Wyniki wyszukiwania

1

Influence of irrigation with saline water on the content of some minerals in vegetables

100%

Rumasz-Rudnicka E., Koszanski Z., Podsiadlo C.

Journal of Elementology

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2005

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tom 10

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nr 4 Suppl.1

88

2

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Impact of human-altered hydrographical setting on the copepod community structure in an extensive tropical estuary along the Southwest Coast of India

84%

Nagarathinam A., Retnamma J., Loganathan J., Singaram P., Arayillath A., Jose A. K.

Oceanologia

|

2021

|

tom 63

|

nr 1

3

On the possibility of convective overturning in the Slupsk Furrow overflow of the Baltic Sea

84%

Zhurbas V., Elken J., Paka V., Piechura J., Chubarenko I., Vali G., Golenko N., Shchuka S.

Oceanologia

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2011

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tom 53

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nr 3

Closely spaced CTD transects across the Słupsk Furrow displayed a ‘downward- bending’ of salinity contours below the salinity interface on the southern flank due to a transverse circulation in the saline water overflow. Numerical simulation of a gravity current in an idealized channel with geometry, dimensions and initial density stratification all much the same as in the Słupsk Furrow was applied to verify whether the downward-bending could be transformed into an inverted density stratification. Some arguments in favour of the possibility of convective overturning due to the differential transverse advection beneath the gravity current, brought on by the numerical simulations, are discussed.

4

Variation of the cold intermediate water in the Black Sea exit of the Strait of Istanbul (Bosphorus) and its transfer through the strait

84%

Altiok H., Sur H. I., Yuce H.

Oceanologia

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2012

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tom 54

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nr 2

The cold intermediate water (CIW, T<8◦C) entering the Strait of Istanbul and its variation along the strait have been studied by using monthly conductivitytemperature- depth (CTD) data sets collected during the period from 1996 to 2000. In the northern exit of the strait, CIW is located between the seasonal thermocline and Mediterranean water originating from the lower layer of the Sea of Marmara. The thickness of CIW decreases from April to October. In the Strait of Istanbul, CIW is observed as a layer of temperature <14◦C. The thickness of this modified cold intermediate water flowing southwards with the upper layer decreases, while its temperature increases along the strait due to mixing with adjacent water. In the southern exit of the strait, the modified cold intermediate water is observed during the period from May to October. If CIW exists in the Black Sea exit region of the strait, modified cold water is found in the Marmara exit region during the same period. The distribution of CIW in the Strait of Istanbul contributes to our understanding of the dynamics of the strait, especially in the summer months.

5

An attempt to determine the dynamics of waters in the region of interactiion of the Brazilian and Falkland Currents

84%

Majewicz A.

Oceanologia

|

1983

|

tom 14

6

Programme for complete utilization of saline mine water drained off into the Vistula River basin

84%

Chowaniec J., Swist K.

Archiwum Ochrony Środowiska

|

1995

|

nr 3-4

7

Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes

84%

Elken J., Malkki P., Alenius P., Stipa T.

Oceanologia

|

2006

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tom 48

|

nr S

The Northern Baltic Proper is a splitting area of the Baltic Sea saline water route towards the two terminal basins – the Gulf of Finland and the Western Gotland Basin. Large halocline variations (vertical isopycnal displacements of more than 20 m, intra-halocline current speeds above 20 cm s−1) appear during and following SW wind events, which rapidly increase the water storage in the Gulf of Finland and reverse the standard estuarine transport, causing an outflow in the lower layers. In the channel of variable topography, basin-scale barotropic flow pulses are converted into baroclinic mesoscale motions such as jet currents, sub-surface eddies and lowfrequency waves. The associated dynamics is analysed by the results from a special mesoscale experiment, routine observations and numerical modelling.

8

Distinctive features of water exchange across the Słupsk Sill (a full-scale experiment)

84%

Paka V., Golenko N., Korzh A.

