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Wyszukujesz frazę "Arctic environment" wg kryterium: Temat

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    Wyświetlanie 1-12 z 12
    Tytuł:
    The impact of a non-uniform land surface on the radiation environment over an Arctic fjord – a study with a 3D radiative transfer model for stratus clouds over the Hornsund fjord, Spitsbergen
    Autorzy:
    Rozwadowska, A.
    Gorecka, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/48474.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Monte Carlo model
    3D radiative transfer model
    solar radiation
    spatial variability
    Hornsund
    Spitsbergen
    Arctic fjord
    coastal environment
    climate change
    Źródło:
    Oceanologia; 2012, 54, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Svalbard as a study model of future High Arctic coastal environments in a warming world
    Autorzy:
    Piskozub, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/48795.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Svalbard Archipelago
    climate change
    Arctic area
    coastal area
    sea surface temperature
    Spitsbergen fjord
    water temperature
    sea ice
    cloud
    Arctic environment
    Opis:
    Svalbard archipelago, a high latitude area in a region undergoing rapid climate change, is relatively easily accessible for field research. This makes the fjords of Spitsbergen, its largest island, some of the best studied Arctic coastal areas. This paper aims at answering the question of how climatically diverse the fjords are, and how representative they are for the expected future Arctic diminishing range of seasonal sea-ice. This study uses a meteorological reanalysis, sea surface temperature climatology, and the results of a recent one-year meteorological campaign in Spitsbergen to determine the seasonal differences between different Spitsbergen fjords, as well as the sea water temperature and ice ranges around Svalbard in recent years. The results show that Spitsbergen fjords have diverse seasonal patterns of air temperature due to differences in the SST of the adjacent ocean, and different cloudiness. The sea water temperatures and ice concentrations around Svalbard in recent years are similar to what is expected most of the Arctic coastal areas in the second half of this century. This makes Spitsbergen a unique field study model of the conditions expected in future warmer High Arctic.
    Źródło:
    Oceanologia; 2017, 59, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quartz grain features in modern glacial and proglacial environments: A microscopicstudy from the Russell Glacier, southwest Greenland
    Autorzy:
    Kalińska-Nartiša, Edyta
    Lamsters, Kristaps
    Karušs, Jānis
    Krievāns, Māris
    Rečs, Agnis
    Meija, Raimonds
    Powiązania:
    https://bibliotekanauki.pl/articles/2042159.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Greenland
    modern glacial environment
    Quartz grains
    Scanning electron microscopy
    Źródło:
    Polish Polar Research; 2017, 38, 3; 265-289
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen
    Autorzy:
    Marciniak, Artur
    Osuch, Marzena
    Wawrzyniak, Tomasz
    Owoc, Bartosz
    Dobiński, Wojciech
    Glazer, Michał
    Majdański, Mariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/16538466.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Arctic
    Svalbard
    geophysical imaging
    periglacial environment
    glacial landforms
    Opis:
    This article presents the results of a geophysical survey from which detailed images of glacial and periglacial landforms and subsurface structures were obtained. Sediments and landforms on newly deglaciated terrain can be used to reconstruct the extent and character of glaciers in the past and add to the understanding of their response to climate and environmental changes. To derive spatial information from complex geomorphological terrain, joint interpretation of three non-intrusive geophysical methods were applied: Electrical Resistivity Tomography (ERT), Ground Penetrating Radar (GPR), and time-lapse Seismic Tomography. These were used to identify subsurface structures in the forefield of the retreating Hans Glacier in SW Spitsbergen, Svalbard. Three main zones were distinguished and described: outwash plain, terminal moraine from the last glacial maximum, and glacial forefield proximal to the glacier front. Geophysical profiles across these zones reveal information on glacio-fluvial sediment thickness and structure, ice thickness and structure, and bedrock topography. The freezing-thawing effect of the active layer has a strong and deep impact, as demonstrated by variations in P-wave velocity in the obtained outcomes. The results are discussed in the context of the current climate in Svalbard. This study provides a snapshot of ground parameters and the current state of the subsurface in southern Spitsbergen. The boundary between sediment-bedrock layers was estimated to be from 5 to 20 m in depth. It is the first such extensive description of periglacial structures in the forefield of the Hans Glacier, utilising the longest ERT profile (1500 m) in Svalbard together with deep GPR and precise seismic tomography.
