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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wiatry huraganowe w 2008 roku w Zatoce Admiralicji, Wyspa Króla Jerzego, Antarktyda Zachodnia
    Hurricane winds during 2008 year in Admiralty Bay, King George Island, West Antarctica
    Autorzy:
    Wierzbicki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/887060.pdf
    Data publikacji:
    2009
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    Antarktyda Zachodnia
    Zatoka Admiralicji
    huragany
    rok 2008
    wiatry
    wyspa Krola Jerzego
    cyrkulacja atmosferyczna
    Opis:
    Meteorological data collected by the author at Arctowski station from March to December 2008 revealed 72 days with hurricane winds in the Admiralty Bay. The results were compared with synoptic maps, wind data from Ferraz station and older data from Arctowski station. Winds in September 2008 reached the highest velocities (mean 32.0 m·s–1, gusts 80 m·s–1) ever measured in Admiralty Bay. 49% events of hurricane winds occurred while cold fronts were passing. Topography of King George Island affects winds distribution inside the bay. Hurricane winds accelerate ablation of glaciers on King George Island and cause serious problems for fi eldwork and maintaining of research stations in Antarctica.
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2009, 18, 2[44]
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Innowacyjny autonomiczny pojazd podwodny do badania stanu środowiska w warunkach trudnych
    Innovative autonomous underwater vehicle for research the environment in harsh condition
    Autorzy:
    Chodnicki, M.
    Jażdzewski, M.
    Kulwicki, Ł
    Ławreszuk, D.
    Panasiuk-Chodnicka, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/137196.pdf
    Data publikacji:
    2014
    Wydawca:
    Uczelnia Jana Wyżykowskiego
    Tematy:
    autonomiczny pojazd podwodny
    nawigacja
    sterowanie
    Zatoka Admiralicji
    Antarktyka
    autonomous underwater vehicle
    navigation
    control system
    Admiralty Bay
    Antarctica
    Opis:
    Na podstawie rzeczywistej, aktualnej wiedzy w temacie rozwoju robotów podwodnych został zaprojektowany nowy pojazd wyposażony w innowacyjne rozwiązania. Autonomiczny robot podwodny dedykowany jest do pracy w trudnych warunkach środowiskowych, wymagających odporności na wysokie ciśnienie, niskie temperatury i silne prądy, które są typowe dla regionów polarnych. W pracy opisano charakterystykę docelowego rejonu, w którym ma być używany robot podwodny, tj. Zatokę Admiralicji w rejonie Archipelagu Szetlandów Południowych. Istotnym aspektem pracy był także dobór odpowiedniego systemu sterowania, który będzie zdolny przeprowadzić pojazd przez trudne i wymagające warunki stawiane przez środowisko zewnętrzne. Kolejnym elementem projektu jest ocena istniejących systemów nawigacji. Ostatnią częścią jest opracowanie kształtu robota, odpowiedniego do warunków otoczenia z uwzględnieniem możliwości zamontowania dodatkowych urządzeń mechanicznych, elektrycznych i pomiarowych, odpowiedzialnych za wykonywanie powierzonych zadań podczas misji robota.
    The use of Autonomic Underwater Vehicles (AUV) continuously recording the basic environmental parameters in marine polar regions are extremely difficult. This study provides a summary and a description of the existing solutions for the AUV, their use, construction, actuators and transmitters. Based on the actual knowledge a new vehicle equipped with innovative solutions and components was designed. The underwater robot is dedicated to be working in harsh environmental conditions requiring resistance to high pressure, low temperatures and strong currents, which are typical for the polar regions. The first stage of the design process consist of selection miniature sensors, vision systems to collect information about the environment. The next step was to develop a method for processing and storing data from the measurements. There has been elaborated a special communication and data transfer for this system. An important aspect of this design is a proprietary control system, which includes selecting an appropriate drive with the control program Marek Chodnicki, Marek Jażdzewski, Łukasz Kulwicki, Dawid Ławreszuk, Anna A. Panasiuk-Chodnicka 8 according to the external conditions. Another part of the research was the review of the existing navigation systems and subsequently implementation to the designed vehicle. Then, the power system with automatic charging was elaborated, which is possible to use natural energy sources. The last part was to design the shape of the mobile robot, taking into account the environmental conditions and the possibility of mechanical and electronic devices to be installed.
