<p>The possibility of long-term monitoring of the NH<sub>3</sub> total column in the atmosphere from results of ground-based measurements of direct solar radiation in the mid-IR range was demonstrated based on an analysis of high-resolution FTIR-spectra recorded at the St. Petersburg State University atmospheric monitoring station in 2009–2022. Random and systematic uncertainties of the NH<sub>3</sub> total column were estimated. Results of 14-year FTIR monitoring of NH<sub>3</sub> in the atmosphere are presented and compared with data from independent satellite and ground-based measurements.</p>

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Spectroscopic Measurements of Ammonia Total Column at the Atmospheric Monitoring Station of St. Petersburg State University

  • M. V. Makarova,
  • D. V. Ionov,
  • A. V. Poberovskii,
  • S. Ch. Foka,
  • E. F. Mikhailov

摘要

The possibility of long-term monitoring of the NH3 total column in the atmosphere from results of ground-based measurements of direct solar radiation in the mid-IR range was demonstrated based on an analysis of high-resolution FTIR-spectra recorded at the St. Petersburg State University atmospheric monitoring station in 2009–2022. Random and systematic uncertainties of the NH3 total column were estimated. Results of 14-year FTIR monitoring of NH3 in the atmosphere are presented and compared with data from independent satellite and ground-based measurements.