First and second-year sea-ice dissolved inorganic carbon and total alkalinity from the coring site during MOSAiC legs 1 to 5 in 2019/2020
type: Dataset
creator: Daiki Nomura
  type: Person
  family name: Nomura
  given name: Daiki
  affiliation: Hokkaido University
creator: Masaki Yoshimura
  type: Person
  family name: Yoshimura
  given name: Masaki
  affiliation: Hokkaido University
creator: Jessie Creamean
creator: Lena Eggers
  type: Person
  family name: Eggers
  given name: Lena
  affiliation: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
creator: Laura Heitmann
  type: Person
  family name: Heitmann
  given name: Laura
  affiliation: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
creator: Adam Ulfsbo
creator: Clara Jule Marie Hoppe
creator: Jessie Gardner
  type: Person
  family name: Gardner
  given name: Jessie
  affiliation: The Arctic University of Norway
creator: Emelia Chamberlain
  type: Person
  family name: Chamberlain
  given name: Emelia
  affiliation: Woods Hole Oceanographic Institution
creator: Elise Sayana Droste
creator: Allison A Fong
creator: Agneta Fransson
  type: Person
  family name: Fransson
  given name: Agneta
  affiliation: Norwegian Polar Institute
creator: Melissa Chierici
  type: Person
  family name: Chierici
  given name: Melissa
  affiliation: Norwegian Institute of Marine Research
creator: Mario Hoppema
creator: Dorothee C E Bakker
creator: Bruno Delille
publisher: PANGAEA
  type: Organization
  disambiguating description: Data Publisher for Earth & Environmental Science
included in data catalog: PANGAEA
  type: DataCatalog
  disambiguating description: Data Publisher for Earth & Environmental Science
date published: 2025-04-02
additional type: dataset
description: First- and second-year sea-ice core sampling for dissolved inorganic carbon (DIC) and total alkalinity (TA) were examined during MOSAiC legs 1 to 5 in 2019/2020 at main coring sites on the first ice floe (legs 1–4) and on the second ice floe (leg 5). See Fong et al. (2024) for details on sampling strategy. Ice cores were collected using an ice corer (Mark II coring system, Kovacs Enterprises, Inc., Indianapolis, USA). Ice cores were segmented at 10-cm intervals. Ice sections were placed into gas tight bags (Smart bags PA, AAK 5L, GL Sciences Inc., Japan or 5L Tedlar and Kynar Bags with Poly 2-in-1 Valve and clip'n seal, Keika Ventures, Chapel Hill, USA), air within the bag was removed, and ice melted in the dark at +4°C. Then, ice meltwater was subsampled into 200 mL glass vial (Maruemu Co., Ltd., Osaka, Japan) for measurement of DIC, TA, and salinity. Immediately after subsampling for measurement of DIC and TA, a 6.0% (wt.) mercuric chloride (HgCl2) solution (100 µL) was added to stop biological activity. Samples were stored at +4°C on the R/V Polarstern. For analysis, samples were transported to Hokkaido University, Hakodate, Hokkaido, Japan. Ice temperature data was shown in Oggier et al. (2024), Oggier et al. (2025), and Salganik et al. (2024). The DIC was determined by coulometry (Johnson et al., 1985; Johnson, 1992) using a home-made CO2 extraction system (Ono et al., 1998) and a coulometer (CM5012, UIC, Inc., Binghamton, NY, USA). The TA was determined by potentiometric titration (Dickson et al., 2007) using a TA analyzer (ATT-05, Kimoto Electric Co., Ltd., Japan). Both DIC and TA measurements were calibrated with reference seawater materials (Batch AR, AU, and AV; KANSO Technos Co., Ltd., Osaka, Japan) traceable to the Certified Reference Material distributed by Prof. A. G. Dickson (Scripps Institution of Oceanography, La Jolla, CA, USA). The standard deviations of the DIC and TA measurements, calculated from 10 subsamples taken from reference water with a D…
abstract: First- and second-year sea-ice core sampling for dissolved inorganic carbon (DIC) and total alkalinity (TA) were examined during MOSAiC legs 1 to 5 in 2019/2020 at main coring sites on the first ice floe (legs 1–4) and on the second ice floe (leg 5). See Fong et al. (2024) for details on sampling strategy. Ice cores were collected using an ice corer (Mark II coring system, Kovacs Enterprises, Inc., Indianapolis, USA). Ice cores were segmented at 10-cm intervals. Ice sections were placed into gas tight bags (Smart bags PA, AAK 5L, GL Sciences Inc., Japan or 5L Tedlar and Kynar Bags with Poly 2-in-1 Valve and clip'n seal, Keika Ventures, Chapel Hill, USA), air within the bag was removed, and ice melted in the dark at +4°C. Then, ice meltwater was subsampled into 200 mL glass vial (Maruemu Co., Ltd., Osaka, Japan) for measurement of DIC, TA, and salinity. Immediately after subsampling for measurement of DIC and TA, a 6.0% (wt.) mercuric