    Źródło:
    Polish Polar Research; 2022, 43, 2; 101-123
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of environmental changes on physiology and development of polar vascular plant
    Autorzy:
    Gielwanowska, I.
    Pastorczyk, M.
    Kellmann-Sopyla, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/11964.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    environment change
    plant physiology
    plant development
    polar plant
    vascular plant
    Caryophyllaceae
    Poaceae
    morphology
    plant morphology
    ultrastructure
    organelle
    stress reaction
    seed development
    Arctic
    Antarctic
    Opis:
    Polar vascular plants native to the Arctic and the Antarctic geobotanical zone have been growing and reproducing effectively under difficult environmental conditions, colonizing frozen ground areas formerly covered by ice. Our macroscopic observations and microscopic studies conducted by means of a light microscope (LM) and transmission electron microscope (TEM) concerning the anatomical and ultrastructural observations of vegetative and generative tissue in Cerastium arcticum, Colobanthus quitensis, Silene involucrata, plants from Caryophyllaceae and Deschampsia antarctica, Poa annua and Poa arctica, from Poaceae family. In the studies, special attention was paid to plants coming from diversity habitats where stress factors operated with clearly different intensity. In all examinations plants, differences in anatomy were considerable. In Deschampsia antarctica the adaxial epidermis of hairgrass leaves from a humid microhabitat, bulliform cells differentiated. Mesophyll was composed of cells of irregular shapes and resembled aerenchyma. The ultrastructural observations of mesophyll in all plants showed tight adherence of chloroplasts, mitochondria and peroxisomes, surface deformations of these organelles and formation of characteristic outgrowths and pocket concavities filled with cytoplasm with vesicles and organelles by chloroplasts. In reproduction biology of examined Caryophyllaceae and Poaceae plants growing in natural conditions, in the Arctic and in the Antarctic, and in a greenhouse in Olsztyn showed that this plant develops two types of bisexual flowers. Almost all ovules developed and formed seeds with a completely differentiated embryo both under natural conditions in the Arctic and the Antarctic and in a greenhouse in Olsztyn.
    Źródło:
    Papers on Global Change; 2011, 18
    2300-8121
    1730-802X
    Pojawia się w:
    Papers on Global Change
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Górnictwo w Arktyce, problemy środowiskowe i ekologiczne na przykładzie N Skandynawii (Kvalsund, Norwegia, Monchegorsk, Rosja)
    Mining in the Arctic, environmental and ecological problems N Scandinavia as an example (Kvalsund, Norway, Monchegorsk, Russia)
    Autorzy:
    Huber, Miłosz
    Alenga, David
    Kamiński, Daniel
    Maciołek, Urszula
    Iakovleva, Olga
    Powiązania:
    https://bibliotekanauki.pl/articles/20247839.pdf
    Data publikacji:
    2023
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    górnictwo
    Arktyka
    środowisko
    zanieczyszczenie
    Kvalsund
    Monchegorsk
    mining
    Arctic
    environment
    pollution
    Opis:
    The Arctic region is aprospective areafor ore mining and urbanization progress. The areas of Europe located beyond the Arctic Circle have unique features of the natural environment. Conducting mining works in this place is associated with certain difficulties resulting from weather conditions (numerousrains, long winters, polar night) anddue to the high riskof permanent environmental pollution. An example of the specificity of arctic mining is Kvalsund in northern Norway, where there is a copper mine that is currently under development. Another example is the Monchegorsk region in Russia, which is currently no longer mining. Both of these places are associated with sulphide deposits of non-ferrous metals and the resulting consequences. The purpose of this text was to show the differences and similarities of these mining plants, andon this basis to demonstrate the complexity of the issues of exploitation and reclamation of mining areas in the Arctic.
    Źródło:
    Przegląd Geologiczny; 2023, 71, 5; 279-285
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic, phenotypic and environmental trends of conformation traits in arctic fox Alopex lagopus [L.]
    Autorzy:
    Wierzbicki, H
    Filistowicz, A.
