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On the in situ measurement of temperature and electrical conductivity of sea-water (1963)

Siedler, Gerold

Elsevier

In: Deep Sea Research and Oceanographic Abstracts, 10 (3). pp. 269-277.

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Publikationsdatum: 2016-09-22

Beschreibung: After some brief comments on the measurement of temperature and electrical conductivity in oceanography, the measuring probes suitable for in situ measurements are reviewed. Then the method of measurement is described using an improved model of the so-called bathysonde. This makes possible a continuous recording of temperature, conductivity, and pressure with high accuracy in great depths. Measurements from the Skagerrak and from the Mediterranean are considered. Finally, problems are discussed which arise when evaluating electrical conductivity and temperature from in situ measurements.

Materialart: Article , PeerReviewed

Format: text

DOI: 10.1016/0011-7471(63)90364-4

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On the processes of renewal of the North Atlantic deep water in the Irminger Sea (1964)

Holzkamm, F. ; Krause, Günther ; Siedler, Gerold

Elsevier

In: Deep Sea Research and Oceanographic Abstracts, 11 (6). pp. 881-890.

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Publikationsdatum: 2016-09-22

Beschreibung: Observations of temperature and electrical conductivity by a recording in situ salinometer are discussed in respect oo the physical processes connected with the renewal of North Atlantic deep water. The measured fine structure of the layering suggests that the downward movement of cooled surface water is combined with horizontal mixing down to more than 1000 m depth. This is confirmed by the existence of water elements which have slightly different temperature and salinity. Curves of temperature, conductivity, and salinity and T-S diagrams are shown.

Materialart: Article , PeerReviewed

Format: text

DOI: 10.1016/0011-7471(64)90337-7

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Consistency Relations for Internal Waves (1976)

Müller, P. ; Siedler, Gerold

Elsevier

In: Deep Sea Research and Oceanographic Abstracts, 23 (7). pp. 613-628.

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Publikationsdatum: 2018-03-08

Beschreibung: A complete set of linearly independent relationships among the different cross spectral components obtained from pairs of moored instruments is derived which can be utilized to test whether or not the observed fluctuations within the internal wave frequency band represent a field of propagating internal waves. A further complete set of relationships is derived which enables to test whether or not the internal wave field is horizontally isotropic and (or) vertically symmetric. These relations are compared with corresponding relations for alternative models (standing internal wave modes, three-dimensional isotropic turbulence) and their capability to discriminate between the various models is investigated. The tests are applied to a set of data for which it is found that the observed fluctuations are consistent with both propagating and standing internal waves whereas isotropic turbulence must be rejected for the most part of the internal wave frequency band.

Materialart: Article , PeerReviewed

Format: text

DOI: 10.1016/0011-7471(76)90004-8,

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