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Wyświetlanie 1-15 z 48
Tytuł:
The changing North Sea: knowledge, speculation and new challenges
Autorzy:
Sundermann, J.
Powiązania:
https://bibliotekanauki.pl/articles/47868.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
knowledge
global change
North Sea Research project
new challenge
modelling
speculation
North Sea
Opis:
Synthesis and New Conception of North Sea Research (SYCON) is the title of a German project carried out from 1998–2000 under the leadership of Hamburg University1. It was accompanied by an international advisory board and covered North Sea issues as well as the general challenges to shelf sea research and sustainable management under global change. Particular emphasis was placed on the interdisciplinary analysis of comprehensive areas of knowledge: the data situation, understanding of processes, model development, instruments and methods, understanding of the system. Based on this, perspectives for future North Sea research were developed. The project produced a synthesis report, eleven monodisciplinary reports and an illustrated brochure for the general public (see Annex 1, this paper, p. 258).
Źródło:
Oceanologia; 2003, 45, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New challenges for North Sea research - 20 years after FLEX76 (Summary, results and conclusions of the International Symposium)
Autorzy:
Sundermann, J.
Powiązania:
https://bibliotekanauki.pl/articles/48358.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
research programme
symposium
North Sea
coastal area
Opis:
The present state of North Sea research was assessed and examined at an International Symposium in Hamburg. Specific attention was devoted to the issues of external forcing, internal dynamics, and new methods and experiments. In the concluding discussion Grand Challenges for North Sea research were formulated.
Źródło:
Oceanologia; 2000, 42, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transparency of the North Sea and Baltic Sea - a Secchi depth data mining study
Autorzy:
Aarup, T.
Powiązania:
https://bibliotekanauki.pl/articles/48891.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Kattegat
data archaeology
Baltic Sea
North Sea
Skagerrak
Secchi depth
Opis:
This paper presents the results of a Secchi depth data mining study for the North Sea – Baltic Sea region. 40,829 measurements of Secchi depth were compiled from the area as a result of this study. 4.3% of the observations were found in the international data centers [ICES Oceanographic Data Center in Denmark and the World Ocean Data Center A (WDC–A) in the USA], while 95.7% of the data was provided by individuals and ocean research institutions from the surrounding North Sea and Baltic Sea countries. Inquiries made at the World Ocean Data Center B (WDC–B) in Russia suggested that there could be significant additional holdings in that archive but, unfortunately, no data could be made available. The earliest Secchi depth measurement retrieved in this study dates back to 1902 for the Baltic Sea, while the bulk of the measurements were gathered after 1970. The spatial distribution of Secchi depth measurements in the North Sea is very uneven with surprisingly large sampling gaps in the Western North Sea. Quarterly and annual Secchi depth maps with a 0.5◦×0.5◦ spatial resolution are provided for the transition area between the North Sea and the Baltic Sea (4◦E–16◦E, 53◦N–60◦N).
Źródło:
Oceanologia; 2002, 44, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Oligocene brachiopods from the rocky-shore deposits at Mammendorf, central Germany
Autorzy:
Bitner, Maria Aleksandra
Müller, Arnold
Powiązania:
https://bibliotekanauki.pl/articles/2133937.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Brachiopoda
Early Oligocene
Rupelian
predation
North Sea Basin
Opis:
Thirteen species, belonging to eleven genera, i.e., Discinisca Dall, Novocrania Lee and Brunton, Lacazella Munier-Chalmas, Pliothyrina van Roy, Terebratulina d’Orbigny, Megathiris d’Orbigny, Argyrotheca Dall, Bronnothyris Popiel-Barczyk and Smirnova, Joania Álvarez, Brunton and Long, Platidia Costa and Megerlia King, have been identified in the lower Oligocene rocky-shore deposits at Mammendorf, central Germany. The occurrence of the species Discinisca fallens (Wood), Argyrotheca bitnerae Dulai and Megerlia truncata (Linnaeus) extends their stratigraphic range back to the early Oligocene. The affinity to the early Oligocene brachiopod fauna of the Mainz Basin is noted.
