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    Wyświetlanie 1-8 z 8
    Tytuł:
    Extreme daily air temperatures in Poland (2000-2013)
    Autorzy:
    Szczepanek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/60217.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    extreme temperature
    daily air temperature
    Polska
    2000-2013 period
    maximum temperature
    air temperature
    minimum temperature
    trend
    Opis:
    This work concentrates on the analysis of monthly trends of extremes daily temperatures, both minimum and maximum. Analysis was done for the period 2000–2013, based on freely available hourly temperature measurements from 60 Polish stations. Percentiles Tmin10 for minimum and Tmax90 for maximum daily temperature within each month were used as thresholds for selection of extreme temperature values. Count of days with extreme temperatures below/above threshold described every month. Significance of days count trend was analyzed with Mann–Kendall test at the significance level 0.05. For maximum temperatures, significant decreasing trend was found only for 3 station-months. For minimum temperature, 26 significant trends were found and presented in the form of map.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contemporary Climate Changes in the High Mountain Part of the Tatras
    Autorzy:
    Żmudzka, Elwira
    Powiązania:
    https://bibliotekanauki.pl/articles/2035472.pdf
    Data publikacji:
    2011-06-01
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Tematy:
    air temperature
    precipitation
    snow cover
    trend
    Tatra Mountains
    Opis:
    The purpose of this study was to determine the contemporary changes of precipitation and nival conditions in the high-mountain area of Tatras. Main features of thermal climate changes are the background of this investigation. The study makes use of the daily data from the weather station on Kasprowy Wierch Mt. from the years 1966-2006. Various climate characteristics were considered. The increase of the air temperature is not accompanied by significant changes in precipitation conditions. The signs of the more continentality climate features are also visible. The warming and a slight decrease in precipitation and the evolution of circulation conditions significantly influence the length of the period with the snow cover and not significantly its depth.
    Źródło:
    Miscellanea Geographica. Regional Studies on Development; 2011, 15; 93-102
    0867-6046
    2084-6118
    Pojawia się w:
    Miscellanea Geographica. Regional Studies on Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of extremes in air temperature over north-east and west coast regions of India
    Autorzy:
    Tondgimenba, J.
    De, U.S.
    Krishnakumar, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/11981.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    assessment
    extreme
    air temperature
    maximum temperature
    minimum temperature
    trend
    climate change
    coastal region
    India
    Opis:
    The projected effect of climate change is the increase of both the frequency and intensity of extreme weather events. An attempt has been made to study the extremes in temperature over two regions of India i.e. North-East Region (NER) and West Coast Region (WCR). A detailed analysis indicated that in the NER, ten stations indicate increase in annual extreme minimum but significant at four stations. Post-monsoon season is very predominant where five stations show significant increase. In the WCR, all the stations indicate increasing trend in annual extreme maximum temperature significant at nine stations. Majority of the stations indicate significant increasing trend in all the seasons except monsoon season.
    Źródło:
    Papers on Global Change; 2012, 19
    2300-8121
    1730-802X
    Pojawia się w:
    Papers on Global Change
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in extreme temperature indices at the Ukrainian Antarctic Akademik Vernadsky station, 1951-2020
    Autorzy:
    Khrystiuk, Borys
    Gorbachova, Liudmyla
    Shpyg, Vitalii
    Pishniak, Denys
    Powiązania:
    https://bibliotekanauki.pl/articles/2058417.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
    Tematy:
    Antarctica
    trend
    climate change
    extreme air temperature
    extreme indices
    RStudio Software
    Opis:
    In the late 20th century, warming on the Antarctic Peninsula was most pronounced compared to other parts of Antarctica. However, air temperature showed a significant variability, which has become especially evident in recent decades. Thus, the investigation of air temperature trends on the Antarctic Peninsula is important. This study examines the extreme air temperature at the Ukrainian Antarctic Akademik Vernadsky station, located on Galindez Island, Argentine Islands Archipelago, near the Antarctic Peninsula. For 1951 to 2020, based on the daily air temperature data, the temporal trends of extreme air temperature were analyzed, using 11 extreme temperature indices. Based on linear trend analysis and the Mann-Kendall trend test, the TXn, TNn, TN90p, and TN90p indices showed an upward trend, whereas theFD0, ID0, TN10p, TX10p, and DTR indices showed a downward trend. Among them, annually, FD0, ID0, and TN10p significantly decreased by –0.427 days, –0.452 days, and -0.465%, respectively, whereas TXn and TNn increased by 0.164℃ and 0.201℃, respectively. The indices TXx and TNn showed no statistically significant trends. The average annual difference between TX and TN (index DTR) showed a nonsignificant decreasing trend at –0.029℃ year-1 . Thus, for the period of 1951-2020, the Ukrainian Antarctic Akademik Vernadsky station was subjected to warming.
    Źródło:
    Meteorology Hydrology and Water Management. Research and Operational Applications; 2022, 10, 1; 95--106
    2299-3835
    2353-5652
    Pojawia się w:
    Meteorology Hydrology and Water Management. Research and Operational Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sea surface temperature development of the Baltic sea in the period 1990-2004
    Autorzy:
    Siegel, H.