Oceanologia

|

2006

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tom 48

|

nr S

The flows of brackish waters in the upper layer and saline waters in the lower layer meet above the Słupsk Sill, which makes this one of the most significant features of the Baltic Sea, controlling as it does the ventilation of the deep basins in its central region. Earlier high-resolution measurements using towed scanning probes conducted here for more than ten years had revealed the complexity and variability of the water dynamics in this area. Mapping surveys repeated in quick succession are needed to study the water exchange in such an area. A survey of this kind was attempted in October 2003 during the 57th cruise of the r/v ‘Professor Shtokman’. Three surveys were carried out in the areas of the Słupsk Sill, the eastern Bornholm Basin, and the western Słupsk Furrow by means of a scanning probe towed along closely-spaced transects. The water structure around the sill was different each time, despite the rather short time gaps between the surveys. As follows from the data analysis, during the first survey, the saline Bornholm waters flowed over the sill as an axially symmetrical jet and entrained the adjacent freshened cold waters of the intermediate layer. In ten days, this joint flow displaced to the southern flank of the sill and propagated in the Słupsk Furrow along its southern border, with the dense core of saline waters gradually moving over the bottom to the northern border. Concurrently, the contrary flow of the main volume of cold freshened waters, originating from northern areas and leaving the Baltic Sea, was pushed away from the southern wall of the furrow and blocked at a significant distance from the sill. In three days, the blocked waters forced their way through towards its northern flank. Just below these waters, waters of elevated salinity were found above the eastern slope of the sill at the depth of its ridge, while waters of a similar salinity occurred below the depth of the ridge above the western slope of the sill. There were no indications of intensive overflow in the central and southern areas of the sill. Accordingly, the return flow of Bornholm waters across the sill became possible.

9

Influence of saline water irrigation on the yield and some physiological processes of red beet

84%

Rumasz E., Koszanski Z., Biczak R., Rychter P.

Folia Universitatis Agriculturae Stetinensis. Agricultura

|

2002

|

tom 90

10

Variability in the saline water exchange between the Baltic and the Gulf of Gdańsk by the σ-coordinate model

84%

Jankowski A.

Oceanologia

|

2003

|

tom 45

|

nr 1

A three-dimensional baroclinic σ–coordinate model was applied to study the circulation and thermohaline variability in the coastal zone in the south-eastern Baltic Sea. The model is based on the Princeton Ocean Model code of Blumberg & Mellor (1987), known as POM, and has the horizontal resolution of ∼5 km and 24 σ-levels in the vertical. The hydrodynamic conditions and variability of water and salt exchange between the Gulf of Gdańsk and the Baltic Proper, and the renewal of water masses in the Gulf of Gdańsk due to atmospheric forcing are analyzed. The numerical simulations were performed with real atmospheric forcings as well as with homogeneous (spatially uniform) wind fields over the whole Baltic Sea. The numerical simulations showed that the atmospheric forcing (winds) can play a significant role in shaping the renewal of bottom saline waters in the Gulf of Gdańsk. Two regions of inflow/outflow of saline waters responsible for the salinity regime were located. The overall water exchange between the Gulf and the Baltic Proper as well as the exchange of saline bottom waters appear to be strongly dependent on wind conditions. The net flux of water of salinity >9 PSU is of the order of 48 000–100000 m3 s−1. SE, E, S and NE winds were found to exert the greatest influence on salinity conditions in the Gulf of Gdańsk. Estimates of saline (salinity >9 PSU) water residence time based on the model simulation yielded values from 46 days for SE winds to 153 days for NW winds.

11

Baroclinic Rossby radius of deformation in the Southern Baltic Sea

67%

Osinski R., Rak D., Walczowski W., Piechura J.

Oceanologia

|

2010

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tom 52

|

nr 3

417-429

The first baroclinic Rossby radius of deformation (R1) is a fundamental horizontal scale of mesoscale processes. This scale is important for planning both numerical modelling and study areas. R1 was computed on the basis of an 11-year series of high resolution CTD measurements collected during r/v ‘Oceania’ cruises. The data set covered the three main basins of the Baltic Proper: the Bornholm Basin (BB), the Słupsk Furrow (SF) and the Gdańsk Basin (GB). The smallest mean value of R1 was found in the Gdańsk Basin (5.2 km), the largest one in the Bornholm Deep (7.3 km). The seasonal variability of R1 is lower in the western basin than in the eastern one. The seasonal cycle of R1 may be broken by extreme events, e.g. main Baltic inflows (MBI) of saline water. The inflowing water rebuilds the vertical stratification in the southern Baltic Sea and dramatically changes the R1 values. The difference of R1 between a stagnation period and an inflow situation is shown on the basis of observations made during 2002–2003. The main inflow occurred in winter, after ten years of stagnation, and the very low values of R1 (about 4 km) changed to very high ones (more than 9 km). Analysis of stagnation and saltwater inflow events may throw light on the value of R1 in future climatic scenarios. The potential influence of climate change on Baltic Sea salinity, especially a decrease in MBI activity, may change the baroclinic Rossby radius of deformation and the mesoscale dynamics. Values of R1 are expected to be lower in the future climate than those measured nowadays.

