title: Trends of Key Greenhouse Gases as Measured in 2009–2022 at the FTIR Station of St. Petersburg State University
metadata.name: dc.contributor.author
metadata.value: Makarova, Maria
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Poberovskii, Anatoly
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Polyakov, Alexander
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Imkhasin, Khamud H.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Ionov, Dmitry
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Makarov, Boris
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kostsov, Vladimir
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Foka, Stefani
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Abakumov, Evgeny
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2024-06-04T09:54:35Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2024-06-04T09:54:35Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2024-05-31
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Makarova, M.; Poberovskii, A.; Polyakov, A.; Imkhasin, K.H.; Ionov, D.; Makarov, B.; Kostsov, V.; Foka, S.; Abakumov, E. Trends of Key Greenhouse Gases as Measured in 2009–2022 at the FTIR Station of St. Petersburg State University. Remote Sens. 2024, 16, 1996. https://doi.org/10.3390/rs16111996
metadata.lang: en_GB
metadata.name: dc.identifier.issn
metadata.value: 2072-4292
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/45511
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Key long-lived greenhouse gases (CO2, CH4, and N2O) are perhaps among the best-studied components of the Earth’s atmosphere today; however, attempts to predict or explain trends or even shorter-term variations of these trace gases are not always successful. Infrared spectroscopy is a recognized technique for the ground-based long-term monitoring of the gaseous composition of the atmosphere. The current paper is focused on the analysis of new data on CO2, CH4, and N2O total columns (TCs) retrieved from high resolution IR solar spectra acquired during 2009–2022 at the NDACC atmospheric monitoring station of St. Petersburg State University (STP station, 59.88°N, 29.83°E, 20 m asl.). The paper provides information on the FTIR system (Fourier-transform infrared) installed at the STP station, and an overview of techniques used for the CO2, CH4, and N2O retrievals. Trends of key greenhouse gases and their confidence levels were evaluated using an original approach which combines the Lomb–Scargle method with the cross-validation and bootstrapping techniques. As a result, the following fourteen-year (2009–2022) trends of TCs have been revealed: (0.56 ± 0.01) % yr−1 for CO2; (0.46 ± 0.02) % yr−1 for CH4; (0.28 ± 0.01) % yr−1 for N2O. A comparison with trends based on the EMAC numerical modeling data was carried out. The trends of greenhouse gases observed at the STP site are consistent with the results of the in situ monitoring performed at the same geographical location, and with the independent estimates of the global volume mixing ratio growth rates obtained by the GAW network and the NOAA Global Monitoring Laboratory. There is reasonable agreement between the CH4 and N2O TC trends for 2009–2019, which have been derived from FTIR measurements at three locations: the STP site, Izaña Observatory and the University of Toronto Atmospheric Observatory.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The authors acknowledge Saint-Petersburg State University for a research project
  123042000071-8 (GZ_MDF_2023-2, PURE ID 93882802). N2O data analysis and trend estimation
  were carried out in the frame of this Project.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Remote Sensing
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: 16;1996
metadata.lang: -
metadata.name: dc.subject
metadata.value: trends of greenhouse gases
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: methane
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: carbon dioxide
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: nitrous oxide
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: remote sensing
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: atmospheric FTIR observations
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Trends of Key Greenhouse Gases as Measured in 2009–2022 at the FTIR Station of St. Petersburg State University
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: remotesensing-16-01996.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/45511/1/remotesensing-16-01996.pdf
resources.format: Adobe PDF
resources.description: article
resources.size: 8,18 MB