Optical properties of porewater dissolved organic matter and bulk characteristics of bottom waters and sediments of the Baltic Sea


Pore water dissolved organic matter fluorescence (FDOM) parameters were collected by Rhizon samplers from the water 2 cm above the sediment and the top 10 cm of the sediment cores, which were recovered using GeMax sampler, parameters (pH, Salinity, Oxygen) measured using deepening probes in the bottom water 2cm above the sediment surface. Porosity and loss on ignition index were evaluated via slicing the top 10 cm of the sediment cores recovered by GeMax sediment corer at 2 cm intervals. These samples were collected between 2020 and 2021 during cruises onboard RV Oceania (Institute of Oceanology of the Polish Academy of Sciences), which took place in spring, autumn, and winter, to the Central and Southern Baltic Sea, i.e., Eastern Gotland Basin, Bornholm Basin, and Gdansk Basin. The pore water fluorescence was collected to characterize dissolved organic matter quality within sediments. Loss on ignition index was used to evaluate the organic matter content within sediments. Bottom water parameters and porosity were collected for auxiliary station characterization.

DOI https://doi.pangaea.de/10.1594/PANGAEA.967075
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.967075
Creator Loginova, Alexandra ORCID logo; Kowalczuk, Piotr
Publisher PANGAEA
Publication Year 2024
Funding Reference EEA and Norway Grants https://doi.org/10.13039/501100007048 Crossref Funder ID 2020/37/K/ST10/03018 https://eeagrants.org/archive/2014-2021/projects/PL-Basic%20Research-0052 Microbial Dissolved Organic Matter utilisation at the near-sediment waters in the Baltic Sea Deeps; National Science Center - Poland https://doi.org/10.13039/501100004281 Crossref Funder ID 2019/33/B/ST10/01232 https://projekty.ncn.gov.pl/index.php?projekt_id=445962 Estimation of the diffusion coefficient of dissolved organic matter from sediments to overlying waters through relationships between its optical and chromatographic characteristics and dissolved iron in Baltic Sea deeps
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Resource Type Dataset
Format text/tab-separated-values
Size 1957 data points
Discipline Earth System Research
Spatial Coverage (15.299W, 54.440S, 20.050E, 57.334N); Baltic Sea
Temporal Coverage Begin 2020-03-06T07:03:00Z
Temporal Coverage End 2021-04-20T06:04:00Z