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  • Weitere Quellen  (17)
  • Taylor & Francis  (7)
  • American Geophysical Union  (6)
  • AMS (American Meteorological Society)  (4)
  • 2010-2014
  • 1985-1989  (17)
  • 1960-1964
  • 1986  (17)
  • 1
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    The effect of finite bandwidth on seismic scaling relationships (1986)
    American Geophysical Union
    In:  Professional Paper, Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 275-283, (ISBN 0080419208)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Spectrum ; Source parameters ; Seismology
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    BIBLIOGRAFIE SEISMOLOGIE
  • 2
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    Dense seismograph array observations of earthquake rupture dynamics (1986)
    American Geophysical Union
    In:  Bull., Open-File Rept., Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 285-296, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Seismology ; Seismic networks ; Fracture ; Source
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    BIBLIOGRAFIE SEISMOLOGIE
  • 3
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    Implication of attenuation for studies of the earthquake source (1986)
    American Geophysical Union
    In:  Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, pp. 311-318, (ISBN 3-540-24988-5)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Seismology ; Source ; Attenuation
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    BIBLIOGRAFIE SEISMOLOGIE
  • 4
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    On simulating large earthquakes by Green's-function addition of smaller earthquakes (1986)
    American Geophysical Union
    In:  Bull., Polar Proj. OP-O3A4, Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 269-274, (ISBN: 3-540-23712-7)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Seismology ; Green's function ; Source
    Standort Signatur Erwartet Verfügbarkeit
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    BIBLIOGRAFIE SEISMOLOGIE
  • 5
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    Objective determination of source parameters and similarity of earthquakes of different size (1986)
    American Geophysical Union
    In:  Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, pp. 259-267, (ISBN 3-540-24988-5)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Seismology ; Source parameters ; Seismicity
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    BIBLIOGRAFIE SEISMOLOGIE
  • 6
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    Seismic slip, aseismic slip, and the mechanics of repeating earthquakes on the Calaveras fault, California (1986)
    American Geophysical Union
    In:  Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 195-207, (ISBN 0080419208)
    Details
    Publikationsdatum: 1986
    Schlagwort(e): Source parameters ; Fault zone ; Inelastic ; Creep observations and analysis ; Source ; Earthquake precursor: prediction research
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    BIBLIOGRAFIE SEISMOLOGIE
  • 7
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    Some foods of Buller's mollymawk Diomedea bulleri (1986)
    Taylor & Francis
    In:  New Zealand Journal of Zoology, 13 (2). pp. 169-174.
    Details
    Publikationsdatum: 2020-06-22
    Beschreibung: Food samples from 27 Buller’s mollymawks Diomedea bulleri from the New Zealand region showed that cephalopods were, by frequency of occurrence and by mass, their preferred food. Fish, crustaceans, and tunicates, in decreasing order of importance, also were taken. Seventeen species of Cephalopoda were identified by their beaks, with 78.5% of individuals belonging to the Ommastrephidae (77% Nototodarus spp.) and 10% to the Histioteuthidae. The diet was compared with that of four other small species of Diomedea, and found to be similar to that of D. chrysostoma, D. irrorata, and D. cauta, but different from that of D. melanophris, whose preferred food is euphausiids. Squid-fishing operations around New Zealand may come into competition with Buller’s mollymawk.
    Materialart: Article , PeerReviewed
    Format: text
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  • 8
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    Squid beaks regurgitated by greyheaded and yellownosed albatrosses,Diomedea chrysostoma and D. chlororhynchos at the Prince Edward Islands (1986)
    Taylor & Francis
    In:  Ostrich, 57 (4). pp. 203-206.
    Details
    Publikationsdatum: 2020-06-15
    Beschreibung: Squid regurgitated by Greyheaded and Yellownosed Albatrosses at the Prince Edward Islands were predominantly two onychoteuthid species, Kondakovia longimana and Moroteuthis knipovitchi. Both squid are characteristic of cold, Antarctic waters and may have been caught south of the Antarctic Convergence, some 350 km to the south of the breeding station. Both albatross species regurgitated similar squid (by species and size), and these squid were similar to those found in previous studies of the diet of Wandering, Sooty and Lightmantled Sooty Albatrosses at the Prince Edward Islands
    Materialart: Article , PeerReviewed
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  • 9
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    Tank experiments with natural plankton: The influence of light and zooplankton grazing on pelagic system structure (1986)
    Taylor & Francis
    In:  Ophelia, Suppl. 4 . pp. 179-190.