Źródło:
Annales Societatis Geologorum Poloniae; 2022, 92, 1; 87--107
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new Beneziphius beaked whale from the ocean floor off Galicia, Spain and biostratigraphic reassessment of the type species
Autorzy:
MIJÁN, ISMAEL
LOUWYE, STEPHEN
LAMBERT, OLIVIER
Powiązania:
https://bibliotekanauki.pl/articles/945284.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
mammalia
cetacea
ziphiidae
miocene
north atlantic
north sea
iberian peninsula
Opis:
Although the fossil record of beaked whales (Cetacea, Odontoceti, Ziphiidae) is continuously improving, the geological age of new taxa is often poorly constrained. Based on a partial cranium from deep seafloor deposits off Galicia, Spain, we describe a new species of the stem beaked whale genus Beneziphius, B. cetariensis sp. nov. The latter differs from the type species B. brevirostris in the larger size, the rostrum being proportionally longer, the premaxillae being longer than the maxillae at the apex of the rostrum, the left premaxillary sac fossa being transversely concave, and the ascending process of the premaxilla reaching the vertical. Considering that the stratigraphic context of deep-sea deposits off the Iberian Peninsula is not precisely known, we provisionally propose an extended, middle Miocene to early Pliocene interval for the geological age of B. cetariensis. Nonetheless, the palynological analysis of sediment sampled from cavities in the cranium of the holotype of B. brevirostris, discovered during the second part of the nineteenth century in inland deposits of Antwerp (north of Belgium), yield an early to mid-Serravallian age (13.2–12.8 Ma, late middle Miocene). B. brevirostris is thus the oldest described species of the “Messapicetus clade”, a large clade of stem ziphiids in which most species are dated from the late Miocene. The description of the Galician species B. cetariensis broadens the biogeographic distribution of Beneziphius and confirms the strong ziphiid faunal affinities between the eastern coast of the North Atlantic and the southern margin of the North Sea Basin.
Źródło:
Acta Palaeontologica Polonica; 2017, 62, 1; 211-220
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Addendum to “Sea spray aerosol flux estimation based on long-term variation of wave statistics”: estimation based on long-term variation of wind statistics
Autorzy:
Myrhaug, D.
Wang, H.
Holmedal, L.E.
Powiązania:
https://bibliotekanauki.pl/articles/48948.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
sea spray
aerosol flux
wind speed
long-term variation
North Sea
Źródło:
Oceanologia; 2016, 58, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Governance to Support Multi-use Platforms at Sea: Recommendations from Discourse Analysis
Autorzy:
Van Den Burg, Sander
Rammelt, Thomas
Stuiver, Marian
Powiązania:
https://bibliotekanauki.pl/articles/2015889.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
North Sea
discourse analysis
multifunctional use
governance
multi-use
platforms at sea
Opis:
There is growing focus on multi-functional use of the marine environment. The solution presented is to combine different economic activities in ‘multi-use platforms at sea’ (MUPS). An expanding body of literature focusses on the economic, technical or social challenges that follow from combining these different functions at sea. Current Dutch policy sees MUPS as a promising way to make the most out of scarce space available but present rules and regulations not supportive of MUPS. To find the right mode of governance for developing MUPS one needs a discourse coalition with a shared definition of (1) the problem tackled, (2) the solution it brings, (3) the solutions envisioned (including design and user functions) and (4) the role of various actors in bringing about these solutions. In this article we present a discourse analysis of the North Sea on the governance of MUPS. It shows that there is no single shared discourse but that there are contesting views on what MUPS are or should be. Although some convergence of discourse takes place, the question whose problem is solved by MUPS remains unanswered: do they solve public problems such as nature conservation and spatial planning or are MUPS the solution to high Operation and Maintenance costs? This hampers the development of multi-use platforms at sea with neither public nor private actors willing to take the lead.
Źródło:
Roczniki Socjologii Morskiej; 2015, 24; 35-46
0860-6552
Pojawia się w:
Roczniki Socjologii Morskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Out of the Pacific: A second fossil porpoise from the Pliocene of the North Sea Basin
Autorzy:
Colpaert, W.
Bosselaers, M.
