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Wyświetlanie 1-15 z 49
Tytuł:
Activities related to HIROMB and local model development in Finland
Autorzy:
Gästgifvars, M.
Powiązania:
https://bibliotekanauki.pl/articles/1920598.pdf
Data publikacji:
2000
Wydawca:
Instytut Morski w Gdańsku
Tematy:
development
coastal area
Opis:
Coastal area fine resolution models have been developed to enhance the operational and ecosystem modelling in the Gulf of Finland. A user inteiface has been developed for both the transport and ecosystem models which both utilise 3D precalculated flow fields. Also a user inteiface development for the chemical module has been ongoing in the year 2001. A two year project plan indicates the future activities related to the operational Helsinki-Espoo model development. The project includes development of system software, improvement of data communication links and troining workshops. A permanent flow measurement device and a new meteorological station, will be established to the Helsinki lighthouse and drift experiments arranged so that model validation can be continued.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 97-99
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activities related to HIROMB and local model development in Finland
Autorzy:
Gästgifvars, M.
Powiązania:
https://bibliotekanauki.pl/articles/972863.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
development
coastal area
Opis:
Coastal area fine resolution models have been developed to enhance the operational and ecosystem modelling in the Gulf of Finland. A user inteiface has been developed for both the transport and ecosystem models which both utilise 3D precalculated flow fields. Also a user inteiface development for the chemical module has been ongoing in the year 2001. A two year project plan indicates the future activities related to the operational Helsinki-Espoo model development. The project includes development of system software, improvement of data communication links and troining workshops. A permanent flow measurement device and a new meteorological station, will be established to the Helsinki lighthouse and drift experiments arranged so that model validation can be continued.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 97-99
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Status and diversity of avifauna in coastal areas of South Bengal, India
Autorzy:
Payra, Arajush
Mondal, Krishnendu
Mishra, Rabindra Kumar
Rout, Srustidhar
Powiązania:
https://bibliotekanauki.pl/articles/1179604.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bird
Coastal area
Diversity
Habitat
Status
Opis:
The status and diversity of avifauna was studied in coastal areas of South Bengal, India from January 2014 to June 2016. The entire survey was comprehensively carried out by walking along the fixed paths/trails, for documentation of avifauna. In total, 171 bird species representing 18 orders and 54 families were recorded. Depending on movement and seasonality of occurrence, birds were classified as resident, winter migrant and local migrant. Depending on the frequency of sightings, birds were classified as: abundant, common, occasional and rare. Out of the 171 bird species, 100 were resident, 51 were winter visitor and 20 was local migrants. The maximum similarity of birds were observed between village woodland and coastal forest and lowest similarity observed between Village woodland and Sea Shore. Among the total species observed, 9.94% species were abundant, 32.75% common, 40.94% occasional and 16.37% rare. Out of the 171 species bird species recorded in the study area, three species "near threatened"; and the remaining 168 species were "least concern", according to IUCN. The present study contributed the abundance of avifauna for the first time in the coastal region of South Bengal along-with their primary habitats and migratory status.
Źródło:
World Scientific News; 2017, 74; 209-237
2392-2192
Pojawia się w:
World Scientific News
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:
Application of Artificial Neural Network into the Water Level Modeling and Forecast
Autorzy:
Sztobryn, M.
Powiązania:
https://bibliotekanauki.pl/articles/116204.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
artificial neural network (ANN)
hydrography
coastal area
Opis:
The dangerous sea and river water level increase does not only destroy the human lives, but also generate the severe flooding in coastal areas. The rapidly changes in the direction and velocity of wind and associated with them sea level changes could be the severe threat for navigation, especially on the fairways of small fishery harbors located in the river mouth. There is the area of activity of two external forcing: storm surges and flood wave. The aim of the work was the description of an application of Artificial Neural Network (ANN) methodology into the water level forecast in the case study field in Swibno harbor located is located at 938.7 km of the Wisla River and at a distance of about 3 km up the mouth (Gulf of Gdansk ‐ Baltic Sea).
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 219-223
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary results of lidar based studies of the aerosol vertical distribution in the lower troposphere over urban coastal areas
Autorzy:
Halas, M.
