Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N
14C concentrations, as well as 14C, hydrographic and nutrient data are reported for 5 hydrographic stations that form a transatlantic section near 40° N ("Meteor" cruise no. 23, 1971). Precision (for 14C ± 0.3 ‰ or better) and comparability with literature data are specified. A planned int...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.604846 2023-05-15T17:22:44+02:00 Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N Roether, Wolfgang Münnich, Karl O Ribbat, B Sarmiento, Jorge L MEDIAN LATITUDE: 41.246667 * MEDIAN LONGITUDE: -26.713333 * SOUTH-BOUND LATITUDE: 38.483333 * WEST-BOUND LONGITUDE: -42.933333 * NORTH-BOUND LATITUDE: 43.816667 * EAST-BOUND LONGITUDE: -11.483333 * DATE/TIME START: 1971-06-09T00:00:00 * DATE/TIME END: 1971-06-17T00:00:00 1980-03-16 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.604846 https://doi.org/10.1594/PANGAEA.604846 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.604846 https://doi.org/10.1594/PANGAEA.604846 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Roether, Wolfgang; Münnich, Karl O; Ribbat, B; Sarmiento, Jorge L (1980): A transatlantic 14C-section near 40°C N. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A21, 57-70 Golf of Cadiz M23 M23_211 M23_212 M23_213 M23_214 M23_215 Meteor (1964) Nordost-Atlantik-Expedition 1971 Water sample WS Dataset 1980 ftpangaea https://doi.org/10.1594/PANGAEA.604846 2023-01-20T07:31:03Z 14C concentrations, as well as 14C, hydrographic and nutrient data are reported for 5 hydrographic stations that form a transatlantic section near 40° N ("Meteor" cruise no. 23, 1971). Precision (for 14C ± 0.3 ‰ or better) and comparability with literature data are specified. A planned intercomparison with the US GEOSECS program within the Newfoundland Basin deep water failed because of variability of water characteristics. The observed 14C values decrease from about Delta 14C = + 80 ‰ at the surface to -70 ‰ at 2000 m depth. Deeper down, the values west of the Midatlantic Ridge remain similar, whereas those east of the ridge decrease further, to about - 110 ‰. It is shown that bomb-14C is prominent down to about 1500 m depth. Beyond this depth the bomb 14C component is small and is negligible in the eastern basin below 2800 m. On the basis of the 14C-tritium correlation, the distribution of natural 14C below about 1500 m depth is derived from the observations. In the deep and bottom water east of the ridge the 14C-salinity relationship seemingly is non-linear. Contrary to expectation, the 14C concentration in the bottom water is not lower than found on an US GEOSECS station near 10° N. Apparently, lateral concentration differences in the Northeast Atlantic bottom water as well as nonlinearity of the 14C-salinity relationship at 40° N do not exceed 10 ‰ in Delta 14C. Dataset Newfoundland Northeast Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Atlantik ENVELOPE(-42.933333,-11.483333,43.816667,38.483333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Golf of Cadiz M23 M23_211 M23_212 M23_213 M23_214 M23_215 Meteor (1964) Nordost-Atlantik-Expedition 1971 Water sample WS |
spellingShingle |
Golf of Cadiz M23 M23_211 M23_212 M23_213 M23_214 M23_215 Meteor (1964) Nordost-Atlantik-Expedition 1971 Water sample WS Roether, Wolfgang Münnich, Karl O Ribbat, B Sarmiento, Jorge L Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
topic_facet |
Golf of Cadiz M23 M23_211 M23_212 M23_213 M23_214 M23_215 Meteor (1964) Nordost-Atlantik-Expedition 1971 Water sample WS |
description |
14C concentrations, as well as 14C, hydrographic and nutrient data are reported for 5 hydrographic stations that form a transatlantic section near 40° N ("Meteor" cruise no. 23, 1971). Precision (for 14C ± 0.3 ‰ or better) and comparability with literature data are specified. A planned intercomparison with the US GEOSECS program within the Newfoundland Basin deep water failed because of variability of water characteristics. The observed 14C values decrease from about Delta 14C = + 80 ‰ at the surface to -70 ‰ at 2000 m depth. Deeper down, the values west of the Midatlantic Ridge remain similar, whereas those east of the ridge decrease further, to about - 110 ‰. It is shown that bomb-14C is prominent down to about 1500 m depth. Beyond this depth the bomb 14C component is small and is negligible in the eastern basin below 2800 m. On the basis of the 14C-tritium correlation, the distribution of natural 14C below about 1500 m depth is derived from the observations. In the deep and bottom water east of the ridge the 14C-salinity relationship seemingly is non-linear. Contrary to expectation, the 14C concentration in the bottom water is not lower than found on an US GEOSECS station near 10° N. Apparently, lateral concentration differences in the Northeast Atlantic bottom water as well as nonlinearity of the 14C-salinity relationship at 40° N do not exceed 10 ‰ in Delta 14C. |
format |
Dataset |
author |
Roether, Wolfgang Münnich, Karl O Ribbat, B Sarmiento, Jorge L |
author_facet |
Roether, Wolfgang Münnich, Karl O Ribbat, B Sarmiento, Jorge L |
author_sort |
Roether, Wolfgang |
title |
Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
title_short |
Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
title_full |
Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
title_fullStr |
Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
title_full_unstemmed |
Carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° N |
title_sort |
carbon isotopes, hydrography, and nutrients measured at hydrographic stations from a transatlantic section near 40° n |
publisher |
PANGAEA |
publishDate |
1980 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.604846 https://doi.org/10.1594/PANGAEA.604846 |
op_coverage |
MEDIAN LATITUDE: 41.246667 * MEDIAN LONGITUDE: -26.713333 * SOUTH-BOUND LATITUDE: 38.483333 * WEST-BOUND LONGITUDE: -42.933333 * NORTH-BOUND LATITUDE: 43.816667 * EAST-BOUND LONGITUDE: -11.483333 * DATE/TIME START: 1971-06-09T00:00:00 * DATE/TIME END: 1971-06-17T00:00:00 |
long_lat |
ENVELOPE(-42.933333,-11.483333,43.816667,38.483333) |
geographic |
Atlantik |
geographic_facet |
Atlantik |
genre |
Newfoundland Northeast Atlantic |
genre_facet |
Newfoundland Northeast Atlantic |
op_source |
Supplement to: Roether, Wolfgang; Münnich, Karl O; Ribbat, B; Sarmiento, Jorge L (1980): A transatlantic 14C-section near 40°C N. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A21, 57-70 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.604846 https://doi.org/10.1594/PANGAEA.604846 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.604846 |
_version_ |
1766109560603410432 |