Hyperspectral absorption coefficient measurements during the cruise HE527 with RV HEINCKE


This dataset was collected during the cruise HE527 (19.03.2019 - 31.03.2019) with RV HEINCKE from Bremerhaven, Germany to Bremerhaven, Germany. It contains absorption coefficients [m-1] from water constituents in a range of 400 to 710 nm (2 nm resolution). In total, 34 stations have been sampled. Where the water column was mixed, one sample was taken from approx. 5 m. In case of stratified water or chlorophyll-a maxima present, additional samples from greater depths were taken. The water samples were fractionated by filtration to investigate the absorption with respect to size classes. Thus, data from unfiltered samples are available as well as data from water that passed a 20 µm, 2 µm, and 0.2 µm filter, respectively (denoted as a_tot, a_20µm, a_2µm, and a_cdom). The absorption coefficient measurements were performed with a point-source integrating-cavity absorption meter (PSICAM) with a sample volume of approx. 400 ml. The specifications of the PSICAM, relevant publications, information regarding the measurements, calibration of the instrument, and data correction are provided in a separate document. Raw data are available on request from the authors. Supplementary Information attached.Chief Scientist of HE527: Dr. Thomas Badewien, Institute for Chemistry and Biology of the Marine Environment (ICBM).Work related to Coastal ocean darkening - Light availability in the past and future marine environment (COD).

Data binned at 2 nm intervals

DOI https://doi.org/10.1594/PANGAEA.928543
Related Identifier https://store.pangaea.de/Publications/VossD-etal_2021/Supplementary_Information_HE527.pdf
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.928543
Creator Wollschläger, Jochen ORCID logo; Tietjen, Beke; Voß, Daniela; Zielinski, Oliver ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference Ministry for Science and Culture of Lower Saxony https://doi.org/10.13039/501100010570 Crossref Funder ID VWZN3175 Coastal ocean darkening – Light availability in the past and future marine environment
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 24327 data points
Discipline Earth System Research
Spatial Coverage (4.483W, 53.549S, 9.000E, 55.399N)
Temporal Coverage Begin 2019-03-19T11:47:00Z
Temporal Coverage End 2019-03-30T06:55:00Z