Lambert, O.
Powiązania:
https://bibliotekanauki.pl/articles/945604.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Mammalia
Cetacea
Odontoceti
Phocoenidae
Pliocene
Belgium
fossil
North Sea Basin
Opis:
Although modern porpoises (Phocoenidae, Odontoceti, Cetacea) occupy most oceanic regions of the world, their fossil record outside the Pacific Ocean remains extremely scarce. Based on a partial skull from lower Pliocene layers (Kattendijk Formation, Zanclean, 5–4.4 Ma) of the Antwerp harbour, a new genus and species of fossil phocoenid, Brabocetus gigaseorum gen. et sp. nov., is described. The new taxon is diagnosed by a unique combination of characters including an anterolateraly widely-open antorbital notch, the anteromedial sulcus being shorter than the posteromedial sulcus, the frontal boss being longer than wide, pronounced asymmetry of the vertex, and the possible presence of an additional longitudinal sulcus across the premaxillary eminence. The phylogenetic analysis indicates that B. gigaseorum is not closely related to extant phocoenids; it is included in a clade comprising most north-west Pacific fossil species, two north-east Pacific fossil species, and the only previously described North Sea fossil species Septemtriocetus bosselaersi. Considering the paleobiogeographic distribution of phocoenids, an early Pliocene arrival from the North Pacific to the North Sea may be correlated to the early opening of the Bering Strait and migration via the Arctic. The presence of S. bosselaersi in younger deposits (Piacenzian) of the southern margin of the North Sea Basin could be the result of either a second dispersal event, or of local speciation in the North Sea, whereas an additional trans-Arctic migration from the North Pacific lead to the present occupation of the North Atlantic and North Sea by the phylogenetically distantly related harbor porpoise Phocoena phocoena.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 1; 1-10
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of medium-scale morphodynamics - PROMORPH
Autorzy:
Hoyme, H.
Zielke, W.
Powiązania:
https://bibliotekanauki.pl/articles/241030.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
medium scale morphodynamics
German North Sea coast
qualitative morphodynamic modelling
Opis:
This paper deals with medium scale morphodynamics at the German North Sea coast. The future work of this project, so called PROMORPH, as well as first results will be shown. The important part of measurement campaigns and the already developed database to ensure the data exchange will be presented. Furthermare the work on the development of the modeIs and their coupling will be shown. Finally same results of the qualitative morphodynamic modelling are described.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 2; 7-16
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomy and palaeobiogeography of the Cenozoic Euro-Mediterranean rissoid gastropod Galeodinopsis and its relationship with close genera
Autorzy:
Garilli, V.
Parrinello, D.
Powiązania:
https://bibliotekanauki.pl/articles/945804.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
gastropoda
rissoidae
taxonomy
palaeogeography
biogeography
cenozoic
north sea
atlantic connection
europe
Opis:
The investigation of the Late Paleogene to Late Neogene species of rissoid gastropod Galeodinopsis in the Euro-Mediterranean area has supported the hypothesis that this genus is an intermediate form between two well-known rissoids, Alvinia and Manzonia. We recognized four species of Galeodinopsis: G. biangulata, G. germanica sp. nov., G. semperi (new name for Rissoa duboisii), and G. tiberiana. The oldest (very Late Eocene/Oligocene) representatives of Galeodinopsis, G. biangulata, and G. semperi, share similar shell shape and microsculpture with Alvinia. This suggests that Galeodinopsis originated from some Eocene species related to Alvinia. The new species represents the first occurrence within Galeodinopsis of a combination of characters very close to those of Manzonia, above all the typical pitted microsculpture. We hypothesize that Manzonia evolved from Galeodinopsis rather than from the genera Alvania or Alvinia, as previously supposed. Galeodinopsis originated during the very Late Eocene/Oligocene in the North Sea Basin. Afterwards it underwent a strong southward shift to the mid-high east Atlantic and the Mediterranean area, during the Mio-Pliocene, and to the Recent tropical eastern Atlantic coasts, where the type species G. tiberiana still lives. The shift likely was due to a combination of climate cooling and palaeogeographical changes. The distribution of G. biangulata suggests that connections between the North Sea Basin and the Atlantic domain opened through the Channel area at least during the Early Oligocene, earlier than indicated previously. The distribution of Manzonia moulinsi supports the idea of a southern connection to the Atlantic Aquitaine Basin via the Rhine Graben during the Late Oligocene. From a palaeoecological point of view, Galeodinopsis includes warm species with planktotrophic larval development that are typical of the shelf environment in fully marine conditions.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 2; 379-406
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deposition of organic matter and particulate nitrogen and phosphorus at the North Sea - Baltic Sea transition - a GIS study
Autorzy:
Jansen, D.L.
