Hung Chin-Chang 0000-0003-0870-8305 Department of Oceanography, National Sun Yat-sen University https://ror.org/00mjawt10 Lee Tse Min tmlee@mail.nsysu.edu.tw Department of Marine Biotechnology and Resources, National Sun Yat-sen University https://ror.org/00mjawt10 Shih Yung-Yen Department of Applied Science, Republic of China Naval Academy CNA http://www.cna.edu.tw/en/index.php https://ror.org/01megcb21 Hsieh Hsueh-Han 0000-0002-8421-8941 Department of Oceanography, National Sun Yat-sen University https://ror.org/00mjawt10 Wu Syun Han fire15734@gmail.com Department of Oceanography, National Sun Yat-sen University https://ror.org/00mjawt10 Abedneko Vicente G vincentabedneko@gmail.com Department of Oceanography, National Sun Yat-sen University https://ror.org/00mjawt10 Chow Chun Hoe kilmerchow@ntou.edu.tw Department of Marine Environmental Informatics, National Taiwan Ocean University NTOU http://english.ntou.edu.tw/bin/home.php https://ror.org/03bvvnt49 Chung Tzu Chieh pisces89311@gmail.com Department of Oceanography, National Sun Yat-sen University https://ror.org/00mjawt10 Liao Chin Hsin liao.ch.pt@gmail.com Department of Marine Biotechnology and Resources, National Sun Yat-sen University https://ror.org/00mjawt10 Zhang Jingjing jingjing.zhang@aut.ac.nz 0000-0001-8809-3405 Second Institute of Oceanography, State Oceanic Administration https://ror.org/01tkb7c15 Chen Jianfang jfchen@sio.org.cn Second Institute of Oceanography, State Oceanic Administration https://ror.org/01tkb7c15 Guo Laodong 0000-0002-5010-1630 University of Wisconsin–Milwaukee https://ror.org/031q21x57 Bacosa Hernando P hernando.bacosa@g.msuiit.edu.ph Mindanao State University – Iligan Institute of Technology MSU-IIT https://www.msuiit.edu.ph/ https://ror.org/00qemyc07 2026 CTD and POC flux in western North Pacific in July 2023 dataset https://doi.org/10.1594/PANGAEA.989247 2026-02-28T00:03:13 Here we present conductivity–temperature–depth (CTD) data, chlorophyll-a (Chl-a) profiles, particulate organic carbon (POC) fluxes, and stable carbon isotope (δ¹³C) compositions from five stations (P1–P5) in the low-latitude western North Pacific (6–13°N, 131.98–134.99°E). Data were collected during July–August 2023 aboard R/V Legend. The CTD system was a Sea-Bird Electronics SBE 9 equipped with a WETStar fluorometer. POC concentrations were determined using a Vario EL Cube elemental analyzer. POC fluxes were calculated from samples collected by floating sediment traps. Stable carbon isotope (δ¹³C) compositions of POC in floating-trap samples were analyzed with a continuous-flow isotope-ratio mass spectrometer (MAT253, Thermo Finnigan, San Jose, CA, USA) coupled to an elemental analyzer (EA1108, Carlo Erba Instruments) via a Conflo III interface (Thermo Finnigan, San Jose, CA, USA). 131.98 134.99 6.01 13.0 134.21348194471602 9.359733709906314 2023-07-08T00:00:00 2023-07-26T00:00:00 5.0 1000.0 National Science and Technology Council, Taiwan https://doi.org/10.13039/501100004663 NSTC 111-2119-M-019-002 National Science and Technology Council, Taiwan https://doi.org/10.13039/501100004663 NSTC 112-2119-M-019-008 National Science and Technology Council, Taiwan https://doi.org/10.13039/501100004663 NSTC 113-2119-M-019-008 National Science and Technology Council, Taiwan https://doi.org/10.13039/501100004663 NSTC 114-2119-M-019-002 LGD_2309-P1 10.02 131.98 -9.0 2023-07-08T00:00:00 10.02 131.98 -1000.0 2023-07-09T00:00:00 LGD_2309 2023-07-07 2023-07-20 Legend BIBP 9804100 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 LGD_2309-P2 13.0 134.11 -20.0 2023-07-11T00:00:00 13.0 134.11 -1000.0 2023-07-12T00:00:00 LGD_2309 2023-07-07 2023-07-20 Legend BIBP 9804100 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 