Blaszczak, Z.
Grabowski, J.
Papayannis, A.
Zielinski, T.
Powiązania:
https://bibliotekanauki.pl/articles/48171.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
vertical profile
aerosol
urban area
lidar
troposphere
coastal area
Opis:
The paper reports the results of lidar measurements performed in the lower troposphere during several measurement sessions in Athens (Greece) in 2000. For the sake of comparison, results of a similar study performed in Kołobrzeg (Poland) in 2001 are also given. These data indicate that the exhaust gases produced by motor transportation in the cities resulted in the formation of an inversion layer. The rate of convection of the inversion layer depends on the intensity of sunlight, the strength of winds and the morphology of the land. The inversion layer reaches the highest altitudes in the middle of summer, lower in early and late summer and the lowest in autumn. Over the sea the inversion layer altitude extends to several meters, but on moving inland it rises to a fewh undred meters.
Źródło:
Oceanologia; 2004, 46, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climate change issues and implications for sustainable development in a coastal area of Nigeria
Autorzy:
Udofia, Eti-Ido
Wilcox, Rogers I.
Akadi, Anthony P.
Powiązania:
https://bibliotekanauki.pl/articles/1193865.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Climate Change
Coastal Area
Costal Area
Nigeria
Sustainable Development
Opis:
The Study is aimed to look at climate change issues and the implications it has on environment in a coastal area of Nigeria. Each effect of climate change is affecting sustained development in the area. Forty respondents were randomly selected for the study from four villages in the area. Questionnaires, personal observations and oral interviews were used to collect data. Data analysis was through descriptive statistics.The research has brought issues for further studies since it is exploratory in nature.
Źródło:
World Scientific News; 2015, 24; 43-55
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water-Borne Diseases and Their Challenges in the Coastal of Ampara District in Sri Lanka
Autorzy:
Ameer, M. L. Fowsul
Powiązania:
https://bibliotekanauki.pl/articles/1118154.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
coastal area
consumption
contamination
pathogens
water-borne diseases
Opis:
Water satisfies human needs in many ways. Without water, life is not possible in this planet. According to the estimation of the WHO, 4,000 children die every day from water-borne diseases and this condition is worst in developing and under-developed countries. Water-borne diseases are caused by the consumption of contaminated water. Indeed, it is the main agent of transference of the pathogens causing these diseases. The main objective of this paper is ‘to identify the water-borne diseases and their challenges and to suggest remedial measures to overcome the challenges in the study area’. Both primary and secondary data were used to conduct this study and the analysis of this study is tabulated clearly in the data analysis part. The coastal areas of Ampara District (Sainthamaruthu, Karaitivu, Maligaikadu Mawadipalli, Akkaraipattu, Irakkamam, Varipathanchenai, Addalaichenai, Palamunai, Oluvil and Nintavur) face a lot of challenges induced by water-borne diseases. Viruses, bacteria, parasites and protozoa are the main pathogens. Bacillary dysentery (shigellosis), cholera, other diarrheal diseases, hepatitis A and E and typhoid fever were identified as the most common diseases in these areas. The causes for the diseases are the contamination of water by improper drainage management, effluent contamination of water sources, over population and the lack of awareness among residents about water-borne diseases. According to the result of this study, controlling water contamination, constructing water purification systems, mending existing drainage systems, following instructions when constructing latrines, examining and remediating contaminated wells and providing awareness among residents are ways to attain the objectives.