    Details
    Publikationsdatum: 2019-02-27
    Beschreibung: The development of natural plankton populations in tanks (1000l) and in Kiel Bight is compared with special references to mechanisms affecting species composition in spring and early summer. In a first experiment, three tanks filled with surface water just prior to the bloom (February 1983) were held under different light conditions. Exponential growth coincided with onset of the growth in the field. Growth in the two darkened tanks was retarded. In the field, a bloom of mainly Thalassiosira polychorda was observed, whereas in the light tank Thlassiosira 'pseudonana' and in the two darker tanks Skeletonema costatum were the domninant species. The observed shift in species compositions between tanks and in the field can be attributed partly to differences in growth strategies of species involved but also to the specific effect of population enclosure. In a second experiment (May/ June 1983) the influence of grazing pressure was studied in two tanks with different abundance of metazooplankton. Nauplii as well as large protozoans were grazed down more rapidly than the samller phytoflagellates, which confirmed earlier hypotheses based on field observations. After decline of grazers, possibly due to starvation, a succession from bacteria to nanoflagellates and then ciliates was observed.
    Materialart: Article , PeerReviewed
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    ARTIKEL (OCEANREP)
  • 10
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    Large Diurnal Sea Surface Temperature Variability: Satellite and In Situ Measurements (1986)
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 16 (5). pp. 827-837.
    Details
    Publikationsdatum: 2016-04-19
    Beschreibung: Data from a surface mooring located in the Sargasso Sea at 34°N, 70°W between May 1982 and May 1984 were compared with satellite data to investigate large diurnal sea surface temperature changes. Mooring and satellite measurements are in excellent agreement for those days on which no clouds covered the site at the time of the satellite pass. During the summer half-year at this site, there is a 20% charm of diurnal warming of more than 0.5°C, with values of up to 3.5°C observed in the two-year period. Diurnal warming observed at the mooring has been simulated well by a one-dimensional model driven by local beat and momentum fluxes. Under the conditions of very light wind and strong insolation that produce the Largest surface warming, the surface mixed-layer depth reduces to the convection depth, and wind-mixing becomes unimportant. The thermal response is then limited to depths between 1 and 2 m, making it likely that such events have been underreported in routine ship observations. In all cases observed, the spatial extent of warming events as determined by satellite data are well correlated with the corresponding atmospheric pressure patterns. Conditions giving rise to the largest diurnal warming events are often associated with a westward-extending ridge of the Bermuda high. In the region studied, 57°–75°W and 29°–43°N, diurnal warming of more than 1°C was found on occasion to cover areas in excess of 300 000 km2, with warming of more than 2°C coveting areas in excess of 130 000 km2.
    Materialart: Article , PeerReviewed
    Format: text
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  • 11
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    A Low-Cost Digital XBT System and its Application to the Real-Time Computation of Dynamic Height (1986)
    AMS (American Meteorological Society)
    In:  Journal of Atmospheric and Oceanic Technology, 3 (1). pp. 75-83.
    Details
    Publikationsdatum: 2016-05-10
    Beschreibung: An XBT interface is described for use with Commodore and other 6502 based microprocessors. This interface takes the form of a single circuit board mounted inside the microcomputer and is completely software controlled. The application of this digital XBT system to the real-time computation of density and dynamic height, using historical or recent temperature-salinity relationships, is also described. Comparison between XBT and CTD measured temperatures from the Northeast Atlantic yield a mean temperature difference of −0.08°C and an rms temperature difference of 0.33°C for the upper 800 m. Examples of dynamic topography maps and a temperature section computed using this technique are also presented and comparison between objectively analyzed XBT and CTD dynamic topographies demonstrates the reliability of the method for mapping the baroclinic flow.