LGD_2309-P3 9.99 134.99 -5.0 2023-07-14T00:00:00 9.99 134.99 -1000.0 2023-07-15T00:00:00 LGD_2309 2023-07-07 2023-07-20 Legend BIBP 9804100 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 LGD_2309-P4 7.83 134.99 -9.0 2023-07-16T00:00:00 7.83 134.99 -1000.0 2023-07-17T00:00:00 LGD_2309 2023-07-07 2023-07-20 Legend BIBP 9804100 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 LGD_2310-P5 6.01 134.99 -5.0 2023-07-25T00:00:00 6.01 134.99 -1000.0 2023-07-26T00:00:00 LGD_2310 2023-07-24 2023-08-05 Legend BIBP 9804100 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 36242 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Campaign Campaign Hsieh Hsueh-Han 0000-0002-8421-8941 Campaign Event label Event Hsieh Hsueh-Han 0000-0002-8421-8941 Event Station label Station Hsieh Hsueh-Han 0000-0002-8421-8941 Station Sample code/label Sample label Hsieh Hsueh-Han 0000-0002-8421-8941 Sample label Date/time start Date/time start http://en.wikipedia.org/wiki/ISO_8601 Hsieh Hsueh-Han 0000-0002-8421-8941 Date/time start Date/time end Date/time end http://en.wikipedia.org/wiki/ISO_8601 Hsieh Hsueh-Han 0000-0002-8421-8941 Date/time end LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Hsieh Hsueh-Han 0000-0002-8421-8941 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Hsieh Hsueh-Han 0000-0002-8421-8941 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 Hsieh Hsueh-Han 0000-0002-8421-8941 Depth water [m] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 Hsieh Hsueh-Han 0000-0002-8421-8941 Sal Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 Hsieh Hsueh-Han 0000-0002-8421-8941 Temp [°C] Chlorophyll a Chl a mg/m**3 hdl:10013/epic.32187.d001 chlorophyll a http://purl.obolibrary.org/obo/CHEBI_18230 Density http://dbpedia.org/resource/Density CTD, Sea-Bird, SBE 9; measured with Fluorometer, WETStar https://www.seabird.com/fluorometers/wetstar-fluorometer/family?productCategoryId=54627869908 Hsieh Hsueh-Han 0000-0002-8421-8941 Chl a [mg/m**3] Carbon, organic, particulate POC mg/m**3 carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic particulate Volume http://dbpedia.org/resource/Volume Density http://dbpedia.org/resource/Density Elemental analyzer, Vario EL Cube Hsieh Hsueh-Han 0000-0002-8421-8941 POC [mg/m**3] Carbon, organic, particulate, flux POC flux mg/m**2/day carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic Mass Accumulation Rate/Flux Elemental analyzer, Vario EL Cube Hsieh Hsueh-Han 0000-0002-8421-8941 POC flux [mg/m**2/day] δ13C δ13C ‰ δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes Continuous-flow isotope-ratio mass spectrometry (CF-IRMS), MAT253, Thermo Finnigan; coupled with an elemental analyzer, EA 1108, Carlo Erba; via a Conflo III interface, Thermo Finnigan Hsieh Hsueh-Han 0000-0002-8421-8941 δ13C [‰] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Chl-a CTD profile d13C POC flux western North Pacific author100183 author114233 author114234 author114235 author114236 author114237 author114238 author114239 author21889 author46858 author57803 author79889 author85296 award4578 award4579 award4580 award4581 basis5523 campaign53155 campaign53156 curlevel30 event3341265 event3341266 event3341267 event3341268 event3341269 funder21964 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst20241 inst20908 inst22264 inst22527 inst22528 inst22529 inst22530 license21 method16171 method18617 method18618 param102005 param123839 param128305 param134113 param150986 param152460 param4748 param527683 param716 param717 param790 pi100183 term1073089 term1073131 term1073594 term2606205 term2698012 term38338 term38477 term426 term43792 term43863 term43972 term43984 term44027 term44419 term47498 term53798 term54403 term60481