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    Tytuł:
    Stability of vessels in an ice-free Arctic
    Autorzy:
    Johansen, K.
    Sollid, M. P.
    Gudmestad, O. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1841599.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Ice-Free Arctic
    Maritime Education and Training
    stability of vessels
    ship stability
    Icing
    marine Icing model
    Polar Low
    IMO Polar Code
    Opis:
    One consequence of the declining ice cover in the Arctic is increased areas of open seas. These new open sea areas lead to some challenging aspects related to ship stability. Longer fetch lengths, associated with build-up of larger waves followed by increased conditions for sea spray icing on vessels is one aspect. Open seas in combination with cold atmospheric temperatures is a prerequisite for polar low pressures to occur. Polar lows may represent an additional aspect of increased icing on vessels by heavy snow in addition to extensive sea spray ice accretion. Over the last decades, different formulas for prediction of sea spray ice accretion rate on ships were developed to form basis for ice accretion warnings. Some of these formulas seem to have certain limitations and appear to be conservative. Important limitations of some formulas are considerations regarding heat flux, relationship between wind and waves, and ice accretion related to Polar lows. This paper will take a closer look at the accuracy and the realism of different ice accretion formulas and, related to this aspect, we will also discuss whether ship officer candidates receive sufficient maritime education and training (MET) related to realistic ice accretion and ship icing aspects.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 663-671
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Navigating a vessel without an ice class on the NSR close to the front of Ice-free zone during ice melting period
    Autorzy:
    Pastusiak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/117228.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Arctic shipping
    ice-free zone
    ice melting period
    ice class
    Northern Sea Route (NSR)
    ice-free transit corridor
    Arctic area
    Arctic navigation
    Opis:
    Arikaynen A.I., Tsubakov K.N. 1987. Alphabet of ice navigation. [in Russian] (Aзбyкa лeдoвoгo плaвaния). Transport, Moscov: 224 Buysse J. 2007. Handling ships in ice, A practical guide to handling 1A and 1AS classed ships. The Nautical Institute, London: 166 House D.J., Lloyd T., Toomey P.R.M., Dickins D. 2010. The ice navigation manual. Witherby Seamanship International Ltd: 409 International Hydrographic Office, 1953. Limits of oceans and seas. Publication S-23: 40 International Hydrographic Office, 2002. Limits of oceans and seas. Publication S-23, Draft 4th Edition, 2002: 235 Jurdziński M. 2000. Planning the navigation in ice [in Polish] (Planowanie nawigacji w lodach). Wyższa Szkoła Morska, Gdynia: 192 NATICE, 2018. MIZ ice concentration maps in ESRI Shape format. U.S. National Ice Center, http://www.natice.noaa.gov/Main_Products.htm. Accessed 19.12.2018 Natural Earth, 2017. Free vector and raster map data at 1:10 m, 1:50 m, and 1:110 m scales, http://www.naturalearth-data.com. Accessed 01.01.2017 Parnell G.Q. 1986. Ice seamanship, Monograph. The Nauitical Institute: 87 Pastusiak T. 2016a. The time window for vessels without ice strengthening on the Northern Sea Route, Annual of Navigation, No. 23: 103-119 Pastusiak T. 2016b. The Northern Sea Route as a shipping lane. Expectations and Reality, ISBN 978-3-319-41832-2, ISBN eBook 978-3-319-41834-6, Springer International Publishing AG, Switzerland: 247 Pastusiak T. 2016c. Principles of Vessel Route Planning in Ice on the Northern Sea Route, TRANSNAV, International Journal of Marine Navigation and safety of sea transportation, Vol. 10 No. 4 - December 2016 Pastusiak T. 2018. Planning independent transit voyages of vessel without ice strengthening through the Northern Sea Route [in Polish] (Planowanie samodzielnych podróży tranzytowych statku bez wzmocnień lodowych przez Północną Drogę Morską). Akademia Morska w Gdyni, Gdynia, ISBN 978-83-7421-286-1: 278 Pastusiak T. 2020. Voyages on the Northern Sea Route, Springer International Publishing, 1st ed. 2020, XXXVIII, Print ISBN 978-3-030-25489-6: 279 Shapaev V.M. 1975. Hydrometeorological conditions and navigation [in Russian] (Гидрометеорологические условя и мореплавание). Moscov, Transport: 248
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 227-233
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity and distribution of lichens in recently deglaciated areas of southeastern Spitsbergen
    Autorzy:
    Maciejowski, W.
    Osyczka, P.
    Smykla, J.
    Ziaja, W.
    Ostafin, K.
    Krzewicka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130716.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Arctic
    Svalbard
    Sørkapp Land
    Torell Land
    lichenized fungi
    spontaneous
    succession
    ice-free areas
    Opis:
    The diversity and distribution of lichen species were investigated in recently deglaciated areas of the borderland between Sørkapp Land and Torell Land (southeastern Spitsbergen, Svalbard). A total of 15 sites representing various habitat types specific to the area were evaluated. Sampling sites were characterized by a very diverse composition of lichens and species richness ranging from as few as two species to as many as 53. None of the species was ubiquitous among the investigated sampling sites; conversely, most were recorded only once or twice indicating a high heterogeneity in species distribution. Eighty species are reported for the first time from southeastern Spitsbergen. The terricolous lichen Verrucaria xyloxena is reported for the first time from the Svalbard archipelago. The influence of the selected abiotic and biotic environmental factors on the occurrences and distributions of lichen species is discussed in this paper.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2018, 87, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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