chloride (HgCl2) solution (100 µL) was added to stop biological activity. Samples were stored at +4°C on the R/V Polarstern. For analysis, samples were transported to Hokkaido University, Hakodate, Hokkaido, Japan. Ice temperature data was shown in Oggier et al. (2024), Oggier et al. (2025), and Salganik et al. (2024). The DIC was determined by coulometry (Johnson et al., 1985; Johnson, 1992) using a home-made CO2 extraction system (Ono et al., 1998) and a coulometer (CM5012, UIC, Inc., Binghamton, NY, USA). The TA was determined by potentiometric titration (Dickson et al., 2007) using a TA analyzer (ATT-05, Kimoto Electric Co., Ltd., Japan). Both DIC and TA measurements were calibrated with reference seawater materials (Batch AR, AU, and AV; KANSO Technos Co., Ltd., Osaka, Japan) traceable to the Certified Reference Material distributed by Prof. A. G. Dickson (Scripps Institution of Oceanography, La Jolla, CA, USA). The standard deviations of the DIC and TA measurements, calculated from 10 subsamples taken from reference water with a D…
citation: Overview of the MOSAiC expedition: Ecosystem
citation: First-year sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the main coring site (MCS-FYI) during MOSAiC legs 1 to 4 in 2019/2020, version 2
citation: Second-year sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the main coring site (MCS-SYI) during MOSAiC legs 1 to 4 in 2019/2020, version 2
citation: Sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the coring sites during MOSAiC leg 5 in August-September 2020
citation: Guide to Best Practices for Ocean CO2 Measurements
citation: Single-operator multiparameter metabolic analyzer (SOMMA) for total carbon dioxide (C{sub T}) with coulometric detection
citation: Coulometric TCO₂ analyses for marine studies; an introduction
citation: Distribution of total carbonate and related properties in the North Pacific along 30°N
spatial coverage: Place
  geo: GeoShape
    box: 79.17673 -2.61104 88.72242 120.743667602539
temporal coverage: 2019-11-11T00:00:00/2020-09-07T00:00:00
funding: Multidisciplinary drifting Observatory for the Study of Arctic Climate
  type: MonetaryGrant
  funder: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
funding: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
  type: MonetaryGrant
  funder: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
size: QuantitativeValue
  value: 3294.0
  unit text: data points
variable measured: Event label
variable measured: LATITUDE
variable measured: LONGITUDE
variable measured: Sample type
  type: PropertyValue
  description: FYI=first year ice, SYI=second year ice
variable measured: DATE/TIME
  type: PropertyValue
  description: Date
  subject of: DefinedTermSet
    has defined term: Time
variable measured: DEPTH, ice/snow
  type: PropertyValue
  unit text: m
  description: sea ice section depth from top of sea ice
  subject of: DefinedTermSet
    has defined term: depth
    has defined term: ice
    has defined term: snow
    has defined term: Length
variable measured: Depth, ice/snow, top/minimum
  type: PropertyValue
  unit text: m
  description: sea ice section depth from top of sea ice
  subject of: DefinedTermSet
    has defined term: depth
    has defined term: ice
    has defined term: snow
    has defined term: minimum
    has defined term: Length
variable measured: Depth, ice/snow, bottom/maximum
  type: PropertyValue
  unit text: m
  description: sea ice section depth from top of sea ice
  subject of: DefinedTermSet
    has defined term: depth
    has defined term: ice
    has defined term: snow
    has defined term: maximum
    has defined term: Length
variable measured: Carbon, inorganic, dissolved
  type: PropertyValue
  unit text: µmol/kg
  measurement technique: Coulometry
  subject of: DefinedTermSet
    has defined term: carbon
    has defined term: dissolved
    has defined term: Molar Concentration
variable measured: Alkalinity, total
  type: PropertyValue
  unit text: µmol/kg
  measurement technique: Titration
  subject of: DefinedTermSet
    has defined term: total
    has defined term: Molar Concentration
variable measured: Salinity
  type: PropertyValue
  measurement technique: Conductivity sensor Cond 315i, WTW GmbH, Germany
  description: psu
  subject of: DefinedTermSet
    has defined term: salinity
keywords: Arctic Ocean; Carbonate chemistry; Dissolved inorganic carbon; Mosaic; Sea ice; Total alkalinity
license: https://creativecommons.org/licenses/by/4.0/
conditions of access: unrestricted
is accessible for free: true
language: en
distribution: DataDownload
  encoding format: text/tab-separated-values
distribution: DataDownload
  encoding format: text/html

