Engel Anja aengel@geomar.de 0000-0002-1042-1955 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 2026 Dissolved organic matter from water samples during SONNE cruise SO288 dataset https://doi.pangaea.de/10.1594/PANGAEA.990502 2026-03-24T15:19:56 https://doi.org/10.1594/PANGAEA.987839 Sea water samples were collected during the RV SONNE cruise SO288 (15 January 2022–15 February 2022) within the framework of the HOMER project in the Southeast Pacific off Chile . At three stations, water samples were collected at 12 depths throughout the water column using standard 12 L Niskin-type bottles attached to a CTD rosette and represented the different pelagic zones: 25 m and 100 m (epipelagic), 250, 500, 750 and 1,000 m (mesopelagic), 1,500- 3800 m (bathypelagic; here different depths were sampled due to differences in bathymetry), and 4,000, 4,500 and 5,000 m (abyssopelagic). Temperature, oxygen, and pressure were measured using a Sea-Bird SBE 9-plus CTD system (Sea-Bird Electronics, Inc.), and chlorophyll a (Chl a) concentrations were detected using a WETStar fluorometer (WET Labs). -71.73552999999998 -70.83037000000002 -21.05725 -20.77627 -71.21434333333337 -20.87718 2022-01-26T03:09:58 2022-02-03T23:40:01 25.0 5000.0 SO288_2-2 -20.79802 -70.83037 -2869.19 2022-01-26T03:09:58 South Pacific Ocean SO288 COMBO https://doi.org/10.3289/CR_SO288 Kopp, Heidrun 2022-01-15 2022-02-15 Guayaquil, Ecuador Valparaíso, Chile 20220002 https://download.pangaea.de/reference/113171/attachments/SO288_nav.jpg doi:10.1594/PANGAEA.944960 Sonne_2 https://uol.de/icbm/forschungsplattformen-schiffe/sonne DBBE 9633927 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers SO288_12-1 -21.05725 -71.73553 -4074.82 2022-01-31T13:36:51 South Pacific Ocean SO288 COMBO https://doi.org/10.3289/CR_SO288 Kopp, Heidrun 2022-01-15 2022-02-15 Guayaquil, Ecuador Valparaíso, Chile 20220002 https://download.pangaea.de/reference/113171/attachments/SO288_nav.jpg doi:10.1594/PANGAEA.944960 Sonne_2 https://uol.de/icbm/forschungsplattformen-schiffe/sonne DBBE 9633927 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers SO288_28-1 -20.77627 -71.07713 -5337.82 2022-02-03T23:40:01 South Pacific Ocean SO288 COMBO https://doi.org/10.3289/CR_SO288 Kopp, Heidrun 2022-01-15 2022-02-15 Guayaquil, Ecuador Valparaíso, Chile 20220002 https://download.pangaea.de/reference/113171/attachments/SO288_nav.jpg doi:10.1594/PANGAEA.944960 Sonne_2 https://uol.de/icbm/forschungsplattformen-schiffe/sonne DBBE 9633927 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers 1880 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ PCA1 loadings used for DI calculation AsX 0,183566944 GlX 0,180226586 Ser 0,123932867 Gly -0,941383783 Thr 0,07770909 Arg 0,028766701 Ala 0,125898931 GABA 0,006081105 Tyr 0,035912614 Val 0,045953695 Iso 0,044019614 Phe 0,034636789 Leu 0,054462237 Event label Event Engel Anja aengel@geomar.de 0000-0002-1042-1955 Event Sample code/label Sample label Engel Anja aengel@geomar.de 0000-0002-1042-1955 Sample label Sample code/label Sample label Engel Anja aengel@geomar.de 0000-0002-1042-1955 Sample label Identification ID Engel Anja aengel@geomar.de 0000-0002-1042-1955 Working area ID (Working area) DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Engel Anja aengel@geomar.de 0000-0002-1042-1955 Depth water [m] Zone Zone Engel Anja aengel@geomar.de 0000-0002-1042-1955 pelagic_zone Zone (pelagic_zone) Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Engel Anja aengel@geomar.de 0000-0002-1042-1955 Temp [°C] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 Engel Anja aengel@geomar.de 0000-0002-1042-1955 Sal Oxygen O2 mg/kg oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 Engel Anja aengel@geomar.de 0000-0002-1042-1955 O2 [mg/kg] Fluorescence Fluorescence arbitrary units fluorescence http://purl.obolibrary.org/obo/PATO_0000018 Engel Anja aengel@geomar.de 0000-0002-1042-1955 Fluo-AFL Fluorescence [arbitrary units] (Fluo-AFL) Turbidity Turbidity arbitrary units https://en.wikipedia.org/wiki/Turbidity Turbidity