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Observation‐Based Estimate of Net Community Production in Antarctic Sea Ice

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  • معلومة اضافية
    • Contributors:
      Institute for Marine and Antarctic Studies Hobart (IMAS); University of Tasmania Hobart (UTAS); Helsingin yliopisto = Helsingfors universitet = University of Helsinki; Vrije Universiteit Brussel Bruxelles (VUB); Norwegian Polar Institute; Department of Earth System Science Stanford (ESS); Stanford EARTH; Stanford University-Stanford University; The Arctic University of Norway Tromsø, Norway (UiT); Cnr-Istituto di Scienze Marine del Consiglio Nazionale delle Ricerche = Marine Science Institute (CNR-ISMAR); Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège); The University of Edinburgh; Commonwealth Scientific and Industrial Research Organisation Australia (CSIRO); Cooperative Institute for Research in Environmental Sciences (CIRES); University of Colorado Boulder -National Oceanic and Atmospheric Administration (NOAA); Hokkaido University Sapporo, Japan; University of Liverpool; National Oceanography Centre (NOC); Université libre de Bruxelles (ULB); Nucleus for European Modeling of the Ocean (LOCEAN-NEMO R&D); Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN); Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)); École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
    • بيانات النشر:
      CCSD
      American Geophysical Union
    • الموضوع:
      2025
    • Collection:
      HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
    • نبذة مختصرة :
      International audience ; Abstract Antarctic sea ice is one of the largest biomes on Earth providing a critical habitat for ice algae. Measurements of primary production in Antarctic sea ice remain scarce and an observation‐based estimate of primary production has not been revisited in over 30 years. We fill this knowledge gap by presenting a newly compiled circumpolar data set of particulate and dissolved organic carbon from 362 ice cores, sampled between 1989 and 2019, to estimate sea‐ice net community production using a carbon biomass accumulation approach. Our estimate of 26.8–32.9 Tg C yr −1 accounts for at least 15%–18% of the total primary production in the Antarctic sea‐ice zone, less than a previous observation‐based estimate (63–70 Tg C yr −1 ) and consistent with recent modeled estimates. The results underpin the ecological significance of sea‐ice algae as an early season resource for pelagic food webs.
    • Relation:
      https://doi.org/10.26179/et5t-zv87; WOS: 001456694800001
    • الرقم المعرف:
      10.1029/2024gl113717
    • الدخول الالكتروني :
      https://hal.science/hal-05075723
      https://hal.science/hal-05075723v1/document
      https://hal.science/hal-05075723v1/file/Geophysical%20Research%20Letters%20-%202025%20-%20Dalman%20-%20Observation%E2%80%90Based%20Estimate%20of%20Net%20Community%20Production%20in%20Antarctic%20Sea%20Ice.pdf
      https://doi.org/10.1029/2024gl113717
    • Rights:
      http://creativecommons.org/licenses/by-nc-nd/ ; info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.46ED457A