/* DATA DESCRIPTION:
Citation:	Dale, Andy W; Lomnitz, Ulrike (2025): Particulate geochemistry of sediment core AL561_15-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.987334
Abstract:	The AL561 cruise was conducted in the framework of the project APOC ("Anthropogenic impacts on Particulate Organic Carbon cycling in the North Sea"). This collaborative project between GEOMAR, AWI, HEREON, UHH, and BUND is to understand how particulate organic carbon (POC) cycling contributes to carbon sequestration in the North Sea and how this ecosystem service is compromised and interlinked with global change and a range of human pressures include fisheries (pelagic fisheries, bottom trawling), resource extraction (sand mining), sediment management (dredging and disposal of dredged sediments) and eutrophication. The main aim of the sampling activity during AL561 cruise was to recover undisturbed sediment from high accumulation sites in the Skagerrak/Kattegat and to subsample sediment/porewater at high resolution in order to investigate sedimentation transport processes, origin of sediment/POC and mineralization processes over the last 100- 200 years. Moreover, the actual processes of sedimentation and POC degradation in the water column and benthic layer will be addressed by sampling with CTD and Lander devices. In total 9 hydroacoustic surveys (59 profiles), 4 Gravity Corer, 7 Multicorer, 3 BIGO Lander and 3 CTD stations were successfully conducted during the AL561 cruise.
Keyword(s):	Geochemistry; MUC; North Sea; porewater; Porewater chemistry; Sediment
Related to:	Spiegel, Timo; Dale, Andrew W; Lenz, Nina; Schmidt, Mark; Moros, Matthias; Lindhorst, Sebastian; Wolschke, Hendrik; Müller, Daniel; Butzin, Martin; Fuhr, Michael; Kalapurakkal, Habeeb Thanveer; Kasten, Sabine; Wallmann, Klaus (2025): Mass accumulation rates decreased in the Skagerrak basin over the last 100 years. Continental Shelf Research, 286, 105411, https://doi.org/10.1016/j.csr.2025.105411
	Spiegel, Timo; Dale, Andrew W; Lenz, Nina; Schmidt, Mark; Sommer, Stefan; Becker, Kevin W; Elling, Felix J; Porz, Lucas; Daewel, Ute; Fuhr, Michael; Kalapurakkal, Habeeb Thanveer; Wallmann, Klaus (2025): Benthic POC cycling in the Skagerrak basin: The role of lateral POC input. Continental Shelf Research, 293, 105536, https://doi.org/10.1016/j.csr.2025.105536
	Spiegel, Timo; Dale, Andrew W; Lenz, Nina; Schmidt, Mark; Sommer, Stefan; Kalapurakkal, Habeeb Thanveer; Przibilla, Anna; Lindhorst, Sebastian; Wallmann, Klaus (2023): Biogenic silica cycling in the Skagerrak. Frontiers in Marine Science, 10, 1141448, https://doi.org/10.3389/fmars.2023.1141448
	Spiegel, Timo; Diesing, Markus; Dale, Andrew W; Lenz, Nina; Schmidt, Mark; Sommer, Stefan; Böttner, Christoph; Fuhr, Michael; Kalapurakkal, Habeeb Thanveer; Schulze, Cosima; Wallmann, Klaus (2024): Modelling mass accumulation rates and 210Pb rain rates in the Skagerrak: lateral sediment transport dominates the sediment input. Frontiers in Marine Science, 11, 1331102, https://doi.org/10.3389/fmars.2024.1331102
Project(s):	Anthropogenic impacts on particulate organic carbon cycling in the North Sea (APOC) (URI: https://www.apoc-project.de/en/)
Coverage:	LATITUDE: 58.181760 * LONGITUDE: 9.792950
	DATE/TIME START: 2021-08-06T09:07:17 * DATE/TIME END: 2021-08-06T09:07:17
	MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.135 m
Event(s):	AL561_15-1 (ALK561_15MUC4) * LATITUDE: 58.181760 * LONGITUDE: 9.792950 * DATE/TIME: 2021-08-06T09:07:17 * ELEVATION: -492.0 m * LOCATION: Skagerrak (URI: http://en.wikipedia.org/wiki/Skagerrak) * CAMPAIGN: AL561 (URI: https://doi.org/10.3289/CR_AL561) * BASIS: Alkor (1990) (URI: https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm) * METHOD/DEVICE: MultiCorer (MUC)
Parameter(s):	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Dale, Andy W (adale@geomar.de)
	Replicate (Repl) * PI: Dale, Andy W (adale@geomar.de)
	Water content, wet mass [%] (Water wm) * PI: Dale, Andy W (adale@geomar.de)
	Sample code/label (Sample label) * PI: Dale, Andy W (adale@geomar.de)
	Porosity, volume (Poros vol) * PI: Dale, Andy W (adale@geomar.de)
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Status:	Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels)
Size:	48 data points
*/
Depth sed [m]	Repl	Water wm [%]	Sample label	Poros vol
0.005	A/Andy	79.51863	9409	0.9046528
0.015	A/Andy	74.31048	9410	0.8760690
0.025	A/Andy	69.66949	9411	0.8487923
0.035	A/Andy	65.83152	9412	0.8248193
0.045	A/Andy	64.69039	9413	0.8174266
0.055	A/Andy	61.56488	9414	0.7965178
0.065	A/Andy	63.18111	9415	0.8074532
0.075	A/Andy	61.98406	9416	0.7993798
0.085	A/Andy	62.71283	9417	0.8043123
0.095	A/Andy	60.94547	9418	0.7922550
0.115	A/Andy	60.42634	9419	0.7886509
0.135	A/Andy	59.77122	9420	0.7840613