Wszystkie pola: King, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Human impact upon the environment in the vicinity of Arctowski Station, King George Island, Antarctica
Autorzy:: Chwedorzewska, Katarzyna J.
Korczak, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2051623.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctica
King George Island
human impact
Źródło:: Polish Polar Research; 2010, 1; 45-60
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Isotopic ages of selected magmatic rocks from King George Island (West Antarctica ) controlled by magnetostratigraphy
Autorzy:: Nawrocki, J.
Pańczyk, M.
Williams, I.
Powiązania:: https://bibliotekanauki.pl/articles/2058738.pdf
Data publikacji:: 2011
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Antarctica
King George Island
magnetostratigraphy
isotopic ages
Opis:: Isotopic and palaeomagnetic studies were carried out in the central part of King George Island. Selected mafic to intermediate igneous rocks were sampled for this purpose. Single-grain U-Pb dating of zircons from basalts to dacites was controlled by a whole rock 40Ar-39Ar data and the magnetostratigraphy. Five magmatic activity phases were distinguished in the SE coast of King George Island. The oldest, late Cretaceous (Campanian) phase represented by basalts of the Uchatka Point Formation are followed by the early to middle Eocene (~53–43 Ma) phase documented by the lava flows whose ages decrease from SW to NE. Next younger magmatic activity phases were recorded by the lava flows or vertical intrusions emplaced in the late Eocene (~37–35 Ma), late Oligocene (~~28-25 Ma) and late Pliocene to Holocene. The early to middle Eocene magmatic activity phase was the most extensive, producing the largest volume of magma in the study area. The new age determinations allow a more precise and credible stratigraphic correlation of the interbeds of sedimentary rocks observed in some places within the magmatic succession. The glacial provenance of the Herv' Cove diamictite is not obvious. It might represent a mountain river environment. Intense volcanic activity could be additional factor modelling the climate conditions of Antarctica in Paleogene
Źródło:: Geological Quarterly; 2011, 55, 4; 301-322
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Molecular variation of Antarctic grass Deschampsia antarctica Desv. from King George Island [Antarctica]
Autorzy:: Chwedorzewska, K J
Bednarek, P.T.
Puchalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/56633.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: moisture
Antarctic
Deschampsia antarctica
soil
morphology
nutrition condition
environment condition
grass
genetic variation
plant
King George Island
Opis:: Deschampsia antarctica Desv. plants collected on King George Islands (Antarctica) at two localities that differ in topographic and nutrition conditions exhibited morphological variation that differentiated plants of both locations. The molecular variation characteristic to individuals of both sites was tested using AFLP approach in order to verify whether morphological variation characteristic to the plants resulted from environmental factors or possibly from differences at the DNA level. Four primer pair combinations were used to generate 339 AFLP fragments, 132 of which were polymorphic and allowed evaluation of genetic relationships among D. antarctica individuals. Chi-square test revealed that only 12 signals were discriminative for the plants from both locations. Cluster analysis conducted on these AFLP fragments demonstrated that plants from the location rich in biogenes were more polymorphic than those from poor one. Our data suggest that the phenotypic variation specific to plants of both locations seem to be the result of adaptation to the environmental conditions like soil and moisture rather than reflect genetic differences.
Źródło:: Acta Societatis Botanicorum Poloniae; 2004, 73, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Warunki meteorologiczne na Stacji Arctowskiego (Wyspa Króla Jerzego, Antarktyka) w 2012 roku
Meteorological conditions at the Arctowski Station (King George Island, Antarctic) in 2012
Autorzy:: Kejna, M.
Araźny, A.
Sobota, I.
Piszczek, J.
Łabno, R.
Powiązania:: https://bibliotekanauki.pl/articles/260671.pdf
Data publikacji:: 2013
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: warunki meteorologiczne
Stacja H. Arctowskiego
zmiany klimatu
King George Island
Antarktyka
meteorological conditions
Arctowski Station
climate change
Antarctica
Opis:: W artykule przedstawiono przebieg warunków meteorologicznych na Stacji H. Arctowskiego (Wyspa Króla Jerzego, Szetlandy Pd., Antarktyka) w 2012 roku. Pomiary prowadzono za pomocą automatycznej stacji meteorologicznej Davis Vantage Pro+ w interwale godzinnym. Przeanalizowano zmienność ciśnienia atmosferycznego, promieniowania słonecznego, temperatury i wilgotności powietrza oraz kierunku i prędkości wiatru w cyklu rocznym i dobowym. Uzyskane wyniki porównano z dłuższym okresem pomiarowym (1977-1999) oraz z równoległymi danymi z innych stacji prowadzących pomiary meteorologiczne na Wyspie Króla Jerzego.
This paper presents the meteorological conditions at the Arctowski Station (King George Island, South Shetland Islands, Antarctica) in 2012. Measurements were carried out using an automatic weather station Davis Vantage Pro+. At the Arctowski Station the global solar radiation in the period from January 19 to December 31, 2012 amounted to 2985.3 MJ.m-2 (8.60 MJ.m-2.day-1). Taking into account the full year from 1 February 2012 to 31 January 2013, this totaled to 2909.6 MJ.m-2 (7.97 MJ.m-2.day-1). The highest monthly value of solar radiation occurred in December, 567.8 MJ.m-2 (18.32 MJ.m-2.day-1) and the lowest in June, 10.4 MJ.m-2 (0.35 MJ.m-2.day-1). The average annual air temperature was –1.5°C, with the highest monthly average in January (2.4°C) and lowest in June (–5.6°C). The maximum of air temperature was 9.6°C, and the minimum –17.2°C. In 2012 the average atmospheric pressure at sea level was 989.0 hPa, with a characteristic semi-annual oscillation of pressure with two minima: in summer (January 985.3 hPa) and winter (June 979.4 hPa) and two maxima: in autumn (April 996.7 hPa) and spring (September 994.9 hPa). The lowest pressure was 946.8 hPa and the highest 1020.7 hPa. At the Arctowski Station SW, NE, E and SE winds dominate in accordance with gradient of air pressure and the local orography. The average wind speed at 2 m above the ground was 4.8 ms-1, with maximum in winter (June 6.1 ms-1) and minimum in summer (December 3.1 ms-1). The maximum wind speed exceeded 40 ms-1. Relative air humidity was 83%. There is less humidity in summer (January 78%) than in winter (July, 87%). In the course of humidity indicate the day with low humidity during foehn winds. Arctowski Station area is warmer to other regions of King George Island (about 1°C in summer and 1.5°C in winter). On the King George Island and Antarctic Peninsula area occurred increase of air temperature. At the neighboring station Bellingshausen in the years 1968-2012 air temperature rise by 0.17°C/10 years.
Źródło:: Problemy Klimatologii Polarnej; 2013, 23; 43-56
1234-0715
Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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