http://dbpedia.org/resource/Turbidity Engel Anja aengel@geomar.de 0000-0002-1042-1955 Turbidity [arbitrary units] Nitrate [NO3]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 [NO3]- [µmol/l] Silicate Si(OH)4 µmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 Si(OH)4 [µmol/l] Nitrite [NO2]- µmol/l nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 [NO2]- [µmol/l] Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 [PO4]3- [µmol/l] Nitrogen, organic, particulate PON µmol/l nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 organic particulate Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 PON [µmol/l] Carbon, organic, particulate POC µmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic particulate Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 POC [µmol/l] Carbon/Nitrogen ratio C/N mol/mol carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 ratio Engel Anja aengel@geomar.de 0000-0002-1042-1955 C/N [mol/mol] Carbon, organic, dissolved DOC µmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 DOC [µmol/l] Bacteria Bact #/ml Bacteria https://www.marinespecies.org/aphia.php?p=taxdetails&id=6 Engel Anja aengel@geomar.de 0000-0002-1042-1955 Bact [#/ml] Bacterial biomass production of carbon BP mg/m**3/day carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 Engel Anja aengel@geomar.de 0000-0002-1042-1955 µgC_L_d BP [mg/m**3/day] (µgC_L_d) Bacterial biomass production of carbon BP ng/l/h carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 Engel Anja aengel@geomar.de 0000-0002-1042-1955 pgC_cell_d BP [ng/l/h] (pgC_cell_d) Aspartic acid and Asparagine AsX nmol/l aspartic acid http://purl.obolibrary.org/obo/CHEBI_22660 asparagine http://purl.obolibrary.org/obo/CHEBI_22653 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA AsX [nmol/l] (NEAA) Glutamine and Glutamic acid GlX nmol/l glutamine http://purl.obolibrary.org/obo/CHEBI_28300 glutamic acid http://purl.obolibrary.org/obo/CHEBI_18237 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA GlX [nmol/l] (NEAA) Serine Ser nmol/l https://en.wikipedia.org/wiki/Serine serine http://purl.obolibrary.org/obo/CHEBI_17822 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA Ser [nmol/l] (NEAA) Glycine Gly nmol/l https://en.wikipedia.org/wiki/Glycine glycine http://purl.obolibrary.org/obo/CHEBI_15428 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA Gly [nmol/l] (NEAA) Alanine Ala nmol/l https://en.wikipedia.org/wiki/Alanine alanine http://purl.obolibrary.org/obo/CHEBI_16449 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA Ala [nmol/l] (NEAA) gamma-Aminobutyric acid g-ABA nmol/l gamma-aminobutyric acid http://purl.obolibrary.org/obo/CHEBI_16865 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA g-ABA [nmol/l] (NEAA) Tyrosine Tyr nmol/l tyrosine http://purl.obolibrary.org/obo/CHEBI_18186 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA Tyr [nmol/l] (NEAA) Arginine Arg nmol/l https://en.wikipedia.org/wiki/Arginine arginine http://purl.obolibrary.org/obo/CHEBI_29016 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 NEAA Arg [nmol/l] (NEAA) Threonine Thr nmol/l threonine http://purl.obolibrary.org/obo/CHEBI_26986 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 EAA Thr [nmol/l] (EAA) Valine Val nmol/l valine http://purl.obolibrary.org/obo/CHEBI_27266 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 EAA Val [nmol/l] (EAA) Isoleucine Ile nmol/l isoleucine http://purl.obolibrary.org/obo/CHEBI_24898 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 EAA Ile [nmol/l] (EAA) Phenylalanine Phe nmol/l phenylalanine http://purl.obolibrary.org/obo/CHEBI_28044 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 EAA Phe [nmol/l] (EAA) Leucine Leu nmol/l leucine http://purl.obolibrary.org/obo/CHEBI_25017 Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 EAA Leu [nmol/l] (EAA) Amino acids AA nmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 AA SUM AA [nmol/l] (AA SUM) Amino acids AA µmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 AA SUM C AA [µmol/l] (AA SUM C) Amino acids AA µmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 AA SUM N AA [µmol/l] (AA SUM N) Amino acids AA nmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 AA SUM EAA AA [nmol/l] (AA SUM EAA) Amino acids AA nmol/l Molar Concentration Engel Anja aengel@geomar.de 0000-0002-1042-1955 AA SUM NEAA AA [nmol/l] (AA SUM NEAA) Amino acids, dissolved hydrolyzable DHAA % Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 % dHAA of DOC DHAA [%] (% dHAA of DOC) Aspartic acid Asp % https://en.wikipedia.org/wiki/Aspartic_acid aspartic acid http://purl.obolibrary.org/obo/CHEBI_22660 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 AsX_mol% Asp [%] (AsX_mol%) Glutamine and Glutamic acid Gln + Glu % glutamine http://purl.obolibrary.org/obo/CHEBI_28300 glutamic acid http://purl.obolibrary.org/obo/CHEBI_18237 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Gln + Glu [%] Serine Ser % https://en.wikipedia.org/wiki/Serine serine http://purl.obolibrary.org/obo/CHEBI_17822 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Ser [%] Glycine Gly % https://en.wikipedia.org/wiki/Glycine glycine http://purl.obolibrary.org/obo/CHEBI_15428 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Gly [%] Threonine Thr % https://en.wikipedia.org/wiki/Threonine threonine http://purl.obolibrary.org/obo/CHEBI_26986 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Thr [%] Arginine Arg % https://en.wikipedia.org/wiki/Arginine arginine http://purl.obolibrary.org/obo/CHEBI_29016 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Arg [%] Alanine Ala % https://en.wikipedia.org/wiki/Alanine alanine http://purl.obolibrary.org/obo/CHEBI_16449 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Ala [%] gamma-Aminobutyric acid g-ABA % https://en.wikipedia.org/wiki/Gamma-aminobutyric_acid gamma-aminobutyric acid http://purl.obolibrary.org/obo/CHEBI_16865 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 g-ABA [%] Tyrosine Tyr % https://en.wikipedia.org/wiki/Tyrosine tyrosine http://purl.obolibrary.org/obo/CHEBI_18186 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Tyr [%] Valine Val % https://en.wikipedia.org/wiki/Valine valine http://purl.obolibrary.org/obo/CHEBI_27266 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Val [%] Isoleucine Ile % https://en.wikipedia.org/wiki/Isoleucine isoleucine http://purl.obolibrary.org/obo/CHEBI_24898 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Ile [%] Phenylalanine Phe % https://en.wikipedia.org/wiki/Phenylalanine phenylalanine http://purl.obolibrary.org/obo/CHEBI_28044 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Phe [%] Leucine Leu % https://en.wikipedia.org/wiki/Leucine leucine http://purl.obolibrary.org/obo/CHEBI_25017 Dimensionless Ratio ψ Engel Anja aengel@geomar.de 0000-0002-1042-1955 Leu [%] Degradation index DI Engel Anja aengel@geomar.de 0000-0002-1042-1955 DI CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels geomar author31027 basis5064 campaign48075 curlevel30 event2998828 event2998846 event2998865 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst20147 license21 method10923 param101328 param16137 param166552 param171883 param18664 param18846 param190218 param190219 param192831 param20165 param20167 param20169 param20173 param20175 param20176 param20180 param20181 param20183 param20184 param20185 param23791 param26958 param28739 param2955 param4496 param4498 param4502 param4505 param4507 param4508 param4512 param4513 param4515 param4517 param4518 param533710 param536179 param7056 param716 param717 param755 param756 param757 param758 param766 param790 param83477 param91528 param97585 pi31027 term1061861 term1073131 term1073482 term1073483 term1073484 term1073493 term1073524 term1073559 term1073587 term1073630 term1073691 term1073698 term1073722 term1073750 term1073752 term1073755 term1073759 term1073761 term1073768 term1074077 term1115539 term21005 term2299371 term242 term2606205 term2608178 term2663825 term2698012 term38338 term38477 term38494 term38548 term43794 term43863 term43972 term43980 term44030 term44419 term67626 term68026