related to known processes or possibly elucidating new mechanisms of such processes. In the case of online and semi-online aerosol chemical analysis a transition from characterization of group of compounds to individual molecules and elemental analysis is necessary. Off-line chemical analysis of VOC have to be replaced by on-line analysis. These changes will be completed by on-line analysis of intermediate molecules and radicals that are responsible for many atmospheric chemical reactions. To elucidate carbonaceous aerosol processes further stable isotopes of carbon will be measured both

• Váňa et al. (2020). Long-Term Trends of Air Pollution at National Atmospheric Observatory Košetice (ACTRIS, EMEP, GAW). Atmosphere, 11(5), 537. https://doi.org/10.3390/atmos11050537
• Zikova & Zdimal (2016). Precipitation scavenging of aerosol particles at a rural site in the Czech Republic. Tellus B: Chemical and Physical Meteorology, 68(1), 27343. https://doi.org/10.3402/tellusb.v68.27343
• Vodička et al. (2019). Seasonal study of stable carbon and nitrogen isotopic composition in fine aerosols at a Central European rural background station. Atmos. Chem. Phys., 19(6), 3463-3479. https://doi.org///10.5194/acp-19-3463-2019
• Zíková et al. (2016). On the use of the field Sunset semi-continuous analyzer to measure equivalent black carbon concentrations. Aerosol Science and Technology, 50(3), 284-296. https://doi.org///10.1080/02786826.2016.1146819
• Kalina et al. (2017). Passive Air Samplers As a Tool for Assessing Long-Term Trends in Atmospheric Concentrations of Semivolatile Organic Compounds. Environ. Sci. Technol., 51(12), 7047-7054. https://doi.org/10.1021/acs.est.7b02319
• Kozáková et al. (2018). The influence of local emissions and regional air pollution transport on a European air pollution hot spot. Environ Sci Pollut Res, 26(2), 1675-1692. https://doi.org///10.1007/s11356-018-3670-y