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Retrieval of NO2 Tropospheric Column from Ground-Based FTIR Measurements of Direct Solar Radiation.
- Source :
- Atmospheric & Oceanic Optics; 2023 Suppl 1, Vol. 36, pS51-S58, 8p
- Publication Year :
- 2023
-
Abstract
- Based on the analysis of high-resolution FTIR spectra recorded at the atmospheric monitoring station of St. Petersburg State University during 2009–2022, a possibility of deriving the NO<subscript>2</subscript> tropospheric column from ground-based measurements of direct solar radiation in the mid-IR range is studied. The best agreement (correlation coefficient r = 0.68) with simultaneous DOAS measurements of the NO<subscript>2</subscript> tropospheric column at the same monitoring station is provided by a retrieval technique based on the use of the spectral range 2914.30–2914.85 cm<superscript>−1</superscript> in combination with the Tikhonov–Phillips regularization. It is shown that FTIR measurements make it possible to reliably detect high levels of tropospheric NO<subscript>2</subscript> at the SPbSU monitoring station. Our results can be used at the FTIR stations of the NDACC network for significant expansion of the geography of tropospheric NO<subscript>2</subscript> monitoring. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10248560
- Volume :
- 36
- Database :
- Complementary Index
- Journal :
- Atmospheric & Oceanic Optics
- Publication Type :
- Academic Journal
- Accession number :
- 176222070
- Full Text :
- https://doi.org/10.1134/S1024856024010081