    Gerth, M.
    Tschersich, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/48942.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Sopot
    regional variation
    sea surface temperature
    seasonal variation
    conference
    interannual variation
    Baltic Sea
    trend
    Opis:
    Sea Surface Temperature (SST) maps derived from NOAA weather satellites for the period 1990–2004 were used to investigate seasonal and inter-annual variations in the Baltic Sea. A comparison between monthly mean SST and in situ measurements at the MARNET station ‘Arkona Sea’ showed good agreement with differences in July and August. Monthly means reflect strong seasonal and interannual variations. The yearly means show a slight positive trend with an increase of 0.8 K in 15 years. In particular, summer and autumn months contribute to this positive trend, with stronger trends in the northern than in the southern Baltic. The winters are characterised by a slightly negative trend. The winter minimum SST in the Arkona Sea correlates best with the WIBIX climate index derived for the Baltic region.
    Źródło:
    Oceanologia; 2006, 48, S
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability of temperature and salinity over the last decade in selected regions of the Southern Baltic Sea
    Autorzy:
    Rak, D.
    Wieczorek, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/48785.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    temperature
    salinity
    Southern Baltic Sea
    trend
    seasonal variability
    physical property
    water column
    water exchange
    water circulation
    Opis:
    Changes in the basic physical properties of selected areas of the Baltic Proper were analysed on the basis of the results of a 12-year series of high-resolution measurements collected during cruises of r/v ‘Oceania’. The high-resolution CTD sections covered three main basins: the Bornholm Basin, Słupsk Furrow and Gdańsk Basin. Positive temperature trends of 0.11 and 0.16◦C year−1 were observed in the surface and deep layers respectively. The salinity trend was also positive. The rise in the air temperature has probably caused the increase in surface water temperature, while advection has been of greater significance in the deep layer. The increase in salinity coincides with the more frequent occurrence of small and medium-size inflows through the Danish Straits, even though large inflows are evidently less frequent than used to be the case. The seasonal variability of temperature in the water column was analysed. The phase shift in the seasonal evolution with depth is described. The maximum temperature shift in the waters investigated varies from 32 to 38 days.
    Źródło:
    Oceanologia; 2012, 54, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in Atlantic water characteristics in the South-Eastern Mediterranean Sea as a result of natural and anthropogenic activities
    Autorzy:
    Said, M.A.
    Gerges, M.A.
    Maiyza, I.A.
    Hussein, M.A.
    Radwan, A.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/47724.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Atlantic water
    change
    Mediterranean Sea
    Egypt
    natural activity
    anthropogenic activity
    temperature
    salinity
    trend
    water mass
    subsurface water
    water column
    Źródło:
    Oceanologia; 2011, 53, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Perspektywy wykorzystania układów ORC przy niskotemperaturowej energii odpadowej
    Perspective of application the ORC systems at low temperature waste energy
    Autorzy:
    Weisser, P.
    Skotnicki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/391907.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Ceramiki i Materiałów Budowlanych
    Tematy:
    zarządzanie energią
    odzysk energii
    źródło energii
    energia niskotemperaturowa
    system ORC
    kierunek rozwoju
    energy management
    energy recovery
    energy source
    low temperature energy
    Organic Rankine Cycle system
    trend
    Opis:
    Od niedawna w Polsce coraz bardziej znana jest technologia wytwarzania energii elektrycznej i ciepła w tzw. układach ORC - Organic Rankine Cycle. Jego ideą i główną zaletą jest możliwość wykorzystania mediów zasilających układ o niskich temperaturach. Poza tym uniwersalność systemu pozwala na wykorzystaniu go nie tylko przy dedykowanych zastosowaniach w układach z kotłami na biomasę czy geotermii. ale także przy różnorakim systemie odzysku ciepła odpadowego z procesów przemysłowych i energetycznych, szczególnie ciepła niskotemperaturowego czy energii solarnej. W obecnej chwili na rynku istnieje wiele typoszeregów jednostek ORC. Wychodząc jednak w kierunku energii odpadowej niskotemperaturowej - należy zastanowić się nad granicą stosowalności tychże układów oraz nad możliwościami optymalizacyjnymi i projektowymi jednostek.
    Recently in Poland much more popular has became the electricity and heat technology called systems ORC (Organic Rankine Cycle). Idea and the main advantage of this system is the ability to use the media supply system with low temperatures. Additionally, the universality of this system allows to use not only for dedicated applications in systems boilers for biomass and geothermal, but also to the manifold system, waste heat recovery from industrial processes and energy, especially low temperature heat or solar energy. At this moment the market offer a lot of ranges ORC units models. However going to the direction of low temperature waste energy, we should think about the applicability of these systems as well as optimization and design capabilitie of this units.
    Źródło:
    Prace Instytutu Ceramiki i Materiałów Budowlanych; 2010, R. 3, nr 6, 6; 114-122
    1899-3230
    Pojawia się w:
    Prace Instytutu Ceramiki i Materiałów Budowlanych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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