Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy
The Gas Absorption Spectrometer Correlating Optical Difference—New Generation 4 (GASCOD/NG4) is a multi-axis differential optical absorption spectroscopy (MAX-DOAS) instrument which measures diffuse solar spectra at the Environmental-Climate Observatory (ECO) of the Italian research institute CNR-IS...
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MDPI AG
2022-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/21/5541 |
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| author | Paolo Pettinari Antonio Donateo Enzo Papandrea Daniele Bortoli Gianluca Pappaccogli Elisa Castelli |
| author_facet | Paolo Pettinari Antonio Donateo Enzo Papandrea Daniele Bortoli Gianluca Pappaccogli Elisa Castelli |
| author_sort | Paolo Pettinari |
| collection | DOAJ |
| description | The Gas Absorption Spectrometer Correlating Optical Difference—New Generation 4 (GASCOD/NG4) is a multi-axis differential optical absorption spectroscopy (MAX-DOAS) instrument which measures diffuse solar spectra at the Environmental-Climate Observatory (ECO) of the Italian research institute CNR-ISAC, near Lecce. The high-resolution spectra measured in zenith-sky configuration were used to retrieve the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> vertical column densities (VCDs) from March 2017 to November 2019. These good-quality data, proven by the comparison with the Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI) satellite measurements, were used to characterize the ECO site by exploiting the sinergy with in situ NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> concentrations and meteorological data. Although stratospheric processes seem to be the main forces behind the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> VCDs seasonal trends, diurnal variabilities revealed the presence of a tropospheric signal in the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> VCDs, which had significant lower values during Sundays. Comparison with wind data acquired at the ECO observatory, at 20 m above the ground, revealed how NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> VCDs are influenced by both tropospheric local production and transport from the nearby city of Lecce. On the other hand, no significant tropospheric signal was contained in the O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> VCDs. |
| first_indexed | 2024-03-09T18:41:36Z |
| format | Article |
| id | doaj.art-f6ec69863a714b95a11dcce22de4b350 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T18:41:36Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-f6ec69863a714b95a11dcce22de4b3502023-11-24T06:40:41ZengMDPI AGRemote Sensing2072-42922022-11-011421554110.3390/rs14215541Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South ItalyPaolo Pettinari0Antonio Donateo1Enzo Papandrea2Daniele Bortoli3Gianluca Pappaccogli4Elisa Castelli5Dipartimento di Fisica a Astronomia, Universitá di Bologna, viale Berti Pichat 6/2, 40127 Bologna, ItalyNational Research Council (CNR), Institute of Atmospheric Sciences and Climate (ISAC), Str. Prov. Lecce-Monteroni, km 1.2, 73100 Lecce, ItalyNational Research Council (CNR), Institute of Atmospheric Sciences and Climate (ISAC), via Piero Gobetti 101, 40129 Bologna, ItalyNational Research Council (CNR), Institute of Atmospheric Sciences and Climate (ISAC), via Piero Gobetti 101, 40129 Bologna, ItalyNational Research Council (CNR), Institute of Atmospheric Sciences and Climate (ISAC), Str. Prov. Lecce-Monteroni, km 1.2, 73100 Lecce, ItalyNational Research Council (CNR), Institute of Atmospheric Sciences and Climate (ISAC), via Piero Gobetti 101, 40129 Bologna, ItalyThe Gas Absorption Spectrometer Correlating Optical Difference—New Generation 4 (GASCOD/NG4) is a multi-axis differential optical absorption spectroscopy (MAX-DOAS) instrument which measures diffuse solar spectra at the Environmental-Climate Observatory (ECO) of the Italian research institute CNR-ISAC, near Lecce. The high-resolution spectra measured in zenith-sky configuration were used to retrieve the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> vertical column densities (VCDs) from March 2017 to November 2019. These good-quality data, proven by the comparison with the Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI) satellite measurements, were used to characterize the ECO site by exploiting the sinergy with in situ NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> concentrations and meteorological data. Although stratospheric processes seem to be the main forces behind the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> VCDs seasonal trends, diurnal variabilities revealed the presence of a tropospheric signal in the NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> VCDs, which had significant lower values during Sundays. Comparison with wind data acquired at the ECO observatory, at 20 m above the ground, revealed how NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> VCDs are influenced by both tropospheric local production and transport from the nearby city of Lecce. On the other hand, no significant tropospheric signal was contained in the O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> VCDs.https://www.mdpi.com/2072-4292/14/21/5541NO<sub>2</sub>O<sub>3</sub>DOASLecce |
| spellingShingle | Paolo Pettinari Antonio Donateo Enzo Papandrea Daniele Bortoli Gianluca Pappaccogli Elisa Castelli Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy Remote Sensing NO<sub>2</sub> O<sub>3</sub> DOAS Lecce |
| title | Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy |
| title_full | Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy |
| title_fullStr | Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy |
| title_full_unstemmed | Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy |
| title_short | Analysis of NO<sub>2</sub> and O<sub>3</sub> Total Columns from DOAS Zenith-Sky Measurements in South Italy |
| title_sort | analysis of no sub 2 sub and o sub 3 sub total columns from doas zenith sky measurements in south italy |
| topic | NO<sub>2</sub> O<sub>3</sub> DOAS Lecce |
| url | https://www.mdpi.com/2072-4292/14/21/5541 |
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