Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2026 Inorganic nutrients measured on water bottle samples from CTD/Water sample-system during POLARSTERN cruise PS133/1 dataset https://doi.org/10.1594/PANGAEA.988302 2026-01-20T12:23:12 The objective of expedition PS133 performed from October to December 2022 was to understand the sources and pathways of input and transport of Fe and other nutrients into South Georgia Island shelf waters and further downstream in the Southern Antarctic Circumpolar Current (10°W to 42°W). The aim of the sub-project Island Impact - Understanding the regional impact of islands (South Georgia) on Southern Ocean biogeochemistry and ecosystem function was to determine the nutrients phosphate, nitrate, silicate, nitrite and ammonia in water samples from the entire water column in order to obtain nutrient sections through the POLARSTERN PS133.1 cruise. Water samples were taken by a ship-based Seabird SBE911plus CTD-Rosette system onboard RV POLARSTERN. Samples were measured in duplicate with a SEAL AA500 autoanalyzer system using SEAL methods based on Grasshoff et al., 1983, with the exception of ammonia based on a fluorometric determination developed by Kerouel, R. and Aminot, A. (1997). In Continuous flow systems a peristaltic pump delivers samples and reagents into a long heated glass tube, which acts as the reaction vessel. Air bubbles are regularly introduced into the flow to minimize dispersion and maintain a steady state. The specific product formed during the reaction with the species to be determined is normally detected with spectrophotometers at a specific wavelength. Samples were measured and validated against Certified Reference Material (CRM) 7602a and 7603a provided by JAMSTEC (Japan). Klaas Christine christine.klaas@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christine-klaas.html 0000-0002-6679-8970 2023 Master track of POLARSTERN cruise PS133/1 in 1 sec resolution (zipped, 21.8 MB) dataset Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.1594/PANGAEA.957237 Tippenhauer Sandra sandra.tippenhauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sandra-tippenhauer.html 0000-0003-3405-6275 Klaas Christine christine.klaas@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christine-klaas.html 0000-0002-6679-8970 Kasten Sabine sabine.kasten@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sabine-kasten.html 0000-0001-7453-5137 2023 Raw data of physical oceanography during RV POLARSTERN cruises PS133/1 and PS133/2 dataset https://doi.org/10.1594/PANGAEA.962314 -52.23561999999998 -9.99203 -56.24298 -49.06475 -33.3441595108705 -52.678121956521956 2022-10-13T21:33:29 2022-11-09T11:25:43 -8095.0 -244.8 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 GPF 20-1_053 Island Impact: Understanding the Regional Impact of South Georgia on Southern ACC Biogeochemistry and Ecosystem Function PS133/1_3-3 -49.06475 -9.99203 -3280.3 2022-10-13T21:33:29 -49.0661 -49.0661 -3280.3 2022-10-13T23:03:03 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/3214 Deployment depth: 3240 m PS133/1_6-4 -52.33144 -24.97884 -4361.5 2022-10-22T04:35:46 -52.332148 -24.967731 -4345.2 2022-10-22T06:42:36 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/3214 Deployment depth: 4312 m PS133/1_7-1 -51.23163 -52.23562 -2096.5 2022-10-30T18:51:54 -52.234189 -51.231075 -2091.2 2022-10-30T20:12:04 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 2063 m PS133/1_8-3 -50.51913 -41.79635 -1720.8 2022-11-01T18:56:34 -50.518055 -41.796133 -1719.0 2022-11-01T12:06:22 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 1679 m PS133/1_9-3 -51.28769 -40.00263 -5122.6 2022-11-02T16:21:18 -51.287525 -40.002001 -3792.0 2022-11-02T18:04:49 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 3767 m PS133/1_10-3 -51.63611 -39.24514 -3718.5 2022-11-04T03:58:09 -51.635939 -39.24409 -3719.1 2022-11-04T04:40:27 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 1000 m PS133/1_14-4 -54.19402 -35.9103 -245.8 2022-11-05T16:09:09 -54.193846 -35.910334 -244.8 2022-11-05T16:50:18 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 228 m PS133/1_15-3 -55.21535 -26.16303 -7800.9 2022-11-07T17:28:09 -55.216407 -26.159413 -8095.0 2022-11-07T18:14:43 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 1000 m PS133/1_16-3 -55.80284 -24.83929 -3000.6 2022-11-08T16:17:45 -55.809779 -24.839696 -4181.1 2022-11-08T17:08:54 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 1000 m PS133/1_17-3 -56.24298 -24.93948 -7732.8 2022-11-09T09:30:14 -56.266445 -24.925134 -7816.6 2022-11-09T11:25:43 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers https://registry.o2a-data.de/items/5460 Deployment depth: 4039 m 1635 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Campaign Campaign Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Campaign Event label Event Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Event Station label Station Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Station Number n # number Abundance or Count Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 device operation number n [#] DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Longitude ELEVATION Elevation m a.s.l. http://en.wikipedia.org/wiki/Elevation elevation http://purl.obolibrary.org/obo/PATO_0001687 Length L http://dbpedia.org/resource/Length Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Elevation [m a.s.l.] Bottle number Bottle # Abundance or Count CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Bottle [#] 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 CTD/Rosette CTD-RO CTD http://vocab.nerc.ac.uk/collection/L05/current/130/ CTD & XBT Water samplers Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 sample depth Depth water [m] Nitrate [NO3]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Molar Concentration Segmented Flow Analyzer, SEAL Analytical, SEAL AA500; Calculated according to Grasshoff et al. (1983) autoanalysers http://vocab.nerc.ac.uk/collection/L05/current/LAB04/ Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 [NO3]- [µmol/l] Nitrogen dioxide NO2 µmol/l nitrogen dioxide http://purl.obolibrary.org/obo/CHEBI_33101 Molar Concentration Segmented Flow Analyzer, SEAL Analytical, SEAL AA500; Calculated according to Grasshoff et al. (1983) autoanalysers http://vocab.nerc.ac.uk/collection/L05/current/LAB04/ Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 NO2 [µmol/l] Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration Segmented Flow Analyzer, SEAL Analytical, SEAL AA500; Calculated according to Grasshoff et al. (1983) autoanalysers http://vocab.nerc.ac.uk/collection/L05/current/LAB04/ Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 [PO4]3- [µmol/l] Silicon Si µmol/l silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 Molar Concentration Segmented Flow Analyzer, SEAL Analytical, SEAL AA500; Calculated according to Grasshoff et al. (1983) autoanalysers http://vocab.nerc.ac.uk/collection/L05/current/LAB04/ Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 Si [µmol/l] Ammonium [NH4]+ µmol/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Molar Concentration Segmented continuous flow analyzer, SEAL Analytical, QuAAtro according to Kerouel and Aminot (1997) https://doi.org/10.1016/S0304-4203(97)00040-6 SEAL Analytical QuAAtro Autoanalyser http://vocab.nerc.ac.uk/collection/L22/current/TOOL0511/ Ludwichowski Kai-Uwe kai-uwe.ludwichowski@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/kai-uwe-ludwichowski.html 0000-0002-6002-3023 [NH4]+ [µmol/l] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Antarctic Inorganic nutrients PS133/1 author24582 author40370 author47812 author671 award4456 basis1 campaign3373336 campaign48086 curlevel30 event3035706 event3035734 event3035754 event3035758 event3035767 event3035791 event3035806 event3035822 event3035827 event3035830 funder20472 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst32 license21 method10923 method16139 method17037 param102005 param134113 param145960 param187016 param49320 param52 param756 param758 param77489 pi40370 refds957237 refds962314 sourceinst32 term1073131 term1073173 term1073482 term1073484 term1073934 term1074806 term2299371 term2299433 term2300582 term2606205 term2663481 term26982 term30188 term38478 term43863 term43975 term44004 term44025 term44030 term52264 term67626 term68026 term73517