    Przysiecki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2043152.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Polish farm
    environment trend
    Arctic fox
    Alopex lagopus
    population structure
    phenotypic trend
    conformation trait
    genetic trend
    fox
    Źródło:
    Journal of Applied Genetics; 2000, 41, 2; 113-122
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecosystem services of the cryogenic environments: identification, evaluation and monetisation - A review
    Autorzy:
    Abakumov, Evgeny
    Suleymanov, Azamat
    Guzov, Yuriy
    Titov, Victor
    Vashuk, Angelina
    Shestakova, Elena
    Fedorova, Irina
    Powiązania:
    https://bibliotekanauki.pl/articles/2073732.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    amenability
    Arctic
    cryogenic environment
    economic assessment
    ecosystem services
    monetisation
    Opis:
    The article discusses the valuation of ecosystem services in connection with the economic activity of the Russian Federation in the Arctic zone. It also considers the categories of ecosystem services in general and the assessment of ecosystem services in the Arctic in particular. The article also considers types of negative impacts on the Arctic ecosystems, their assessment, and investment risks existing in ecosystem services. It is shown that the application of the methodology and ecosystem services contributes to the adequate assessment and creation of a hierarchical classification of “usefulness” and “benefits” for society derived from the existence, use, and non-use of ecosystems. The concept of Arctic ecosystem services consists of three components: identification, monetisation, and ecological risk assessment. Identification, classification, and initial assessment, mainly at the qualitative level, allow us to determine and classify services for further improvement of life quality and regulation of socio-economic effects of environmental changes. Quantitative assessment is related to the identification of the degree of ecosystem service amenability. The example of the Arctic ecosystems shows that the possibility to assess and the accuracy of the assessment can be quite different and largely depends on the type of service. The analysis of possible ecosystem services and their relationship with the quality of life in the Russian Arctic indicates significant investment risks.
    Źródło:
    Journal of Water and Land Development; 2022, 52; 1--8
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecosystem maturation follows the warming of the Arctic fjords
    Autorzy:
    Weslawski, J.M.
    Buchholz, F.
    Gluchowska, M.
    Weydmann, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/48879.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    climate change
    biodiversity
    ecosystem
    maturation
    Arctic fjord
    Hornsund
    Kongsfjorden
    physical environment
    Opis:
    Two fjords in West Spitsbergen (Hornsund 77°N and Kongsfjorden 79°N) differ with regard to their exposure towards increasingly warm Atlantic water inflow. Hornsund remains in many respects cooler than Kongsfjorden (on average 2°C SST in summer) and is less influenced by warmer and more saline Atlantic waters. Reported changes in the physical environment (temperature rise, freshwater inflow, salinity drop, turbidity, fast-ice reduction, coastal change) are discussed in the context of biological observations in the pelagic and benthic realms with special reference to krill (Euphausiacea). We conclude that well-documented changes in the physical environment have had little effect on the fjord biota and that both organisms and their ecological functions in the fjords are well adapted to the scale of ongoing change. The observed changes fit the definition of ecosystem maturation, with greater diversity, a more complex food web and dispersed energy flow at the warmer site.
    Źródło:
    Oceanologia; 2017, 59, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity of the valley natural environment in the Arctic region, Ebbadalen in Olav V Land, central Spitsbergen
    Autorzy:
    Mizgajski, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2052999.pdf
    Data publikacji:
    1989
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Spitsbergen
    environment
    landscape
    Źródło:
    Polish Polar Research; 1989, 10, 3; 443-456
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Climate-related trends and meteorological conditions in the Porsanger fjord, Norway
    Autorzy:
    Cieszynska, A.
    Stramska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/48950.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    meteorological condition
    wind speed
    air temperature
    precipitation
    climate change
    seasonal variability
    Arctic environment
    Porsanger fjord
    Norway
    Źródło:
    Oceanologia; 2018, 60, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biodiversity of the Arctic Ocean in the face of climate change
    Autorzy:
    Weslawski, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11979.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    biodiversity
    Arctic Ocean
    climate change
    global climate change
    Arctic sea
    aquatic ecosystem
    Arctic environment
    sea water
    water temperature
    salinity level
    Opis:
    Global climate changes which has been observed over the recent years affects organisms occurring in the Arctic seas and the functioning of the whole maritime ecosystems there. The research note presents and briefly analyses the biological diversity of the Arctic Ocean and the most important factors which change the relations between organisms and the environment in the Arctic.
    Źródło:
    Papers on Global Change; 2011, 18
    2300-8121
    1730-802X
    Pojawia się w:
    Papers on Global Change
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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