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    Wyświetlanie 1-10 z 10
    Tytuł:
    Zimowe ekstrema termiczne w Polsce i ich cyrkulacyjne uwarunkowania
    Winter thermal extremes in Poland and their circulation conditions
    Autorzy:
    Tomczyk, Arkadiusz M.
    Miś, Filip
    Powiązania:
    https://bibliotekanauki.pl/articles/43349045.pdf
    Data publikacji:
    2022
    Wydawca:
    Poznańskie Towarzystwo Przyjaciół Nauk
    Tematy:
    air temperature
    warm days
    NOA
    SCAND
    winter
    Polska
    Opis:
    The study’s objective was to determine the spatial and temporal variability of occurrence of extremely warm days in winter in Poland in 1966/67–2020/21, and to determine the effect of atmospheric circulation on their occurrence. An extremely warm day is defined as a day with a maximum daily air temperature equal to or higher than the value of the 95. percentile. The effect of atmospheric circulation on the occurrence of the analyzed days was determined on the basis on two teleconnection patterns, namely the North Atlantic Oscillation (NAO) and Scandinavia (SCAND). The progressing warming translated into increasingly frequent occurrence of extremely warm days. In terms of the abundance of such days, the following winters stood out in the entire multiannual period: 1989/90, 2015/16, 2006/07, and 2001/02.
    Źródło:
    Badania Fizjograficzne Seria A - Geografia Fizyczna; 2022, 13 (73); 193-205
    2081-6014
    Pojawia się w:
    Badania Fizjograficzne Seria A - Geografia Fizyczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Warm winter and cold summer spells in Spitsbergen and their circulation conditions
    Autorzy:
    Tomczyk, Arkadiusz M.
    Łupikasza, Ewa B.
    Kendzierski, Sebastian
    Powiązania:
    https://bibliotekanauki.pl/articles/2041846.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Svalbard
    thermal spells
    climate change
    atmospheric circulation
    Źródło:
    Polish Polar Research; 2019, 40, 4; 339-359
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal Conditions Relative to Atmospheric Circulation in the Christmas Period in Poland
    Autorzy:
    Tomczyk, Arkadiusz M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1052725.pdf
    Data publikacji:
    2016-03-15
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    climate change
    air temperature
    Christmas
    Polska
    Opis:
    The main objective of this article was to determine thermal conditions in the Christmas period and the impact of atmospheric circulation on their formation. The article is based on data on the mean daily air temperature for 16 stations in Poland for the 1966-2014 multiannual period. In this period, no statistically significant changes of air temperature were observed, neither in December, nor the Christmas period. The occurrence of averagely warmer holidays was associated with the inflow of maritime polar air masses from the western sector, while colder holidays occurred with the inflow of continental polar air masses from the eastern sector.
    Źródło:
    Quaestiones Geographicae; 2016, 35, 1; 47-56
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential Contour Ensembles
    Autorzy:
    Tomczyk, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1373679.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    active contours
    classifier ensembles
    information fusion
    potential contours
    Opis:
    In the paper a contour ensemble image segmentation concept is presented. It bases on the previously observed relationship between contours and classifiers. Because of the specificity of the active contour segmentation the method requires a special procedure to obtain ensemble members with desired properties. In this work it is achieved by early stopping of randomized optimization algorithm. The results of the method are illustrated with a practical problem of heart ventricle segmentation by means of active potential contours. Automatically found contours may be of use in a process of pulmonary embolism diagnosis.
    Źródło:
    Schedae Informaticae; 2015, 24; 113-121
    0860-0295
    2083-8476
    Pojawia się w:
    Schedae Informaticae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    PERIOD OF INTENSE VEGETATION IN POLAND IN THE YEARS 1966–2015
    Autorzy:
    Tomczyk, Arkadiusz M.
    Szyga–Pluta, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/943785.pdf
    Data publikacji:
    2018
    Wydawca:
    Poznańskie Towarzystwo Przyjaciół Nauk
    Tematy:
    period of intense vegetation
    climate changes
    Polska
    Opis:
    The purpose of this paper was to determine long-range and spatial variability of the start and end dates of a period of intense vegetation in Poland in 1966–2015. The article is based on average monthly air temperature values acquired for 20 Polish stations for 1966–2015, made available by the Institute of Meteorology and Water Management – the National Research Institute. Based on the obtained data, the dates of the beginning and end of the intense vegetation period were determined. In this study, the intense vegetation period was defined as one with an average daily air temperature ≥10°C. The mathematical formulas proposed by Gumiński (1948) were used to determine the dates of the beginning and end of the period. A period of intense vegetation in Poland in the years 1966–2015 has extended. The dates of the beginning of the period of intense vegetation changed in the latitudinal system from the south to the north while the intensity of changes in the date of the beginning in the studied area was characterized by longitudinal distribution – the most prominent in the west of Poland. The end of the intense vegetation period occurs earliest in the north-east of Poland, and latest in the west and the south. The end date changes were less significant than the start date changes. The length of the intense vegetation period ranges from the north-east to the south-west of Poland, and the most dramatic changes occurred in the west and the south-east of Poland.
    Źródło:
    Badania Fizjograficzne Seria A - Geografia Fizyczna; 2018, 9(69); 239-248
    2081-6014
    Pojawia się w:
    Badania Fizjograficzne Seria A - Geografia Fizyczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Patroni jednostek Wojska Polskiego. Cz. 2
    Autorzy:
    Cieślik, Arkadiusz.
    Tomczyk, Jerzy (historia).
    Data publikacji:
    2005
    Wydawca:
    Warszawa
    Tematy:
    Sznajde, Franciszek (1790-1850)
    Powstanie listopadowe (1830-1831)
    Patroni jednostek wojskowych
    Żandarmeria wojskowa
    Biografia
    Opis:
    S. 95-97: Generał Brygady Franciszek Sznajde. Patron Mazowieckiego Oddziału Żandarmerii Wojskowej Garnizonu Stołecznego w Warszawie.
    Dostawca treści:
    Bibliografia CBW
    Książka
    Tytuł:
    Impact of atmospheric circulation on the occurrence of very strong and extreme cold stress in Poland
    Autorzy:
    Owczarek, Małgorzata
    Tomczyk, Arkadiusz M.
    Powiązania:
    https://bibliotekanauki.pl/articles/15804893.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    bioclimatology
    UTCI
    atmospheric circulation
    cold stress
    winter
    Polska
    Opis:
    The primary objective of the study was the determination of the spatial and multiannual variability of occurrence of days with very strong and extreme cold stress in Poland according to the Universal Thermal Climate Index (UTCI), as well as determination of baric conditions favouring their occurrence. The study was based on data from the years 1966/67 to 2018/19 from the Institute of Meteorology and Water Management – National Research Institute and National Centre for Environmental Prediction/National Centre for Atmospheric Research (NCEP/NCAR). The research showed a statistically significant decrease in the number of days with very strong and extreme cold stress on half of the analysed stations, and a slight tendency or no changes on the remaining stations. The occurrence of days with extreme cold stress in Poland, as revealed by the analysis was primarily related to the presence of high-pressure systems blocking zonal circulation. The study resulted in the designation of three circulation types, i.e. two types related to anticyclonic systems and one cyclonic type.
    Źródło:
    Quaestiones Geographicae; 2022, 41, 3; 111-126
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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