Ambient concentrations of aerosol precursor vapor concentrations (sulfuric acid, methanesulfonic acid, and iodic acid) in 5-minute resolution measured by a nitrate chemical ionization mass spectrometer ...

• Main Authors: Boyer, Matthew, Quéléver, Lauriane, Beck, Ivo, Laurila, Tiia, Sarnela, Nina, Schmale, Julia, Jokinen, Tuija
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: aerosol precursor vapors; central Arctic Ocean; MOSAiC20192020; new particle formation; Polarstern; DATE/TIME; LATITUDE; LONGITUDE; Sulfuric acid; Methanesulfonic acid; Iodic acid; Flag, pollution; Flag, detection limit, sulfuric acid; Flag, detection limit, methanesulfonic acid; Flag, detection limit, iodic acid; Mass spectrometer; Nitrate chemical ionization mass spectrometer; Pollution detection algorithm; PS122/1; PS122/2; PS122/3; PS122/4; PS122/5; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Arctic; Arctic Ocean; Jokinen
• Online Access: https://dx.doi.org/10.1594/pangaea.963321; https://doi.pangaea.de/10.1594/PANGAEA.963321

This dataset contains ambient concentrations of aerosol precursor vapors measured in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. The timeseries includes a full year of sulfuric acid (SA), methanesulfonic acid (MSA), and iodic acid (IA) concentrations retrieved at a time resolution of 5 minutes between October 2019 and September 2020. The data were collected using a nitrate chemical ionization mass spectrometer (NO3-CIMS) as described by Jokinen et al. (2012). The instrument was located in the Swiss container, which was placed on the starboard side of Polarstern's bow on the D-deck during the campaign (Shupe et al., 2022). The concentration retrievals were obtained by integrating peaks from the high-resolution mass spectra for each compound of interest (either as a deprotonated ion or as its corresponding cluster with nitrate), normalizing the result with the sum of charger ions (NO3-, HNO3NO3-, (HNO3)2NO3-), and multiplying by the ...