Hokkaido University
type: Organization

Jessie Creamean
type: Person
family name: Creamean
given name: Jessie
affiliation: Colorado State University

Colorado State University
type: Organization
alternate name: CSU

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
type: Organization
alternate name: AWI

Adam Ulfsbo
type: Person
family name: Ulfsbo
given name: Adam
affiliation: University of Gothenburg

University of Gothenburg
type: Organization
alternate name: GU

Clara Jule Marie Hoppe
type: Person
family name: Hoppe
given name: Clara Jule Marie
affiliation: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven

The Arctic University of Norway
type: Organization
alternate name: UiT

Woods Hole Oceanographic Institution
type: Organization
alternate name: WHOI

Elise Sayana Droste
type: Person
family name: Droste
given name: Elise Sayana
affiliation: University of East Anglia

University of East Anglia
type: Organization
alternate name: UEA

Allison A Fong
type: Person
family name: Fong
given name: Allison A
affiliation: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven

Norwegian Polar Institute
type: Organization

Norwegian Institute of Marine Research
type: Organization

Mario Hoppema
type: Person
family name: Hoppema
given name: Mario
affiliation: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven

Dorothee C E Bakker
type: Person
family name: Bakker
given name: Dorothee C E
affiliation: University of East Anglia

Bruno Delille
type: Person
family name: Delille
given name: Bruno
affiliation: University of Liège

University of Liège
type: Organization

Overview of the MOSAiC expedition: Ecosystem
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creator: Anders Torstensson
creator: Andrew Toseland
creator: Adam Ulfsbo
creator: Maria A van Leeuwe
creator: Rolf Gradinger
date published: 2024
pagination: 00135
additional type: journal article

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Giulia Castellani
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Rolf Gradinger
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First-year sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the main coring site (MCS-FYI) during MOSAiC legs 1 to 4 in 2019/2020, version 2
type: CreativeWork
type: Dataset
creator: Marc Oggier
creator: Evgenii Salganik
creator: Laura M Whitmore
creator: Allison A Fong
creator: Clara Jule Marie Hoppe
creator: Robert Rember
creator: Knut Vilhelm Høyland
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creator: Rolf Gradinger
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creator: Steven W Fons
creator: Katarina Abrahamsson
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  given name: Katarina
creator: Ana M Aguilar-Islas
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creator: Michael Angelopoulos
creator: Stefanie Arndt
creator: John Paul Balmonte
creator: Deborah Bozzato
creator: Jeff S Bowman
creator: Giulia Castellani
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date published: 2024
additional type: dataset

Laura M Whitmore
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Robert Rember
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Dmitry V Divine
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Steven W Fons
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Michael Angelopoulos
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Josefa Verdugo
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Lei Wang
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Melinda Webster
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Second-year sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the main coring site (MCS-SYI) during MOSAiC legs 1 to 4 in 2019/2020, version 2
type: CreativeWork
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creator: Marc Oggier
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creator: Knut Vilhelm Høyland
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creator: Benjamin Allen Lange
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creator: Sinhué Torres-Valdés
creator: Anders Torstensson
creator: Adam Ulfsbo
creator: Josefa Verdugo
creator: Martina Vortkamp
  type: Person
  family name: Vortkamp
  given name: Martina
creator: Lei Wang
creator: Melinda Webster
creator: Mats A Granskog
date published: 2025
additional type: dataset

Sea-ice salinity, temperature, density, nutrient, oxygen and hydrogen isotope composition from the coring sites during MOSAiC leg 5 in August-September 2020
type: CreativeWork
type: Dataset
creator: Evgenii Salganik
creator: Laura M Whitmore
creator: Dorothea Bauch
creator: Emelia Chamberlain
  type: Person
  family name: Chamberlain
  given name: Emelia
creator: Ulrike Dietrich
  type: Person
  family name: Dietrich
  given name: Ulrike
creator: Elise Sayana Droste
creator: Allison A Fong
creator: Laura Heitmann
  type: Person
  family name: Heitmann
  given name: Laura
creator: Marcel Nicolaus
creator: Nikolai Kolabutin
  type: Person
  family name: Kolabutin
  given name: Nikolai
creator: Yuhong Li
  type: Person
  family name: Li
  given name: Yuhong
creator: Kai-Uwe Ludwichowski
creator: Andreas Marent
  type: Person
  family name: Marent
  given name: Andreas
creator: Moein Mellat
creator: Hanno Meyer
creator: Daiki Nomura
  type: Person
  family name: Nomura
  given name: Daiki
creator: Katrin Schmidt
creator: Egor Shimanchuk
  type: Person
  family name: Shimanchuk
  given name: Egor
creator: Linda Thielke
creator: Sinhué Torres-Valdés
creator: Alison L Webb
  type: Person
  family name: Webb
  given name: Alison L
creator: Mikaela Weiner
  type: Person
  family name: Weiner
  given name: Mikaela
creator: Mats A Granskog
date published: 2024
additional type: dataset