    Materialart: Article , PeerReviewed
    Format: text
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  • 12
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    Drag Coefficients of Oceanographic Mooring Components (1986)
    AMS (American Meteorological Society)
    In:  Journal of Atmospheric and Oceanic Technology, 3 (2). pp. 255-264.
    Details
    Publikationsdatum: 2020-08-04
    Beschreibung: The inclination of oceanographic mooring lines due to current drag causes errors in time series observations of currents and temperatures. The prediction of this effect requires knowledge of the drag coefficients for the mooring components. Drag coefficients, known for simple geometric shapes such as spheres or cylinders, are commonly used for mooring response computations. Selected mooring components (buoyancy elements and instruments) were tested in a tow tank to determine their actual drag coefficients. Over the Reynolds Number range, typical of oceanic conditions, deviations of the drag coefficient up to 50% are found when compared with the appropriate simple geometric shape coefficients. A set of model moorings and model current profiles is used to determine the resulting changes in component depth level and displacement. The changes in horizontal displacement of the upper part of the mooring are on the order of 10% in extreme cases and 1% under typical conditions. Their effects on current measurements will usually be negligible. However, the related vertical displacements are on the order 100 to 10 m. Such vertical displacements may carry instruments to depth levels where currents and particularly thermocline temperatures are sufficiently different from the intended level to cause errors in the time series observations.
    Materialart: Article , PeerReviewed
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  • 13
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    Baroclinic Flow and Transient-Tracer Fields in the Canary–Cape Verde Basin (1986)
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 16 (5). pp. 814-826.
    Details
    Publikationsdatum: 2018-04-04
    Beschreibung: Simulated transient-tracer distributions (tritium, 3H3, freons) on the isopycnal horizons σ0=26.5 and 26.8 kg m−3 are presented for the East Atlantic, 10° −40°N. Tracer transport is modeled by employing a baroclinic flow field based on empirical data in a kinematic isopycnal advection-diffusion numerical model, in which winter convection is taken as the mechanism of communication with the ocean surface layer, and the isopycnal diffusivity is a free parameter. Diapucnic transport is ignored. The simulations employ time-dependent tracer boundary conditions, which are constructed on the basis of available observations. Simulations are compared to data obtained on a meridional section in 1981 (F/S Meteor, cruise 56/5). Best simulations were obtained by means of a subjective optimization procedure. On both levels, the observed distributions and the best simulated distributions agree well. The fact that the surface boundary conditions and interior distributions of the tracers are distinctly different leads us to the conclusion that our model provides a consistent description of upper main-thermocline ventilation and interior transport Surface-water densities in February are found to represent adequately the winter outcrop boundaries with an uncertainty of about ±300 km across. The required isopycnal diffusivity south of 29°N is 1700 m2 s−1, and 2900 m2 s−1 further north (+70/−40%). Interior transport is found to be predominantly advective. Advective ventilation across 30.5°N east of 33°W amounts to only 12% and 40% for the 26.5 and 26.8 horizons of the total ventilation rates reported by Sarmiento. The North Atlantic/South Atlantic Central Water boundary near 15°N is found to be predominantly determined by advection.
    Materialart: Article , PeerReviewed
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  • 14
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    Benthic nutrient regeneration processes in different sediment types of Kiel Bight (1986)
    Taylor & Francis
    In:  Ophelia, 26 . pp. 359-368.
    Details
    Publikationsdatum: 2019-02-27
    Beschreibung: Long-term investigations of pore-water ammonium concentrations and sediment oxygen uptake were carried out in three different sediment types along a slope in Kiel Bight. The inverse relation between mineralization rates and ammonium concentrations at the three stations is explained by the differences in the role of various mechanisms transporting nutrients out of the sediments. Direct water exchange due to turbulent or density driven processes, bioturbation and pumping activity of benthic macrofauna and molecular diffusion are involved to various extents in nutrient fluxes out of the sediments studied. The role of different sediment types in the interaction with the pelagic system is discussed in a conceptual framework of pelagic system functioning in Kiel Bight.
