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Sökning: onr:"swepub:oai:DiVA.org:uu-47192" > Ice cores from Sval...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003606naa a2200505 4500
001oai:DiVA.org:uu-47192
003SwePub
008050419s2003 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-471922 URI
0247 a https://doi.org/10.1016/j.pce.2003.08.0532 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Isaksson, Eu Norskt Polarinstitutt4 aut
2451 0a Ice cores from Svalbard :useful archives of past climate and pollution history.
264 1b Elsevier BV,c 2003
338 a print2 rdacarrier
520 a Ice cores from the relatively low-lying ice caps in Svalbard have not been widely exploited in climatic and environmental studies due to uncertainties about the effect of melt water percolation. However, results from two recent Svalbard ice cores, at Lomonosovfonna (1250 m asl) and Austfonna (750 m asl), have shown that with careful site selection, high-resolution sampling and multiple chemical analyses, it is possible to recover ice cores with partly preserved annual signals. These cores are estimated to cover at least the past 600 years and have been dated using a combination of known reference horizons and glacial modeling. The δ18O data from both Lomonosovfonna and Austfonna ice cores suggest that the 20th century was the warmest during the past 600 years. A comparison of the ice core and sea ice records from this period suggests that sea ice extent and Austfonna δ18O are linked over the past 400 years. This may reflect the position of the storm tracks and their direct influence on the relatively low altitude Austfonna. Lomonosovfonna may be less sensitive to such changes and primarily record atmospheric changes due to its higher elevation. The anthropogenic influence on Svalbard environment is illustrated by increased levels of non-sea-salt sulphate, nitrate, acidity, fly-ash and organic contaminants particularly during the second half of 1900s. Decreased concentrations of some components in recent decades most likely reflect emission and use restrictions. However, some current-use organic pesticide compounds show growing concentrations in near surface layers.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Naturgeografi0 (SwePub)105072 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Physical Geography0 (SwePub)105072 hsv//eng
653 a ce core chemistry
653 a Climate variability
653 a Organic contaminants
653 a Pollen
653 a Svalbard
653 a Physical geography
653 a Naturgeografi
7001 a Hermanson, M4 aut
7001 a Hicks, S4 aut
7001 a Igarashi, M4 aut
7001 a Kamiyama, K4 aut
7001 a Moore, J.C4 aut
7001 a Motoyama, H4 aut
7001 a Muir, D4 aut
7001 a Pohjola, Vu Uppsala universitet,Luft-, vatten- och landskapslära,ELD4 aut0 (Swepub:uu)veijpoho
7001 a Vaikmäe, R4 aut
7001 a van de Wal, R. S. W4 aut
7001 a Watanabe, O4 aut
7102 a Norskt Polarinstituttb Luft-, vatten- och landskapslära4 org
7730 t Physics and chemistry of the earth. Part Ad : Elsevier BVg 28:28-32, s. 1217-1228q 28:28-32<1217-1228x 1464-1895x 1873-4642x 1474-7065
8564 u https://brage.npolar.no/npolar-xmlui/bitstream/11250/174340/1/IsakssonPCE2003.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-47192
8564 8u https://doi.org/10.1016/j.pce.2003.08.053

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