Dorothea Bauch
type: Person
family name: Bauch
given name: Dorothea

Kai-Uwe Ludwichowski
type: Person
family name: Ludwichowski
given name: Kai-Uwe

Moein Mellat
type: Person
family name: Mellat
given name: Moein

Hanno Meyer
type: Person
family name: Meyer
given name: Hanno

Linda Thielke
type: Person
family name: Thielke
given name: Linda

Guide to Best Practices for Ocean CO2 Measurements
type: CreativeWork
type: Article
creator: Andrew G Dickson
creator: Christopher L Sabine
  type: Person
  family name: Sabine
  given name: Christopher L
creator: J R Christian
  type: Person
  family name: Christian
  given name: J R
date published: 2007
pagination: 191 pp
is part of: PICES Special Publication
  type: CreativeWorkSeries
  type: PublicationVolume
  volume number: 3
additional type: other

Andrew G Dickson
type: Person
family name: Dickson
given name: Andrew G

Single-operator multiparameter metabolic analyzer (SOMMA) for total carbon dioxide (C{sub T}) with coulometric detection
type: CreativeWork
type: Report
creator: K M Johnson
  type: Person
  family name: Johnson
  given name: K M
date published: 1992
is part of: Operator's manual. Brookhaven National Lab. (BNL), Upton, NY (United States)
additional type: report

Coulometric TCO₂ analyses for marine studies; an introduction
type: CreativeWork
type: ScholarlyArticle
creator: Kenneth M Johnson
  type: Person
  family name: Johnson
  given name: Kenneth M
creator: Arthur E King
  type: Person
  family name: King
  given name: Arthur E
creator: J Mc N Sieburth
  type: Person
  family name: Sieburth
  given name: J Mc N
date published: 1985
pagination: 61-82
is part of: Marine Chemistry
  type: Periodical
  type: PublicationVolume
  volume number: 16(1)
additional type: journal article

Distribution of total carbonate and related properties in the North Pacific along 30°N
type: CreativeWork
type: ScholarlyArticle
creator: Tsuneo Ono
  type: Person
  family name: Ono
  given name: Tsuneo
creator: Shuichi Watanabe
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  given name: Shuichi
creator: Kuniaki Okuda
  type: Person
  family name: Okuda
  given name: Kuniaki
creator: Masao Fukasawa
  type: Person
  family name: Fukasawa
  given name: Masao
date published: 1998
pagination: 30873-30883
is part of: Journal of Geophysical Research: Oceans
  type: Periodical
  type: PublicationVolume
  volume number: 103(C13)
additional type: journal article

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
type: Organization
alternate name: AWI

Time
type: DefinedTerm
alternate name: T

depth
type: DefinedTerm

ice
type: DefinedTerm

Length
type: DefinedTerm
alternate name: L

carbon
type: DefinedTerm
alternate name: C

dissolved
type: DefinedTerm

salinity
type: DefinedTerm

Musheng Lan
type: Person
family name: Lan
given name: Musheng

Brice Loose
type: Person
family name: Loose
given name: Brice

Wieslaw Maslowski
type: Person
family name: Maslowski
given name: Wieslaw

Camille Mavis
type: Person
family name: Mavis
given name: Camille

Katja Metfies
type: Person
family name: Metfies
given name: Katja

Daiki Nomura
type: Person
family name: Nomura
given name: Daiki

Ellen Oldenburg
type: Person
family name: Oldenburg
given name: Ellen

Lasse Mørk Olsen
type: Person
family name: Olsen
given name: Lasse Mørk

Donald K Perovich
type: Person
family name: Perovich
given name: Donald K

Ovidiu Popa
type: Person
family name: Popa
given name: Ovidiu

Serdar Sakinan
type: Person
family name: Sakinan
given name: Serdar

Pauline Snoeijs-Leijonmalm
type: Person
family name: Snoeijs-Leijonmalm
given name: Pauline

Jacqueline Stefels
type: Person
family name: Stefels
given name: Jacqueline

Anders Svenson
type: Person
family name: Svenson
given name: Anders

Martina Vortkamp
type: Person
family name: Vortkamp
given name: Martina

Alison L Webb
type: Person
family name: Webb
given name: Alison L

Yanpei Zhuang
type: Person
family name: Zhuang
given name: Yanpei

Elementa - Science of the Anthropocene
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type: PublicationVolume
volume number: 12(1)