Źródło:
World News of Natural Sciences; 2017, 9; 7-18
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chromium Accumulation by Avicennia alba Growing at Ecotourism Mangrove Forest in Surabaya, Indonesia
Autorzy:
Titah, Harmin Sulistiyaning
Pratikno, dan Herman
Powiązania:
https://bibliotekanauki.pl/articles/124450.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Avicennia alba
BCF
coastal area
chromium
mangrove forest
root
sediment
Opis:
The Ecotourism Mangrove Forest at Wonorejo in East Coast Surabaya area is one of large mangrove forests inside in the metropolitan city in Indonesia. There are many ecological values of the mangrove forest in most tropical countries such as sea fisheries, place of sea and coastal animals, sea and brackish water quality protecting the endangered mangrove coastlines and development of human life. The role of mangrove in increasing the sea and brackish water quality can be shown through many processes such as cycling of nutrients, particulate matter and some pollutants in water and sediment around the mangrove plants. One of the inorganic pollutants that can be removed by mangrove are heavy metals, such as chromium (Cr). The Wonorejo River is one of the rivers that receive the disposal of wastewater in Surabaya East Coast area. Large quantitites of wastewater from industries and households were released to this river. The concentration of Cr at the Wonorejo Estuary reached 0.0325 mg/L and 2.7761 mg/L in sediments. The purpose of this research was to determine the potency of Cr accumulation by Avicennia alba that was grown for ten years at Wonorejo Ecotourism Mangrove Forest. The sampling activities were conducted using a transect quadrat sampling method with a 10x10 m dimension. The sediment and mangrove root samples were extracted before being analysed using an atomic absorption spectrophotometer (AAS). The results showed that the Cr accumulation by roots of A. alba reached 25.4 ± 1.6 to 55.3 ± 1.1. The BCF value in A. alba were 0.32 ± 0.01 to 0.83 ± 0.5 with the concentration Cr in sediment were 60 ± 1.4 to 79.3 ± 1.1. A. alba showed potential as a moderate accumulator for Cr. In conclusion, A. alba can be considered for use in phyto-monitoring and phytoremediation of Cr in coastal areas.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 222-227
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upwelling session in Indonesia waters
Autorzy:
Purba, Noir P.
Khan, Alexander M. A.
Powiązania:
https://bibliotekanauki.pl/articles/1076677.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
coastal area
economic exclusive zone
periodic monsoon
satellite data
upwelling
Opis:
The aim of this research was to analyze monthly sea surface temperature (SST) and chlor-a satellite data for 16 years from 2003 in an area from south Java to north Papua. The results show that the temporal and spatial pattern of SST and chlor-a distribution strongly was related to the monsoonal pattern. The upwelling session starts from May and ends in the October, in the south-east monsoon season. The lowest SST (25-30 °C) and the highest chlor-a (2.23 mg/l) is found in August in the south-east monsoon season. In addition, the largest upwelling area occurs in July, and ranges within 790,221 km2 of size.
Źródło:
World News of Natural Sciences; 2019, 25; 72-83
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental study of hydraulic response of smooth submerged breakwaters to irregular waves
Autorzy:
Mahmoudof, S.M.
Hajivalie, F.
Powiązania:
https://bibliotekanauki.pl/articles/2078821.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
submerged breakwater
irregular wave
experimental study
transmission
reflection
coastal area
Opis:
This paper presents the results of a laboratory experiment on transmission, reflection, and dissipation of irregular waves over smooth impermeable submerged breakwaters. Experiments included 75 JONSWAP-based irregular waves with five different wave characteristics generated at three water depths in a 2D wave flume. The investigated breakwater sections were three rectangular breakwaters with different widths, a toothed rectangular breakwater, and a trapezoidal breakwater with a slope of 1:2. A new comprehensive dimensionless parameter (β) was proposed representing both wave hydrodynamic and breakwater geometry characteristics. This parameter could be employed as a suitable descriptive option to make an accurate estimate of the hydraulic performances of submerged breakwaters. The β parameter is composed of four conventional simple dimensionless variables. However, the results revealed that the relative submergence depth significantly affects the hydraulic responses of submerged breakwaters. The transmission, reflection and dissipation of waves show a logarithmic growth, a logarithmic reduction, and a quadratic decreasing trend against the increasing of β parameter, respectively. The verifications of results revealed the high efficiency of β parameter for data reported by Carevic et al. (2013) with R2 = 0.88 and high agreement with predictions made by Van der Meer et al. (2005) formulation with R2 = 0.93.
Źródło:
Oceanologia; 2021, 63, 4; 448-462
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Late Quaternary vegetational and environmental history of western tropical Africa - the eastern Benin Basin, Lagos, Nigeria
Autorzy:
Adeonipekun, P. A.
Adeniyi, T. A.
Mateawo, J.
Agbalaya, B.