    Źródło:
    Zeszyty Naukowe Dolnośląskiej Wyższej Szkoły Przedsiębiorczości i Techniki. Studia z Nauk Technicznych; 2014, 3; 7-16
    2299-3355
    Pojawia się w:
    Zeszyty Naukowe Dolnośląskiej Wyższej Szkoły Przedsiębiorczości i Techniki. Studia z Nauk Technicznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zjawiska lodowe na Zatoce Admiralicji w roku 1999 (Wyspa Króla Jerzego, Szetlandy Południowe)
    Ice phenomena in the Admiralty Bay in 1999 (King George Island, South Shetland Islands)
    Autorzy:
    Zblewski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/260869.pdf
    Data publikacji:
    2001
    Wydawca:
    Stowarzyszenie Klimatologów Polskich
    Tematy:
    zjawiska lodowe
    Zatoka Admiralicji
    Wyspa Króla Jerzego
    Szetlandy Południowe
    ice phenomena
    Admiralty Bay
    King George Island
    South Shetland Islands
    Opis:
    In 1999 hydrometeorological observations were carried out at H. Arctowski Station. Ice phenomena in the Admiralty Bay and in the visible neighbouring area of the Bransfield Strait were, among others, the subject of these observations. The Admiralty Bay is a typical fjord and is the biggest bay in the Southern Shetlands archipelago, covering 122.08 km2. Winter ice cover formation of this area varies in different years. Once every 4-5 years the waters of the Bay do not freeze and the ice observed there originates from the Bransfield Strait. During the whole year glacial ice (brash ice, growlers, bergy bits and icebergs) originating from local sources and from other sea areas can be observed in the Admiralty Bay. In 1999 the process of the ice cover formation was characterised by variability both in time and space. During the observational period floating ice formed ice fields of different shapes and concentration. Brash ice and growlers often covered the weatter shore during high tidal waters. The icebergs in the said period are mainly observed at the entrance of the Bay (in the region of the Syrezol Rocks) less frequently inside the Bay. They usually drifted in the axial part of the Bay hardly ever reaching its central part. The autochthonous sea ice formed only near the shore and during the whole year it was the inflowing ice which was predominant. First forms of new ice in the waters of the Admiralty Bay occurred in the second decade of June. These forms were initial stage forms (frazil ice and grease ice) which never changed into more advanced form of sea ice. At the end of June the process of ice inflow from the Bransfield Strait started. The allochthonous ice reached mainly the axial and central parts of the Bay, however there were few cases noted in which the ice reached the auxiliary bays. The observations showed that the character of the main features of the winter sea ice cover of the Admiralty Bay was predominantly influenced by wind and ice conditions of the Bransfield Strait. In 1999 the Admiralty Bay was not covered by consolidated ice but by drifting ice which changed its position and edge very quickly. The course of ice phenomena in winter season 1999 had a mild character and according to Kruszewski's categories (1999) defining the ice conditions in the Admiralty Bay may be classed as number one.
    Źródło:
    Problemy Klimatologii Polarnej; 2001, 11; 113-120
    1234-0715
    Pojawia się w:
    Problemy Klimatologii Polarnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zlodzenie Zatoki Admiralicji a temperatura wody w energoaktywnej strefie Morza Bellingshausena (1982-1997)
    Sea ice condition in the Admiralty Bay and the water temperature in the energy-active region of the Bellingshausen Sea (1982-1997)
    Autorzy:
    Kruszewski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/260873.pdf
    Data publikacji:
    2001
    Wydawca:
    Stowarzyszenie Klimatologów Polskich
    Tematy:
    zjawiska lodowe
    Morze Bellingshausena
    Zatoka Admiralicji
    pokrywa lodowa
    zlodzenia
    ice phenomena
    Bellingshausen Sea
    Admiralty Bay
    ice cover
    sea ice
    Opis:
    Correlations, especially those on a regional scale, between the sea ice cover formation and the air and sea surface temperatures have been pointed out by a number of authors. Region that is clearly marked by such correlation is located NW of the Antarctic Peninsula (among others Weatherly and others, King 1994, Styszyńska 1997, 2000). The intensity of ice formation in the relatively small Admiralty Bay noted in a given winter season indicates strong correlation with the winter sea ice cover extent in a regional scale (Kruszew-ski 1999, 2000). This ice cover is influenced (among others) by the sea surface temperature. The possible nature of the correlation between the sea surface temperature (SST) at the meridian of 080°W and the changes in air temperature in the region of the Southern Shetlands as described by Styszyńska suggested the presence of similar correlations with the intensity of ice formation in that region, so in this way also in the Admiralty Bay. With the help of Spearmann correlation coefficient a number of statistically significant relations have been found between the course of SST in the region of 086-062°W and the intensity of ice formation in the Admiralty Bay are presented in a categorised way. These relations are both synchronic and asynchronic. The synchronic correlation is observed mainly between SST in winter months and the ice cover category in the same year (the increase in SST is followed by the decrease in ice cover category).These correlations are most significant in the region 62-66°S (July - September). They also occur farther north 56-58°S but this time in the eastern part of the said region (March-July) and they are also observed in 60-64° (but in January and February). The asynchronic correlations have been observed between SST in October and ice cover category of the Admiralty Bay in the following year(8-11month slater). These correlations are most significantly marked in 56-64°S (the northern part of the Bellingshausen Sea and in the Circumpolar Current region) especially in 60°S 080°W (r = -0.677, p < 0.01) and their character is similar to those of the previously mentioned synchronic correlations.
    Źródło:
    Problemy Klimatologii Polarnej; 2001, 11; 105-112
    1234-0715
    Pojawia się w:
    Problemy Klimatologii Polarnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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