    Materialart: Article , PeerReviewed
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  • 15
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    Taxonomic reallocation of Cenozoic dinoflagellate cysts from Japan and the Bering sea (1986)
    Taylor & Francis
    In:  Palynology, 10 (1). pp. 235-241.
    Details
    Publikationsdatum: 2021-02-04
    Beschreibung: The publications of Matsuoka (1983) and Bujak (1984) on dinoflagellate cysts from the Neogene of Japan and the Paleogene‐Neogene of the Bering Sea‐northern North Pacific areas, respectively, resulted in the erection of two new species by each author which are synonymous. Impagidinium pacificum Bujak and Spiniferites ovatus Bujak are therefore designated junior synonyms of Impagidinium japonicum Matsuoka and Spiniferites hexatypicus Matsuoka. Another species, Spiniferites ovatus Matsuoka, does not occur in the material examined by Bujak. Specimens assigned by Matsuoka to Nematosphaeropsis labyrinthea and Tectatodinium pellitum are reassigned to Nematosphaeropsis lemniscata Bujak and Filisphaera filifera Bujak, respectively. The species Reticulatosphaera stellata Matsuoka, which Matsuoka designated the type species of his new genus Reticulatosphaera, is designated a subjective junior synonym of a species originally named by Benedek (1972) as Cleistosphaeridium actinocoronatum. C. actinocoronatum is transferred to Reticulatosphaera and becomes the type‐species of this genus. Specimens assigned to Areoligera senonensis Lejeune‐Carpentier sensu Gocht 1969 by Matsuoka (1974, 1983) and Tanyosphaeridium fusiform by Matsuoka (1974) are reattributed to Systematophora ancyrea and Distatodinium fusiforme (Matsuoka) comb, nov., respectively. Bujak also erected eight Eocene to Pleistocene concurrent‐range zones, two of which were named the I. pacificum and Spiniferites ovatus Zones. These are renamed the I. japonicum and 5. hexatypicus Zones, and the zonation is modified to extend the Trinovantedinium boreale Zone into the early Oligocene, and to restrict the S. hexatypicus Zone to the Miocene.
    Materialart: Article , PeerReviewed
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  • 16
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    Haliphron atlanticus Steenstrup (Cephalopoda, Octopoda) from the coast of Norway (1986)
    Taylor & Francis
    In:  Sarsia, 71 (1). pp. 35-40.
    Details
    Publikationsdatum: 2021-08-27
    Beschreibung: Morphological characteristics of two large females of Haliphron atlanticus STEENSTRUP (= Alloposus mollis VERRILL) are described and illustrated. The soft and gelatinous body, the shape of the mantle aperture, the formation of the funnel and adhesive apparatus, and the straplike septa connecting the mantle and funnel and containing the stellate ganglion are characteristic features of the species. One specimen, weighing 41 kg after fixation, was found dead near Bergen (60°14′ N, 5°16′ E) in May 1983. The other, weighing 25 kg after being frozen, was caught alive at 210 m off Vestvägöy in the Lofoten archipelago (68°20′ N. 14°14′ E) in November 1984. It was possibly feeding on the prawn, Pandalus borealis KRøYER. Both specimens had arms partly missing and web torn, but were otherwise well preserved. Previous records of H. atlanticus are confined to tropical and warm-temperate areas. The present findings represent the first records from north of 42° N.
    Materialart: Article , PeerReviewed
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  • 17
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    An annotated check-list of marine molluscs of the Norwegian coast and adjacent waters (1986)
    Taylor & Francis
    In:  Sarsia, 71 (2). pp. 73-145.
    Details
    Publikationsdatum: 2021-09-07
    Beschreibung: This check-list is a compilation of the marine molluscs recorded from Norway and the abyssal depths of the Norwegian Sea. Molluscs not recorded from the Norwegian fauna but found on the North Sea plateau, the British North Sea coast, the Swedish west coast, and in Danish waters are also included. Distributional data are provided for each species. Most commonly used synonyms are listed, together with type species for each accepted generic name. Systematical code numbers are included for easy retrieval of information. An alphabetical index of all generic names mentioned concludes the check-list. Recent taxonomic alterations and all distributional records are documented by literature references.
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