Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans
Large gradients and inter annual variations on the Laptev Sea shelf prevent the use of uniform property ranges for a classification of major water masses. The central Laptev Sea is dominated by predominantly marine waters, locally formed polynya waters and riverine summer surface waters. Marine wate...
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PANGAEA - Data Publisher for Earth & Environmental Science
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Online Access: | https://dx.doi.org/10.1594/pangaea.885448 https://doi.pangaea.de/10.1594/PANGAEA.885448 |
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ftdatacite:10.1594/pangaea.885448 2023-05-15T15:03:38+02:00 Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie 2018 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.885448 https://doi.pangaea.de/10.1594/PANGAEA.885448 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1002/2017jc013524 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Event label Sample code/label DATE/TIME LONGITUDE LATITUDE DEPTH, water Temperature, water Salinity Phosphate Silicate Nitrate Sea ice meltwater River water percentage δ18O, water CTD/Rosette Transdrift-XII Transdrift-XVII Transdrift-II ARK-XI/1 Transdrift-XXI Transdrift-XXII Transdrift-XIX Ivan Petrov Nikolay Evgenov Professor Multanovskiy Polarstern Viktor Buynitskiy Yakov Smirnitskiy Laptev Sea System LSS Supplementary Dataset dataset Dataset 2018 ftdatacite https://doi.org/10.1594/pangaea.885448 https://doi.org/10.1002/2017jc013524 2021-11-05T12:55:41Z Large gradients and inter annual variations on the Laptev Sea shelf prevent the use of uniform property ranges for a classification of major water masses. The central Laptev Sea is dominated by predominantly marine waters, locally formed polynya waters and riverine summer surface waters. Marine waters enter the central Laptev Sea from the northwestern Laptev Sea shelf and originate from the Kara Sea or the Arctic Ocean halocline. Local polynya waters are formed in the Laptev Sea coastal polynyas. Riverine summer surface waters are formed from Lena river discharge and local melt. We use a principal component analysis (PCA) in order to assess the distribution and importance of water masses within the Laptev Sea. This mathematical method is applied to hydro‐chemical summer data sets from the Laptev Sea from five years and allows to define water types based on objective and statistically significant criteria. We argue that the PCA‐derived water types are consistent with the Laptev Sea hydrography and indeed represent the major water masses on the central Laptev Sea shelf. Budgets estimated for the thus defined major Laptev Sea water masses indicate that freshwater inflow from the western Laptev Sea is about half or in the same order of magnitude as freshwater stored in locally formed polynya waters. Imported water dominates the nutrient budget in the central Laptev Sea; and only in years with enhanced local polynya activity is the nutrient budget of the locally formed water in the same order as imported nutrients. Dataset Arctic Arctic Ocean Kara Sea laptev Laptev Sea lena river Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Kara Sea Laptev Sea Nikolay ENVELOPE(140.000,140.000,71.617,71.617) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Sample code/label DATE/TIME LONGITUDE LATITUDE DEPTH, water Temperature, water Salinity Phosphate Silicate Nitrate Sea ice meltwater River water percentage δ18O, water CTD/Rosette Transdrift-XII Transdrift-XVII Transdrift-II ARK-XI/1 Transdrift-XXI Transdrift-XXII Transdrift-XIX Ivan Petrov Nikolay Evgenov Professor Multanovskiy Polarstern Viktor Buynitskiy Yakov Smirnitskiy Laptev Sea System LSS |
spellingShingle |
Event label Sample code/label DATE/TIME LONGITUDE LATITUDE DEPTH, water Temperature, water Salinity Phosphate Silicate Nitrate Sea ice meltwater River water percentage δ18O, water CTD/Rosette Transdrift-XII Transdrift-XVII Transdrift-II ARK-XI/1 Transdrift-XXI Transdrift-XXII Transdrift-XIX Ivan Petrov Nikolay Evgenov Professor Multanovskiy Polarstern Viktor Buynitskiy Yakov Smirnitskiy Laptev Sea System LSS Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
topic_facet |
Event label Sample code/label DATE/TIME LONGITUDE LATITUDE DEPTH, water Temperature, water Salinity Phosphate Silicate Nitrate Sea ice meltwater River water percentage δ18O, water CTD/Rosette Transdrift-XII Transdrift-XVII Transdrift-II ARK-XI/1 Transdrift-XXI Transdrift-XXII Transdrift-XIX Ivan Petrov Nikolay Evgenov Professor Multanovskiy Polarstern Viktor Buynitskiy Yakov Smirnitskiy Laptev Sea System LSS |
description |
Large gradients and inter annual variations on the Laptev Sea shelf prevent the use of uniform property ranges for a classification of major water masses. The central Laptev Sea is dominated by predominantly marine waters, locally formed polynya waters and riverine summer surface waters. Marine waters enter the central Laptev Sea from the northwestern Laptev Sea shelf and originate from the Kara Sea or the Arctic Ocean halocline. Local polynya waters are formed in the Laptev Sea coastal polynyas. Riverine summer surface waters are formed from Lena river discharge and local melt. We use a principal component analysis (PCA) in order to assess the distribution and importance of water masses within the Laptev Sea. This mathematical method is applied to hydro‐chemical summer data sets from the Laptev Sea from five years and allows to define water types based on objective and statistically significant criteria. We argue that the PCA‐derived water types are consistent with the Laptev Sea hydrography and indeed represent the major water masses on the central Laptev Sea shelf. Budgets estimated for the thus defined major Laptev Sea water masses indicate that freshwater inflow from the western Laptev Sea is about half or in the same order of magnitude as freshwater stored in locally formed polynya waters. Imported water dominates the nutrient budget in the central Laptev Sea; and only in years with enhanced local polynya activity is the nutrient budget of the locally formed water in the same order as imported nutrients. |
format |
Dataset |
author |
Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie |
author_facet |
Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie |
author_sort |
Bauch, Dorothea |
title |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
title_short |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
title_full |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
title_fullStr |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
title_full_unstemmed |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea, supplement to: Bauch, Dorothea; Cherniavskaia, Ekaterina (2018): Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget. Journal of Geophysical Research: Oceans |
title_sort |
physical oceanography, nutrients, and δ¹⁸o measured on water bottle samples in the laptev sea, supplement to: bauch, dorothea; cherniavskaia, ekaterina (2018): water mass classification on a highly variable arctic shelf region: origin of laptev sea water masses and implications for the nutrient budget. journal of geophysical research: oceans |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.885448 https://doi.pangaea.de/10.1594/PANGAEA.885448 |
long_lat |
ENVELOPE(140.000,140.000,71.617,71.617) |
geographic |
Arctic Arctic Ocean Kara Sea Laptev Sea Nikolay |
geographic_facet |
Arctic Arctic Ocean Kara Sea Laptev Sea Nikolay |
genre |
Arctic Arctic Ocean Kara Sea laptev Laptev Sea lena river Sea ice |
genre_facet |
Arctic Arctic Ocean Kara Sea laptev Laptev Sea lena river Sea ice |
op_relation |
https://dx.doi.org/10.1002/2017jc013524 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.885448 https://doi.org/10.1002/2017jc013524 |
_version_ |
1766335492189585408 |