12

Restructuring of a zooplankton community by perturbation from a wind-forced coastal jet

67%

Pedersen O.-P., Tande K. S., Li C., Zhou M.

Oceanologia

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2010

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tom 52

|

nr 3

473-497

The impact of transient wind events on an established zooplankton community was observed during a field survey in a coastal region off northern Norway in May 2002. A transient wind event induced a coastal jet/filament intrusion of warm, saline water into our survey area where a semi-permanent eddy was present. There was an abrupt change in zooplankton community structure within 4–7 days of the wind event, with a change in the size structure, an increase in lower size classes less than 1 mm in equivalent spherical diameter (ESD) and a decrease in larger size classes greater than 1.5 mm in ESD. The slope of zooplankton biovolume spectra changed from −0.6 to −0.8, consistent with the size shifting towards smaller size classes. This study shows that even well established zooplankton communities are susceptible to restructuring during transient wind events, and in particular when wind forcing induces horizontal currents or filaments.

13

Effect of mangrove forest structures on wave attenuation in coastal Vietnam

67%

Bao T. Q.

Oceanologia

|

2011

|

tom 53

|

nr 3

This paper analyses wave attenuation in coastal mangrove forests in Vietnam. Data from 32 mangrove plots of six species located in 2 coastal regions are used for this study. In each plot, mangrove forest structures and wave height at different cross-shore distances are measured. Wave height closely relates to cross- shore distances. 92 exponential regression equations are highly significant with R2 >0.95 and P val. <0.001. Wave height reduction depends on initial wave height, cross-shore distances, and mangrove forest structures. This relationship is used to define minimum mangrove band width for coastal protection from waves in Vietnam.

14

Distribution of migration [state] forms of microelements in the sediments of the ports of Klaipeda and Gdansk

67%

Pustelnikovas O., Dembska G., Szefer P., Radke B., Bolalek J.

Oceanological and Hydrobiological Studies

|

2007

|

tom 36

|

nr 4

129-149

15

Environmental changes in the central Baltic Sea during the past 1000 years: inferences from sedimentary records, hydrography and climate

67%

Leipe T., Dippner J. W., Hille S., Voss M., Christiansen C., Bartholdy J.

Oceanologia

|

2008

|

tom 50

|

nr 1

23-41

Short sediment cores from the eastern Gotland Basin were investigated using a multi-proxy approach in order to reconstruct the environmental conditions of the area during the past 1000 years. Sediment data and facies were discussed in relation to hydrographic features (salinity, oxygen) and climate change. During the medieval warm period (MWP), from about 900 to 1250 AD, the hydrographic and environmental conditions were similar to those of the present time (modern warm period, since about 1850): a temporally stable halocline, caused by regular saline water inflows from the North Sea, prevents vertical mixing and leads to bottom water anoxia and the deposition of laminated, organic-rich sapropels. During the period from about 1250 to 1850, referred to as the cold phase (including the Little Ice Age), the environmental conditions of the central Baltic Sea were distinctly different: the lower salinity, resulting from reduced North Sea water inflows, allowed vertical convection of the water column and long-term stable ventilation of the sea bed (oxic stage). Both the productivity of the planktonic ecosystem as well as the preservation of organic matter in the sediments improved during the warm periods. The anthropogenic impact can be identified within the recent laminated sequence by a temporal reconstruction of pollutant deposition. Our findings imply a climate-change driven shift in the environmental conditions and the ecosystem of the Baltic from the north to the south and back to the north.

16

Computation of energy for diapycnal mixing in the Baltic Sea due to internal wave drag acting on wind-driven barotropic currents

67%

Nohr C., Gustafsson B. G.

