Long-Path DOAS measurements of boundary layer trace gas mixing ratios at Neumayer III station, Antarctica from January 2016 to August 2018

DOI

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 available and used depending on the spectral window and visibility.Detectable species were bromine monoxide (BrO), bromine dioxide (OBrO), molecular bromine (Br2), chlorine monoxide (ClO), chlorine dioxide (OClO), iodine monoxide (IO), iodine dioxide (OIO), molecular iodine (I2), sulphur dioxide (SO2), nitrogen dioxide (NO2), nitrous acid (HONO), nitrate (NO3), and ozone (O3). The evaluated data was filtered based on RMS (root mean square) thresholds of optical density residuals of the DOAS fits (see individual data sets for respective values). Detection limits based on a 3-sigma criterion were used and are provided in the data sets for all detectable species. For BrO, ClO, OClO, IO, SO2, and NO2, observations above the respective detection limit were made. For all absorbers the retrieved mixing ratios/concentrations with respective total errors (corresponding to 1-sigma) are provided. 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. Since total errors and hence detection limits are determined from spectral information, for absorbers not observed at significant levels (OBrO, Br2, OIO, I2, HONO, and NO3), the respective detection limits can serve as an upper limit for an atmospheric presence.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. The spectral raw data of the measurements is stored on the measurement data server of the Institute of Environmental Physics, University of Heidelberg.--Technical details and performance of employed LP-DOAS instrument: Nasse et al. (2019, doi:10.5194/amt-2019-69)Detailed description of measurements and evaluation: Nasse, Jan-Marcus (2019): Halogens in the coastal boundary layer of Antarctica (PhD Thesis). University of Heidelberg

To calculate the mixing ratios provided in the data set, the meteorological data sets given in the "Related to" sections were used.

Identifier
DOI https://doi.org/10.1594/PANGAEA.900919
Related Identifier References https://doi.org/10.1594/PANGAEA.858916
Related Identifier References https://doi.org/10.1594/PANGAEA.874574
Related Identifier References https://doi.org/10.1594/PANGAEA.874575
Related Identifier References https://doi.org/10.1594/PANGAEA.874576
Related Identifier References https://doi.org/10.1594/PANGAEA.874577
Related Identifier References https://doi.org/10.1594/PANGAEA.874578
Related Identifier References https://doi.org/10.1594/PANGAEA.874579
Related Identifier References https://doi.org/10.1594/PANGAEA.874580
Related Identifier References https://doi.org/10.1594/PANGAEA.874581
Related Identifier References https://doi.org/10.1594/PANGAEA.874582
Related Identifier References https://doi.org/10.1594/PANGAEA.874583
Related Identifier References https://doi.org/10.1594/PANGAEA.874584
Related Identifier References https://doi.org/10.1594/PANGAEA.874585
Related Identifier References https://doi.org/10.1594/PANGAEA.900769
Related Identifier References https://doi.org/10.1594/PANGAEA.900770
Related Identifier References https://doi.org/10.1594/PANGAEA.900772
Related Identifier References https://doi.org/10.1594/PANGAEA.900773
Related Identifier References https://doi.org/10.1594/PANGAEA.900774
Related Identifier References https://doi.org/10.1594/PANGAEA.900775
Related Identifier References https://doi.org/10.1594/PANGAEA.900776
Related Identifier References https://doi.org/10.1594/PANGAEA.887742
Related Identifier References https://doi.org/10.1594/PANGAEA.887743
Related Identifier References https://doi.org/10.1594/PANGAEA.887744
Related Identifier References https://doi.org/10.1594/PANGAEA.887745
Related Identifier References https://doi.org/10.1594/PANGAEA.887746
Related Identifier References https://doi.org/10.1594/PANGAEA.887747
Related Identifier References https://doi.org/10.1594/PANGAEA.887748
Related Identifier References https://doi.org/10.1594/PANGAEA.887749
Related Identifier References https://doi.org/10.1594/PANGAEA.887750
Related Identifier References https://doi.org/10.1594/PANGAEA.887751
Related Identifier References https://doi.org/10.1594/PANGAEA.887752
Related Identifier References https://doi.org/10.1594/PANGAEA.887753
Related Identifier IsDocumentedBy https://doi.org/10.11588/HEIDOK.00026489
Related Identifier IsDocumentedBy https://doi.org/10.5194/amt-12-4149-2019
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.900919
Provenance
Creator Nasse, Jan-Marcus ORCID logo; Frieß, Udo ORCID logo; Schaefer, Thomas; Jurányi, Zsófia; Hoffmann, Helene ORCID logo; Weller, Rolf ORCID logo
Publisher PANGAEA
Contributor Institut für Umweltphysik, Universität Heidelberg
Publication Year 2023
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Publication Series of Datasets; Collection
Format application/zip
Size 13 datasets
Discipline Chemistry; Natural Sciences
Spatial Coverage (-8.250 LON, -70.650 LAT); Dronning Maud Land, Antarctica
Temporal Coverage Begin 2016-01-18T11:23:13Z
Temporal Coverage End 2018-08-10T02:01:58Z