Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea
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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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.885448 2024-09-15T17:50:44+00:00 Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie MEDIAN LATITUDE: 75.912707 * MEDIAN LONGITUDE: 124.937759 * SOUTH-BOUND LATITUDE: 71.502700 * WEST-BOUND LONGITUDE: 97.065000 * NORTH-BOUND LATITUDE: 79.750000 * EAST-BOUND LONGITUDE: 143.022000 * DATE/TIME START: 1994-09-04T00:00:00 * DATE/TIME END: 2014-09-27T00:00:00 * MINIMUM DEPTH, water: 0.00 m * MAXIMUM DEPTH, water: 375.00 m 2018 text/tab-separated-values, 10429 data points https://doi.pangaea.de/10.1594/PANGAEA.885448 https://doi.org/10.1594/PANGAEA.885448 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.885448 https://doi.org/10.1594/PANGAEA.885448 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess 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, https://doi.org/10.1002/2017JC013524 ARK-XI/1 CTD/Rosette CTD-RO DATE/TIME DEPTH water Event label IP07-2_1 IP07-2_10-1 IP07-2_10P IP07-2_11-1 IP07-2_11-1P IP07-2_1-1L IP07-2_1-1P IP07-2_12-1 IP07-2_12P IP07-2_13-1 IP07-2_14-1 IP07-2_14-1P IP07-2_15-1 IP07-2_15-1P IP07-2_16-1 IP07-2_17-1 IP07-2_17P IP07-2_18-1 IP07-2_18-1P IP07-2_19-1 IP07-2_19P IP07-2_2 IP07-2_20-1 IP07-2_21-1 IP07-2_21-1P IP07-2_2-1L IP07-2_22-1 IP07-2_22-1L IP07-2_22-1P IP07-2_23-1 IP07-2_24-1 IP07-2_24P IP07-2_25-1 IP07-2_25-1P IP07-2_26-1 IP07-2_26P IP07-2_28-1P IP07-2_29-1P IP07-2_31P IP07-2_32-1P IP07-2_33P IP07-2_35-1P IP07-2_36-1P dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.88544810.1002/2017JC013524 2024-07-24T02:31:33Z 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 PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(97.065000,143.022000,79.750000,71.502700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ARK-XI/1 CTD/Rosette CTD-RO DATE/TIME DEPTH water Event label IP07-2_1 IP07-2_10-1 IP07-2_10P IP07-2_11-1 IP07-2_11-1P IP07-2_1-1L IP07-2_1-1P IP07-2_12-1 IP07-2_12P IP07-2_13-1 IP07-2_14-1 IP07-2_14-1P IP07-2_15-1 IP07-2_15-1P IP07-2_16-1 IP07-2_17-1 IP07-2_17P IP07-2_18-1 IP07-2_18-1P IP07-2_19-1 IP07-2_19P IP07-2_2 IP07-2_20-1 IP07-2_21-1 IP07-2_21-1P IP07-2_2-1L IP07-2_22-1 IP07-2_22-1L IP07-2_22-1P IP07-2_23-1 IP07-2_24-1 IP07-2_24P IP07-2_25-1 IP07-2_25-1P IP07-2_26-1 IP07-2_26P IP07-2_28-1P IP07-2_29-1P IP07-2_31P IP07-2_32-1P IP07-2_33P IP07-2_35-1P IP07-2_36-1P |
spellingShingle |
ARK-XI/1 CTD/Rosette CTD-RO DATE/TIME DEPTH water Event label IP07-2_1 IP07-2_10-1 IP07-2_10P IP07-2_11-1 IP07-2_11-1P IP07-2_1-1L IP07-2_1-1P IP07-2_12-1 IP07-2_12P IP07-2_13-1 IP07-2_14-1 IP07-2_14-1P IP07-2_15-1 IP07-2_15-1P IP07-2_16-1 IP07-2_17-1 IP07-2_17P IP07-2_18-1 IP07-2_18-1P IP07-2_19-1 IP07-2_19P IP07-2_2 IP07-2_20-1 IP07-2_21-1 IP07-2_21-1P IP07-2_2-1L IP07-2_22-1 IP07-2_22-1L IP07-2_22-1P IP07-2_23-1 IP07-2_24-1 IP07-2_24P IP07-2_25-1 IP07-2_25-1P IP07-2_26-1 IP07-2_26P IP07-2_28-1P IP07-2_29-1P IP07-2_31P IP07-2_32-1P IP07-2_33P IP07-2_35-1P IP07-2_36-1P Bauch, Dorothea Cherniavskaia, Ekaterina Novikhin, Andrey Kassens, Heidemarie Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea |
topic_facet |
ARK-XI/1 CTD/Rosette CTD-RO DATE/TIME DEPTH water Event label IP07-2_1 IP07-2_10-1 IP07-2_10P IP07-2_11-1 IP07-2_11-1P IP07-2_1-1L IP07-2_1-1P IP07-2_12-1 IP07-2_12P IP07-2_13-1 IP07-2_14-1 IP07-2_14-1P IP07-2_15-1 IP07-2_15-1P IP07-2_16-1 IP07-2_17-1 IP07-2_17P IP07-2_18-1 IP07-2_18-1P IP07-2_19-1 IP07-2_19P IP07-2_2 IP07-2_20-1 IP07-2_21-1 IP07-2_21-1P IP07-2_2-1L IP07-2_22-1 IP07-2_22-1L IP07-2_22-1P IP07-2_23-1 IP07-2_24-1 IP07-2_24P IP07-2_25-1 IP07-2_25-1P IP07-2_26-1 IP07-2_26P IP07-2_28-1P IP07-2_29-1P IP07-2_31P IP07-2_32-1P IP07-2_33P IP07-2_35-1P IP07-2_36-1P |
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 |
title_short |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea |
title_full |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea |
title_fullStr |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea |
title_full_unstemmed |
Physical oceanography, nutrients, and δ¹⁸O measured on water bottle samples in the Laptev Sea |
title_sort |
physical oceanography, nutrients, and δ¹⁸o measured on water bottle samples in the laptev sea |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.885448 https://doi.org/10.1594/PANGAEA.885448 |
op_coverage |
MEDIAN LATITUDE: 75.912707 * MEDIAN LONGITUDE: 124.937759 * SOUTH-BOUND LATITUDE: 71.502700 * WEST-BOUND LONGITUDE: 97.065000 * NORTH-BOUND LATITUDE: 79.750000 * EAST-BOUND LONGITUDE: 143.022000 * DATE/TIME START: 1994-09-04T00:00:00 * DATE/TIME END: 2014-09-27T00:00:00 * MINIMUM DEPTH, water: 0.00 m * MAXIMUM DEPTH, water: 375.00 m |
long_lat |
ENVELOPE(97.065000,143.022000,79.750000,71.502700) |
genre |
Arctic Arctic Ocean Kara Sea laptev Laptev Sea lena river |
genre_facet |
Arctic Arctic Ocean Kara Sea laptev Laptev Sea lena river |
op_source |
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, https://doi.org/10.1002/2017JC013524 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.885448 https://doi.org/10.1594/PANGAEA.885448 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.88544810.1002/2017JC013524 |
_version_ |
1810292541131587584 |