Oceanologia

|

2009

|

tom 51

|

nr 4

The pathways of energy supply for mixing the deep waters of the Baltic Sea is largely unknown. In this paper, a parameterization of the internal wave drag forces on barotropic motion is developed and implemented into a two-dimensional shallow water model of the Baltic Sea. The model is validated against observed sea levels. The dissipation of barotropic motion by internal wave drag that is quantified from the model results show that breaking internal waves generated by wind forced barotropic motions can contribute significantly to diapycnal mixing in the deep water of the Baltic Sea.

17

Beetles [Coleoptera] of saline waters from 'Bogdanka' stone coal mine [South-Eastern Poland]

67%

Kowalik W., Buczynski P.

Acta Agrophysica

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2003

|

tom 01

|

nr 1[86]

18

Macrozoobenthos of the Gdansk, Gotland and Bornholm Basins in 1978-1993

67%

Osowiecki A., Warzocha J.

Oceanological Studies

|

1996

|

tom 25

|

nr 1-2

19

On variability of mineral composition of water in Roztoka Odrzanska [Odra River mouth, Poland]

67%

Poleszczuk G.

Oceanological Studies

|

1996

|

tom 25

|

nr 3

20

Influence of salinity on growth and organic compounds content of carrot (Daucus carota L.)

59%

Shiyab S., Al-Qarallah B., Akash M.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2019

|

tom 18

|

nr 6

Carrot production of valuable carotenes, carbohydrate and protein are hindered by elevated salinity levels in many parts of the world. To assess this problem, germination and growth of two carrot cultivars (Daucus carota cvs Jordan and Napoli) were studied in vivo and in vitro under different salt stress concentrations (0, 75, and 150 mM NaCl). Seeds were directly or gradually exposed to these salt concentrations. With elevated salinity levels, significant reductions in growth parameters (dry shoot weight, fresh shoot weight, shoot length, root length, and root number) were observed. Also, significant difference in germination percentage was observed at 150 mM NaCl in both cultivars when compared with control treatment (90% germination percentage in Napoli and 71% in Jordan cultivar). Growth rate, tolerant index, and relative water content (RWC) declined as salinity increased. The 150 mM NaCl salinity treatment significantly reduced the shoot chlorophyll and protein content, but increased carbohydrate content. Lesser impairment by the gradual exposure of seedling to salinity provides an opportunity to study the acquirement of salt tolerance.

Ograniczanie wyników

Influence of irrigation with saline water on the content of some minerals in vegetables

Impact of human-altered hydrographical setting on the copepod community structure in an extensive tropical estuary along the Southwest Coast of India

On the possibility of convective overturning in the Slupsk Furrow overflow of the Baltic Sea

Variation of the cold intermediate water in the Black Sea exit of the Strait of Istanbul (Bosphorus) and its transfer through the strait

An attempt to determine the dynamics of waters in the region of interactiion of the Brazilian and Falkland Currents

Programme for complete utilization of saline mine water drained off into the Vistula River basin

Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes

Distinctive features of water exchange across the Słupsk Sill (a full-scale experiment)

Influence of saline water irrigation on the yield and some physiological processes of red beet

Variability in the saline water exchange between the Baltic and the Gulf of Gdańsk by the σ-coordinate model

Baroclinic Rossby radius of deformation in the Southern Baltic Sea

Restructuring of a zooplankton community by perturbation from a wind-forced coastal jet

Effect of mangrove forest structures on wave attenuation in coastal Vietnam

Distribution of migration [state] forms of microelements in the sediments of the ports of Klaipeda and Gdansk

Environmental changes in the central Baltic Sea during the past 1000 years: inferences from sedimentary records, hydrography and climate

Computation of energy for diapycnal mixing in the Baltic Sea due to internal wave drag acting on wind-driven barotropic currents

Beetles [Coleoptera] of saline waters from 'Bogdanka' stone coal mine [South-Eastern Poland]

Macrozoobenthos of the Gdansk, Gotland and Bornholm Basins in 1978-1993

On variability of mineral composition of water in Roztoka Odrzanska [Odra River mouth, Poland]

Influence of salinity on growth and organic compounds content of carrot (Daucus carota L.)