Lundqvist, D.P.
Christiansen, C.
Lund-Hansen, L.C.
Balstrom, T.
Leipe, T.
Powiązania:
https://bibliotekanauki.pl/articles/48457.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
organic matter
nutrient
deposition
nitrogen
Baltic Sea
sediment
phosphorus
North Sea
Geographic Information System
Opis:
A GIS (Geographical Information System) based study on deposition in the North Sea – Baltic Sea transition area has been carried out. The study is based on (i) a digital bathymetry model, (ii) 93 available 210Pb/137Cs sedimentation rate estimations, (iii) grain-size distributions, organic matter, C, N and P content of 64 top 1 cm sediment samples from the study area, and (iv) GIS-based modelling of resuspension potentials based on wind statistics. With the use of regression statistics on depth, resuspension potential and sediment characteristics, results are extrapolated area-wide from the 64 sampling positions. The area is divided into sediment types and classified as accumulation or erosion/transport bottoms. Model results show good agreement with existing maps of sediment distributions, indicating that the sediment distribution is governed to a large extent by windinduced waves. Correlations of sediment types, their deposition rates and their N and P contents were used to estimate spatial deposition rates. In all, the yearly deposition in the study area amounts to 2.8 million tons of organic matter, 0.14 million tons of total nitrogen, and 0.035 million tons of total phosphorus. Correlations of sediment types and dry bulk densities were used to infer spatial inventories of organic matter and total nitrogen and phosphorus in the top 1 cm of the sediments. A total of 100 million tons of organic matter, 4 million tons of total nitrogen, and 0.019 million tons of total phosphorus are contained in the top 1 cm of the sediments in the study area. In general, the deep parts of the study area with low resuspension potentials act as sinks for the fine-grained sediments and their associated particulate nutrients.
Źródło:
Oceanologia; 2003, 45, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First record of brown colouration of Atlantic cod (Gadus morhua, L.) from the North Sea
Autorzy:
Rybczyk, A.
Czerniejewski, P.
Rokicka-Praxmajer, J.
Powiązania:
https://bibliotekanauki.pl/articles/47816.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Atlantic cod
Gadus morhua
brown colouration
skin colour
coastal zone
North Sea
Źródło:
Oceanologia; 2014, 56, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stokes transport in layers in the water column based on long-term wind statistics
Autorzy:
Myrhaug, D.
Wang, H.
Holmedal, L.R.
Powiązania:
https://bibliotekanauki.pl/articles/48704.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
surface gravity wave
water column
water transport velocity
wind
Stokes transport
North Sea
North Atlantic
Źródło:
Oceanologia; 2018, 60, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response patterns of phytoplankton growth to variations in resuspension in the German Bight revealed by daily MERIS data in 2003 and 2004
Autorzy:
Su, J.
Tian, T.
Krasemann, H.
Schartau, M.
Wirtz, K.
Powiązania:
https://bibliotekanauki.pl/articles/48702.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
chlorophyll a
phytoplankton production
spatial pattern
coastal sea water
German Bight
North Sea
MERIS data
photosynthesis
Źródło:
Oceanologia; 2015, 57, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal variability in the Baltic Sea level
Autorzy:
Stramska, M.
Kowalewska-Kalkowska, H.
Swirgon, M.
Powiązania:
https://bibliotekanauki.pl/articles/48431.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
seasonal variability
Baltic Sea
sea level
standard deviation
seasonal cycle
North Sea
satellite altimetry
spatial resolution
temporal resolution
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 48

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