title: |
Zur Dichte des Standardmeerwassers |
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contributing persons: |
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contributing corporate bodies: |
Universität Rostock[Grad-verleihende Institution] |
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38329-6 |
Universität Rostock, Fakultät für Maschinenbau und Schiffstechnik[Grad-verleihende Institution] |
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10085033-9 |
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abstract: |
In der Ozeanografie wird die Meerwasserdichte mit Zustandsgleichungen bestimmt, um
Tiefseeströmungen zu simulieren. Die Standardzustandsgleichungen TEOS‑10 und EOS-80
beruhen auf 40 Jahre alten Dichtemessungen an Standardmeerwasser, deren Messunsicherheiten
nach dem damaligen Wissensstand abgeschätzt worden waren.Neue hochgenaue Dichtemessungen
an Standardmeerwasser werden beschrieben. Die Validierung mit den neuen Dichtemessungen
zeigt, dass die Unsicherheit in der Dichte des TEOS‑10 (und EOS-80) sowie die einiger
zugrunde liegender Dichtemessungen unterschätzt werden.
[German] |
In oceanography, for simulation of deep‑sea currents, the seawater density is determined
using equations of state. The standard equations TEOS‑10 and EOS‑80 are based on 40‑year‑old
density measurements on standard seawater, whereof the measurement uncertainties had
been estimated according to the knowledge at that time. New highly accurate density
measurements on standard seawater are reported. The validation using the new density
measurements suggests that the uncertainty in density of TEOS‑10 (and EOS‑80) and
that of some of the underlying density measurements are underestimated.
[English] |
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document type: |
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institution: |
Faculty of Mechanical Engineering and Marine Technologies |
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language: |
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subject class (DDC): |
550 Earth sciences |
620 Engineering & allied operations |
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publication / production: |
Rostock
Rostock: Universität Rostock
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2019
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statement of responsibility: |
vorgelegt von Hannes Schmidt |
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notes: |
Fachartikel: Schmidt H, Wolf H & Hassel E (2016): A method to measure the density
of seawater accurately to the level of 10 to −6, Metrologia, 53, 2, 770–86, DOI: 10.1088/0026‑1394/53/2/770.
Schmidt H, Seitz S, Hassel E & Wolf H (2018): The density–salinity relation of standard
seawater, Ocean Science, 14, 1, 15–40, DOI: 10.5194/OS‑14‑15‑2018. |
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identifiers: |
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access condition: |
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license/rights statement: |
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RosDok id: |
rosdok_disshab_0000002245 |
created / modified: |
31.01.2020 / 08.08.2023
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metadata license: |
The metadata of this document was dedicated to the public domain (CC0 1.0 Universal Public Domain Dedication). |