Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer
17 pages, 9 figures, 1 table.-- Data accessibility statement: The data analyzed in this study were mainly retrieved from links below: RINKO profiler-derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945337, water sampling derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945285, meteorological variables: https://doi.org/10.1594/PANGAEA.935267, and MSS profiler-derived variables: https://doi.org/10.1594/PANGAEA.939816. The oxygen isotope data stems from the ISOLAB Facility at AWI in Potsdam
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
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University of California Press
2023-05
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| Subjects: | Lead, Sea ice, Meltwater, Re-freezing, Mixing, Arctic Ocean, |
| Online Access: | http://hdl.handle.net/10261/336258 |
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Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean |
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Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean Nomura, Daiki Kawaguchi, Yusuke Webb, Alison L. Li, Yuhong Dall'Osto, Manuel Schmidt, Katrin Droste, Elise Chamberlain, Emelia J. Kolabutin, Nikolai Shimanchuk, Egor Hoppmann, Mario Gallagher, Michael R. Meyer, Hanno Mellat, Moein Bauch, Dorothea Gabarró, Carolina Smith, Madison Inoue, Jun Damm, Ellen Delille, Bruno Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
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17 pages, 9 figures, 1 table.-- Data accessibility statement: The data analyzed in this study were mainly retrieved from links below: RINKO profiler-derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945337, water sampling derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945285, meteorological variables: https://doi.org/10.1594/PANGAEA.935267, and MSS profiler-derived variables: https://doi.org/10.1594/PANGAEA.939816. The oxygen isotope data stems from the ISOLAB Facility at AWI in Potsdam |
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Japan Society for the Promotion of Science |
| author_facet |
Japan Society for the Promotion of Science Nomura, Daiki Kawaguchi, Yusuke Webb, Alison L. Li, Yuhong Dall'Osto, Manuel Schmidt, Katrin Droste, Elise Chamberlain, Emelia J. Kolabutin, Nikolai Shimanchuk, Egor Hoppmann, Mario Gallagher, Michael R. Meyer, Hanno Mellat, Moein Bauch, Dorothea Gabarró, Carolina Smith, Madison Inoue, Jun Damm, Ellen Delille, Bruno |
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artículo |
| topic_facet |
Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean |
| author |
Nomura, Daiki Kawaguchi, Yusuke Webb, Alison L. Li, Yuhong Dall'Osto, Manuel Schmidt, Katrin Droste, Elise Chamberlain, Emelia J. Kolabutin, Nikolai Shimanchuk, Egor Hoppmann, Mario Gallagher, Michael R. Meyer, Hanno Mellat, Moein Bauch, Dorothea Gabarró, Carolina Smith, Madison Inoue, Jun Damm, Ellen Delille, Bruno |
| author_sort |
Nomura, Daiki |
| title |
Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
| title_short |
Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
| title_full |
Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
| title_fullStr |
Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
| title_full_unstemmed |
Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer |
| title_sort |
meltwater layer dynamics in a central arctic lead: effects of lead width, re-freezing, and mixing during late summer |
| publisher |
University of California Press |
| publishDate |
2023-05 |
| url |
http://hdl.handle.net/10261/336258 |
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1781881246610096128 |
| spelling |
