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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2023
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| Accesso online: | https://doi.org/10.1594/PANGAEA.900917 |
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| _version_ | 1867171282495209472 |
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| author | Nasse, Jan-Marcus Frieß, Udo Schaefer, Thomas Jurányi, Zsófia Hoffmann, Helene Weller, Rolf |
| author_facet | Nasse, Jan-Marcus Frieß, Udo Schaefer, Thomas Jurányi, Zsófia Hoffmann, Helene Weller, Rolf |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | From January 2016 until August 2018, an automated Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS) instrument was operated at the German research station Neumayer III (NMIII) in coastal Antarctica to measure trace gas mixing ratios in the boundary layer close to the ground (average altitude above the snow surface: 4m). Two different atmospheric light paths with total lengths of 3100 m and 5900m were used depending on visibility. The DOAS evaluation of NO2 was performed between 352.5 and 386.5 nm as well as in a second spectral window (for subsequent measurements in two different instrumental setups). Here a fit between 424.3 and 451.3 nm was used for data until February 15th, 2017 when another grating was used. After February 15th, 2017, the evaluation was performed between 411 and 438 m. Fits with residual optical density RMS (root mean square) values larger than 3.5e-4 and 5.0e-4 (later 2.8e-4) respectively were discarded. The resulting mean residual RMS are 2.2e-4 and 3.2e-4 (1.8e-4 later) respectively. The mean detection limits of the two evaluations are 186 pmol/mol and 120 (153 later) pmol/mol. The data sets include the observations below the respective detection limit scattered around 0, which due to the spectral analysis with the DOAS approach can include negative values. Significant data points can be selected using the separately provided detection limits (3-sigma criterion - recommended). Alternatively, the total errors can be used. The mixing ratios provided here were calculated using meteorological data from Neumayer III station already published on PANGAEA. A list of data sets is included in the "Related to" section of the bibliography this data set is part of. The spectral raw data of the measurements is stored on the measurement data server of the Institute of Environmental Physics, University of Heidelberg. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_900917 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Raw values of boundary layer NO2 measurements at Neumayer III station, Antarctica from January 2016 to August 2018 Nasse, Jan-Marcus Frieß, Udo Schaefer, Thomas Jurányi, Zsófia Hoffmann, Helene Weller, Rolf Air chemistry observatory; DATE/TIME; Date/time end; Date/time start; Detection level; Dronning Maud Land, Antarctica; Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS); Method comment; Neumayer_based; Neumayer_SPUSO; NEUMAYER III; Nitrogen dioxide; Nitrogen dioxide, error; Nitrogen dioxide mixing ratio; Nitrogen dioxide mixing ratio, error; SPUSO; Total atmospheric light path From January 2016 until August 2018, an automated Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS) instrument was operated at the German research station Neumayer III (NMIII) in coastal Antarctica to measure trace gas mixing ratios in the boundary layer close to the ground (average altitude above the snow surface: 4m). Two different atmospheric light paths with total lengths of 3100 m and 5900m were used depending on visibility. The DOAS evaluation of NO2 was performed between 352.5 and 386.5 nm as well as in a second spectral window (for subsequent measurements in two different instrumental setups). Here a fit between 424.3 and 451.3 nm was used for data until February 15th, 2017 when another grating was used. After February 15th, 2017, the evaluation was performed between 411 and 438 m. Fits with residual optical density RMS (root mean square) values larger than 3.5e-4 and 5.0e-4 (later 2.8e-4) respectively were discarded. The resulting mean residual RMS are 2.2e-4 and 3.2e-4 (1.8e-4 later) respectively. The mean detection limits of the two evaluations are 186 pmol/mol and 120 (153 later) pmol/mol. The data sets include the observations below the respective detection limit scattered around 0, which due to the spectral analysis with the DOAS approach can include negative values. Significant data points can be selected using the separately provided detection limits (3-sigma criterion - recommended). Alternatively, the total errors can be used. The mixing ratios provided here were calculated using meteorological data from Neumayer III station already published on PANGAEA. A list of data sets is included in the "Related to" section of the bibliography this data set is part of. The spectral raw data of the measurements is stored on the measurement data server of the Institute of Environmental Physics, University of Heidelberg. |
| title | Raw values of boundary layer NO2 measurements at Neumayer III station, Antarctica from January 2016 to August 2018 |
| topic | Air chemistry observatory; DATE/TIME; Date/time end; Date/time start; Detection level; Dronning Maud Land, Antarctica; Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS); Method comment; Neumayer_based; Neumayer_SPUSO; NEUMAYER III; Nitrogen dioxide; Nitrogen dioxide, error; Nitrogen dioxide mixing ratio; Nitrogen dioxide mixing ratio, error; SPUSO; Total atmospheric light path |
| url | https://doi.org/10.1594/PANGAEA.900917 |