Wyniki wyszukiwania

1

A granitoid xenolith from rhyodacites of Zalas near Krzeszowice

100%

Heflik W., Muszynski M.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1993

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tom 41

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nr 4

2

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On the buoyant sub-surface salinity maxima in the Gulf of Riga

84%

Liblik T., Skudra M., Lips U.

Oceanologia

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2017

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tom 59

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nr 2

Thermohaline structure in the Gulf of Riga (GoR) was investigated by a multiplatform measurement campaign in summer 2015. Stratification of the water column was mainly controlled by the temperature while salinity had only a minor contribution. Buoyant salinity maxima with variable strength were observed in the intermediate layer of the Gulf of Riga. The salinity maxima were likely formed by a simultaneous upwelling—downwelling event at the two opposite sides of the Irbe strait. The inflowing salty water did not reach the deeper (> 35 m) parts of the gulf and, therefore, the near-bottom layer of the gulf remained isolated throughout the summer. Thus, the lateral water exchange regime in the near bottom layer of the Gulf of Riga is more complicated than it was thought previously. We suggest that the occurrence of this type of water exchange resulting in a buoyant inflow and lack of lateral transport into the near-bottom layers might contribute to the rapid seasonal oxygen decline in the Gulf of Riga

3

Geophysical evaluation of magnetic data of Okenugbo area, Age - Iwoye, Southwestern Nigeria

84%

Oladunjoye H. T., Olasunkanmi N., Olaleye A. O.

International Letters of Natural Sciences

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2013

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tom 03

The results of a magnetic study of the Okenugbo Area of Ago-Iwoye, Southwestern Nigeria are presented for the evaluation of the geostructural settings in the area to determine the competency of the basement for building constructions. The study area lies within Longitude N - N and Latitude E and E in the basement complex of Nigeria. Three magnetic profiles were established for the evaluation and the magnetic anomaly map, the regional geology and its analytic signal amplitude helped in identifying the nature and depth of the magnetic sources in the study region. The magnetic residual values range from -2400 nT to +1800 nT. The area shows magnetic closures of various sizes at the Western part of the study area trending West with prominence at the center and distributed East-West which has been interpreted as fractured or faulted zones. The depth estimate revealed the apparent depth to the causative body from the surface and the basement depth range from 4.3 to 21.3 m which agrees with other literatures. The study has revealed that the area is generally competent for high rise structures and industrial site while the faulted/fractured zones are prospective better locations for hydrogeological purposes.

4

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

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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.

5

Sea water intrusions to the Lake Gardno

67%

Cieslinski R., Drwal J., Chlost I.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2009

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tom 13 part I

Lake Gardno, as the central object in the hydrographic structure, is under the influence of land and sea waters. This results in the situation where the lake together with its direct catchment forms a unique geoecosystem which differs from other inland reservoirs performing the role of local or regional recipients in hydrographic systems, in terms of the quality of water as well as the rate and dynamics of transformations occurring in it. This is an effect of overlapping influences of waters inflowing from the catchment and intrusions of sea waters. During intrusions, waters of higher salinity occur and remain during the greater part of the year in the whole water body of the lake, which is conditioned by the shape of the basin facilitating the penetration of salty waters. It was established that the water coming from intrusions remains for at least several days. There is also evidence from reconnaissance measurements that the retention is longer. The easiness of penetration and long retention period result in the fact that only periodically the desaltation effect of potamic waters leads to an almost complete desaltation of water in the whole basin of the lake Gardno.

6

Influence of natural and anthropogenic factors on quality of surface and ground waters in marsh area on the example of Beka Reserve

67%

Cieslinski R.

Roczniki Akademii Rolniczej w Poznaniu. Melioracje i Inżynieria Środowiska

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2004

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tom 25

35-42

Ograniczanie wyników

2 Oceanologia

1 Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

1 Bulletin of the Polish Academy of Sciences. Earth Sciences

1 International Letters of Natural Sciences

1 Roczniki Akademii Rolniczej w Poznaniu. Melioracje i Inżynieria Środowiska

2 Cieslinski R.

1 Chlost I.

1 Drwal J.

1 Heflik W.

1 Li C.

1 Liblik T.

1 Lips U.

1 Muszynski M.

1 Oladunjoye H. T.

1 Olaleye A. O.

1 Olasunkanmi N.

1 Pedersen O.-P.

1 Skudra M.

1 Tande K. S.

1 Zhou M.

1 2017

1 2013

1 2010

1 2009