Evolution of Ozone above Togo during the 1979–2020 Period

The objective of this paper is to estimate the trend of the Total Ozone Column (TOC) over Togo. A Multi-Sensor Reanalysis-2 (MSR-2) of the TOC over the entire territory of Togo was used. A Multiple Linear Regression (MLR) method has been applied to retrieve the interannual contributions of different...

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Veröffentlicht in:	Atmosphere 2022-12, Vol.13 (12), p.2066
Hauptverfasser:	Ayassou, Koffi, Pazmiño, Andrea, Sabi, Kokou, Bazureau, Ariane, Godin-Beekmann, Sophie
Format:	Artikel
Sprache:	eng
Schlagworte:	Annual oscillation Chemistry Chlorine Datasets El Nino El Nino phenomena El Nino-Southern Oscillation event Environmental aspects Forecasts and trends Interannual variability MLR MSR-2 Ocean, Atmosphere Oscillations Ozone Proxies Quasi-biennial oscillation Rainy season Satellites Sciences of the Universe Semiannual oscillation Software Solar flux Solar oscillations Southern Oscillation Statistical analysis Stratosphere Time series Togo total column ozone Total organic carbon trend Trends Tropical environments Variability Variables Wet season
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Beschreibung
Zusammenfassung:	The objective of this paper is to estimate the trend of the Total Ozone Column (TOC) over Togo. A Multi-Sensor Reanalysis-2 (MSR-2) of the TOC over the entire territory of Togo was used. A Multiple Linear Regression (MLR) method has been applied to retrieve the interannual contributions of different forcings and the long-term variability. It was found that the Annual Oscillation (AnO), the Quasi Biennial Oscillation at 30 mb (QBO30), the Solar Flux (SF), and the El Niño–Southern Oscillation (ENSO) has a statistically significant influence on the interannual variability of the TOC. The strongest contribution (22 ± 1.4 DU) is allocated to the AnO while the weakest (
ISSN:	2073-4433 2073-4433
DOI:	10.3390/atmos13122066