Raw values of boundary layer NO2 measurements 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 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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.900917
Related Identifier https://doi.org/10.1594/PANGAEA.900919
Related Identifier https://doi.org/10.11588/HEIDOK.00026489
Related Identifier 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.900917
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 Dataset
Format text/tab-separated-values
Size 1171530 data points
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 2018-08-10T01:24:36Z