dig-icm-es-10261-3362582023-10-02T11:03:09Z Meltwater layer dynamics in a central Arctic lead: Effects of lead width, re-freezing, and mixing during late summer Nomura, Daiki Kawaguchi, Yusuke Webb, Alison L. Li, Yuhong Dall'Osto, Manuel Schmidt, Katrin Droste, Elise Chamberlain, Emelia J. Kolabutin, Nikolai Shimanchuk, Egor Hoppmann, Mario Gallagher, Michael R. Meyer, Hanno Mellat, Moein Bauch, Dorothea Gabarró, Carolina Smith, Madison Inoue, Jun Damm, Ellen Delille, Bruno Japan Society for the Promotion of Science Bundesministerium für Bildung und Forschung Natural Environment Research Council (UK) National Science Foundation (US) Agencia Estatal de Investigación (España) Ministerio de Ciencia, Innovación y Universidades (España) Deutsche Forschungsgemeinschaft Lead Sea ice Meltwater Re-freezing Mixing Arctic Ocean 17 pages, 9 figures, 1 table.-- Data accessibility statement: The data analyzed in this study were mainly retrieved from links below: RINKO profiler-derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945337, water sampling derived variables: https://doi.pangaea.de/10.1594/PANGAEA.945285, meteorological variables: https://doi.org/10.1594/PANGAEA.935267, and MSS profiler-derived variables: https://doi.org/10.1594/PANGAEA.939816. The oxygen isotope data stems from the ISOLAB Facility at AWI in Potsdam Leads play an important role in the exchange of heat, gases, vapour, and particles between seawater and the atmosphere in ice-covered polar oceans. In summer, these processes can be modified significantly by the formation of a meltwater layer at the surface, yet we know little about the dynamics of meltwater layer formation and persistence. During the drift campaign of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC), we examined how variation in lead width, re-freezing, and mixing events affected the vertical structure of lead waters during late summer in the central Arctic. At the beginning of the 4-week survey period, a meltwater layer occupied the surface 0.8 m of the lead, and temperature and salinity showed strong vertical gradients. Stable oxygen isotopes indicate that the meltwater consisted mainly of sea ice meltwater rather than snow meltwater. During the first half of the survey period (before freezing), the meltwater layer thickness decreased rapidly as lead width increased and stretched the layer horizontally. During the latter half of the survey period (after freezing of the lead surface), stratification weakened and the meltwater layer became thinner before disappearing completely due to surface ice formation and mixing processes. Removal of meltwater during surface ice formation explained about 43% of the reduction in thickness of the meltwater layer. The remaining approximate 57% could be explained by mixing within the water column initiated by disturbance of the lower boundary of the meltwater layer through wind-induced ice floe drift. These results indicate that rapid, dynamic changes to lead water structure can have potentially significant effects on the exchange of physical and biogeochemical components throughout the atmosphere–lead–underlying seawater system This study was supported by the Japan Society for the Promotion of Science (grant numbers: JP18H03745; JP18KK0292; JP17KK0083; JP17H04715; JP20H04345) and by a grant from the Joint Research Program of the Japan Arctic Research NetworkCenter. MM and HM are supported through the German Federal Ministry of Education and Research (grant number 03FO869A). ALW and KS were funded through the UK Natural Environment Research Council (NERC) (Grants No NE/S002596/1 and NE/S002502/1, respectively). ESD was supported by NERC through the EnvEast Doctoral Training Partnership (NE/L002582/1), as well as NERC and the Department for Business, Energy & Industrial Strategy (BEIS) through the UK Arctic Office. EJC was supported by the National Science Foundation (USA) NSF OPP 1821911 and NSF Graduate Research Fellowship. CG was funded through the Spanish funding Agency (AEI) though the grant PCI 2019-111844-2. MMS was funded through NSF OPP-1724467, OPP-1724748, and OPP-2138787. DB was funded through the German funding Agency (DFG) through grant BA1689/4-1 With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) Peer reviewed 2023-10-02T11:03:09Z 2023-10-02T11:03:09Z 2023-05 artículo Elementa. Science of the Anthropocene 11(1): 00102 (2023) CEX2019-000928-S http://hdl.handle.net/10261/336258 10.1525/elementa.2022.00102 2325-1026 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PCI2019-111844-2/ES/MEJORANDO LOS MODELOS DE EMISIVIDAD DEL HIELO MARINO EN LAS MICROONDAS DE BAJA FRECUENCIA/ Publisher's version https://doi.org/10.1525/elementa.2022.00102 Sí open University of California Press |