Powiązania:
https://bibliotekanauki.pl/articles/184322.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
paleoclimate
paleoecology
paleovegetation
palynology
sedimentology
Lagos Coastal Area
Late Quaternary
Opis:
A palynological study of a 30 m borehole within the Akoka campus of the University of Lagos, Akoka, Nigeria revealed Late Quaternary paleo-vegetational, climatic and environmental changes. Sixteen samples at a regular interval of 2 m were subjected to standard palynological and sedimentological techniques. Six pollen zones representing six paleoclimatic phases within the Late Quaternary period were recognized. The age model is based on two radiocarbon dates (6 m: 5,495 ± 25 ¹⁴C yr and 12 m: 15,660 ± 40 ¹⁴C yr) and, by extrapolation, the sequence spans approximately the last 35,000 yr BP. The African maximum transgression and the African Humid Period (wet paleoclimate maximum) – the Nouaktchottian, and Pre-Nouaktchottian respectively – were recognized, while the Ogolian II (Erg II) was stratigraphically recognized and the Upper Inchirian extrapolated. Recovered diatom frustules with other proxies were employed for paleoclimatic and paleoecological deductions. Four hydrological cycles and three paleoecological settings were identified. Results from this work indicate the co-eval record of paleoclimatic events across Africa, suspected cooling during the African maximum transgression in Nigeria and the usefulness of coastal freshwater swamp sediments for paleoclimate studies.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 4; 277-291
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An integrated wave modelling framework for extreme and rare events for climate change in coastal areas – the case of Rethymno, Crete
Autorzy:
Tsoukala, V.K.
Chondros, M.
Kapelonis, Z.G.
Martzikos, N.
Lykou, A.
Belibassakis, K.
Makropoulos, C.
Powiązania:
https://bibliotekanauki.pl/articles/48719.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
coastal area
climate change
Crete
flooding
wave
storm
modelling
numerical model
Źródło:
Oceanologia; 2016, 58, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability of coastal water hydrodynamics in the Southern Baltic - hindcast modelling of an upwelling event along the Polish coast
Autorzy:
Jankowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/49140.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
variability
temperature
coastal water
hydrodynamics
numerical modelling
Baltic Sea
surface layer
hydrological condition
coastal area
Opis:
This paper presents the results of an attempt to reproduce, with the aid of a numerical circulation model, the hydrological conditions observed in the coastal area of the southern Baltic in September 1989. A large fall in surface layer seawater temperature was recorded in September 1989 at two coastal stations in the vicinity of Kołobrzeg and Władysławowo. This upwelling-like phenomenon was assumed to be related to the specific anemobaric situation in September 1989, however typical of this phenomenon to occur along the Polish Baltic coast (Malicki & Miętus 1994). A three-dimensional (3-D) σ-coordinate baroclinic model of the Baltic Sea, with a horizontal resolution of ∼5 km and 24 sigma-levels in the vertical, was applied to investigate water circulation and thermohaline variability. Hindcast numerical simulation showed that the model provided a good reproduction of the temporal history of the surface seawater temperature and the duration of the upwelling-like fall, but that the model results were underestimated. The maxima of this large fall in the surface layer temperature at both coastal stations are closely related to the phase of change of the upwelling-favourable wind direction to the opposite one. The results of simulation runs showed details of upwelling development due to wind field fluctuations in time and differences in shaping the temperature and current patterns in conjunction with the variations in topography and coastline features in some areas along the Polish coast. Two different hydrodynamic regimes of water movements along the coast resulting from topographical features (the Słupsk Bank) can be distinguished. From the model simulation the specific conditions for the occurrence and development of upwelling at the eastern end of the Polish coast (in the vicinity of Władysławowo) can be deduced.
Źródło:
Oceanologia; 2002, 44, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metals contamination and distribution of benthic foraminifera from the Red Sea coastal area, Jeddah, Saudi Arabia
Autorzy:
Youssef, M.
Powiązania:
https://bibliotekanauki.pl/articles/48421.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
benthic foraminifera
heavy metal
contamination
distribution
Red Sea
coastal area
Saudi Arabia
Źródło:
Oceanologia; 2015, 57, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 49

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