Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Carstens Kristine Kristine.Carstens@awi.de Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 Wiltshire Karen Helen Karen.Wiltshire@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/karen-helen-wiltshire.html 0000-0002-7148-0529 Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 2026 Hydrochemistry at time series station Helgoland Roads, North Sea, in 2010 dataset https://doi.pangaea.de/10.1594/PANGAEA.995430 2026-06-15T08:36:48 https://doi.org/10.1594/PANGAEA.960375 In 2010, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity and dissolved inorganic nutrients were measured from a bucket sample in the laboratory. Krüger Karen Francis T Ben Chafee Meghan Amann Rudolf I 0000-0002-0846-7372 Glavina del Rio Tijana Teeling Hanno 2019 North Sea spring phytoplankton bloom metagenome assemblies and metagenome assembled genomes (MAGs) European Nucleotide Archive (ENA) insdc:PRJEB28156 Teeling Hanno Fuchs Bernhard M bfuchs@mpi-bremen.de http://www.mpi-bremen.de/Bernhard_Fuchs.html 0000-0001-9828-1290 Bennke Christin M Krüger Karen Chafee Meghan Kappelmann Lennart Reintjes Greta 0000-0001-7085-4683 Waldmann Jost Quast Christian 0000-0001-6409-2352 Glöckner Frank Oliver frank.oliver.gloeckner@awi.de 0000-0001-8528-9023 Lucas Judith Wichels Antje antje.wichels@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/antje-wichels.html 0000-0002-2060-1845 Gerdts Gunnar Gunnar.Gerdts@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/gunnar-gerdts.html 0000-0003-0872-3927 Wiltshire Karen Helen Karen.Wiltshire@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/karen-helen-wiltshire.html 0000-0002-7148-0529 Amann Rudolf I 0000-0002-0846-7372 2016 Recurring patterns in bacterioplankton dynamics during coastal spring algae blooms journal article eLife Sciences Publications Ltd. https://doi.org/10.7554/eLife.11888 1-29 Wiltshire Karen Helen Karen.Wiltshire@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/karen-helen-wiltshire.html 0000-0002-7148-0529 2011 Hydrochemistry at time series station Helgoland Roads, North Sea, in 2010 dataset Alfred Wegener Institute - Biological Institute Helgoland https://doi.org/10.1594/PANGAEA.756613 Grasshoff Klaus Ehrhardt M Kremling Klaus 1983 Methods of seawater analysis report Verlag Chemie, Weinheim https://doi.org/10.1002/iroh.19850700232 419 pp Thierry Carval 0000-0003-2700-4020 Keeley Robert Takatsuki Yasushi Yoshida Takashi yoshidaten@gmail.com Loch Stephen Schmid Claudia schmid@aoml.noaa.gov Goldsmith Roger Wong Annie McCreadie Rebecca Thresher Ann Tran Anh 2022 Argo user's manual other Ifremer https://doi.org/10.13155/29825 7.900000000000033 7.900000000000033 54.18800000000009 54.18800000000009 7.900000000000033 54.18800000000009 2010-01-04T09:30:00 2010-12-30T08:30:00 0.5 0.5 time series LTO_HelgolandRoads Helgoland Roads long-term observations https://www.awi.de/en/science/long-term-observations/biology/north-sea.html Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 HelgolandRoads2010 Kabeltonne 54.188 7.9 German Bight, North Sea -10.0 2010-01-01T00:00:00 2010-12-31T23:59:59 LTER_HelgolandRoads LTER_HelgolandRoads Kabeltonne, Long-term Ecological Research Helgoland Roads Kabeltonne, Long-term Ecological Research Helgoland Roads 1873-01-01T00:00:00 1873-01-01 Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Kirstein, Inga Vanessa Kirstein, Inga Vanessa Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Monitoring MON https://deims.org/1e96ef9b-0915-4661-849f-b3a72f5aa9b1 https://registry.o2a-data.de/items/8674 5528 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 Longitude 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 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 water sample taken with bucket at water surface Depth water [m] (water sample taken with bucke...) Location Location location Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 HR = Roads Location (HR = Roads) Depth of Secchi Disk z(SD) m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Secchi disk SD Secchi disk http://vocab.nerc.ac.uk/collection/L22/current/TOOL0430/ Turbidity meters Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 https://registry.o2a-data.de/items/10609 z(SD) [m] (https://registry.o2a-data.de/...) Quality flag, Secchi Disk QF SD Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF SD (QC flag meanings: 0:no QC, 1:...) Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Reversing thermometer https://en.wikipedia.org/wiki/Reversing_thermometer Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 Temp [°C] (Reversing thermometer) Quality flag, water temperature QF water temp quality http://purl.obolibrary.org/obo/PATO_0000001 Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing; Mercury thermometer QF water temp (QC flag meanings: 0:no QC, 1:...) Analyst Analyst Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 of Secchi Disk and temperature Analyst (of Secchi Disk and temperature) Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 Salinometer, Guildline Instruments, 8400B Autosal CTD & XBT Guildline 8400 bench salinometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL0454/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 https://registry.o2a-data.de/items/10605 Sal (https://registry.o2a-data.de/...) Quality flag, salinity QF sal salinity http://purl.obolibrary.org/obo/PATO_0085001 quality http://purl.obolibrary.org/obo/PATO_0000001 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF sal (QC flag meanings: 0:no QC, 1:...) Analyst Analyst Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 of salinity Analyst (of salinity) Silicate Si(OH)4 µmol/l Molar Concentration Seawater analysis after Grasshoff et al. (1983) https://doi.org/10.1002/iroh.19850700232 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 0.01 - 80 µmol/l Si(OH)4 [µmol/l] (0.01 - 80 µmol/l, Seawater an...) Quality flag, silicate QF Si(OH)4 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF Si(OH)4 (QC flag meanings: 0:no QC, 1:...) Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration Seawater analysis after Grasshoff et al. (1983) https://doi.org/10.1002/iroh.19850700232 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 0.01 - 3 µmol/l [PO4]3- [µmol/l] (0.01 - 3 µmol/l, Seawater ana...) Quality flag, phosphate QF [PO4]3- phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF [PO4]3- (QC flag meanings: 0:no QC, 1:...) Nitrite [NO2]- µmol/l nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration Seawater analysis after Grasshoff et al. (1983) https://doi.org/10.1002/iroh.19850700232 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 0.01 - 16 µmol/l [NO2]- [µmol/l] (0.01 - 16 µmol/l, Seawater an...) Quality flag, nitrite QF [NO2]- nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF [NO2]- (QC flag meanings: 0:no QC, 1:...) Nitrate [NO3]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Molar Concentration Calculated (difference of (Nitrate and Nitrite) and Nitrite) Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 [NO3]- [µmol/l] (Calculated (difference of (Ni...) Nitrate and Nitrite [NO3]- + [NO2]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration Seawater analysis after Grasshoff et al. (1983) https://doi.org/10.1002/iroh.19850700232 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 0.1 - 250 µmol/l [NO3]- + [NO2]- [µmol/l] (0.1 - 250 µmol/l, Seawater an...) Quality flag, nitrate and nitrite QF [NO3]- + [NO2]- nitrate http://purl.obolibrary.org/obo/CHEBI_17632 nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF [NO3]- + [NO2]- (QC flag meanings: 0:no QC, 1:...) Ammonium [NH4]+ µmol/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Molar Concentration Seawater analysis after Grasshoff et al. (1983) https://doi.org/10.1002/iroh.19850700232 Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 0.01 - 15 µmol/l [NH4]+ [µmol/l] (0.01 - 15 µmol/l, Seawater an...) Quality flag, ammonium QF [NH4]+ ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Argo quality control flags according to Thierry et al. (2022) https://archimer.ifremer.fr/doc/00187/29825/ Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 QC flag meanings: 0:no QC, 1: good, 2:probably good, 3: probably bad, 4: bad, 5: changed, 8: estimated, 9: missing QF [NH4]+ (QC flag meanings: 0:no QC, 1:...) Nitrogen, inorganic, dissolved DIN µmol/l nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Calculated (sum of Nitrate, Nitrite, Ammonium) Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 DIN [µmol/l] (Calculated (sum of Nitrate, N...) Analyst Analyst Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 of nutrient Analyst (of nutrient) Condition Cond Kirstein Inga Vanessa inga.kirstein@awi.de 0000-0003-2580-2694 of sample: F = fresh, SF = frozen Cond (of sample: F = fresh, SF = fr...) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels ProcLevel2 PANGAEA data processing level 2 https://wiki.pangaea.de/wiki/Processing_levels#PANGAEA_data_processing_level_2 LTER LTO author108237 author108238 author108239 author108240 author108241 author108242 author108243 author108244 author108245 author20311 author21267 author22676 author22677 author32787 author34883 author34886 author35983 author35998 author40211 author40215 author42404 author48477 author55919 author57319 author57320 author57321 author57322 author57323 author57324 author61087 author68164 author68165 author892 basis554 campaign3374425 campaign49473 curlevel30 event3063014 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst1842 inst32 journal16801 license21 method10690 method11590 method17255 method17940 method376 method4656 method470 method6927 param131744 param1720 param184731 param2922 param501419 param501420 param510669 param510670 param519646 param52 param522814 param524851 param525121 param6203 param6204 param716 param717 param755 param756 param757 param758 pi61087 proclevel30 project4872 ref129396 ref80353 ref94104 ref98727 refds756613 sourceinst1842 term1073131 term1073173 term1073482 term1073483 term1073484 term1073493 term1073922 term1078908 term21089 term2300022 term2300678 term2606205 term2663532 term2698012 term38548 term43863 term43972 term43975 term44030 term50392 term60281 term67626 term67659 topotype8 This version replaces doi:10.1594/PANGAEA.756613