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Organic geochemical characterization on a seal excrement sediment core from Fildes Peninsula, Western Antarctica
Get PDFOrganic geochemical analysis was performed on a sediment core HN1 from Fildes Peninsula on King George Island, Western Antarctica. Short-chain n-alkanes were the main components of the aliphatic hydrocarbons present, and they were likely to be from algae and bacteria; n-C23 was likely derived from moss. Fecal sterols and phytol dominated the alcohol composition, and may have come from seal feces and vegetation, respectively. The fluctuations in their concentrations generally have responded to historical changes in the ecosystems near the region. The even-carbon fatty acids, such as n-C16, n-C18 and n-C24, dominated the alkenoic acid composition, which mainly originated from bacteria, moss and zooplankton. The low concentrations of unsaturated fatty acids showed a predominance of C16:1 and C18:1 unsaturated acids, and demonstrated that the sediment was well preserved and had a simple and stable source of organic materials
Measurement and analysis of ozone, ultraviolet B and aerosol light scattering coefficients in the Arctic
Get PDFTropospheric ozone (O3), ultraviolet B (UVB) radiation and aerosol light scattering coefficients (SC) were investigated on a cruise ship during the fourth Chinese National Arctic Research Expedition from July 1 - September 20, 2010. The results showed that O3, UVB and SC decreased with increasing latitude, with minimum values recorded in the central Arctic Ocean. Average O3 concentrations were 15.9 ppbv and 15.1 ppbv in the Bering Sea and Arctic Ocean, respectively. Ozone concentrations increased to 17.5 ppbv in the high Arctic region. Average UVB values were 0.26 W * m(-2) and 0.14 W * m(-2) in the Bering Sea and Arctic Ocean, respectively. The average SC in the Bering Sea was 4.3 M * m(-1), more than twice the value measured in the Arctic Ocean, which had an average value of 1.7 M * m(-1). Overall, UVB and SC values were stable in the central Arctic Ocean
Arctic Science and Technology Information System (ASTIS)
No full textThe Arctic Science and Technology Information System (ASTIS) database contains 72,000 records describing publications and research projects about northern Canada. ASTIS includes all subjects and covers the three territories, the northern parts of seven provinces and the adjacent marine areas. ASTIS records contain abstracts, detailed subject and geographic indexing terms, and links to 17,000 publications that are available online
Opening words by Stefán B. Sigurðsson at the 6th NRF Open Assembly.
No full textOpening words from rector of University of Akureyri, Stefán B. Sigurðsson. UNAK hosted the 6th NRF Open Assembly in Hveragerði Iceland, 4. - 6. September 2011. Please click on the URL below to see the video. Recorded by Arctic Portal
Statement from Kuupik Kleist at the NRF Open Assembly 2011
No full textThe Premier of Greenland, Mr. Kuupik Kleist, attended the 6th NRF Open Assembly in Hveragerði Iceland in September 2011. In the opening session he spoke these words in his statement.
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The Quaternary glacial history of Banks Island, NWT: how the paleo-record can help us predict future glacier change.
No full textJessica Vaughan, University of Alberta, Canada, talks here in the NRF 6th open assembly in Hveragerði, Iceland, in September of 2011.
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Permafrost and Greenhouse Gases: Towards Sustainable Development or Catastrophe of Our Ice Dependent World?
No full textYoung Researcher Ivan Sudakov, St. Petersburg State University, Russia, talks here in the NRF 6th open assembly in Hveragerði, Iceland, in September of 2011.
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Agreement on Cooperation on Aeronautical and Maritime Search and Rescue in the Arctic
Get PDFAgreement on Cooperation on Aeronautical and Maritime Search and Rescue in the Arctic - The SAR Agreement is the first legally binding agreement established under the auspices of the Arctic Council. It was signed May 12, 2011 in the Arctic Council Nuuk Ministerial Meeting
CAFF Monitoring Series Report No. 4 - Development of an Arctic Freshwater Biodiversity Monitoring Plan; Framework document
Get PDFCAFF Monitoring Series Report No. 4 - Development of an Arctic Freshwater Biodiversity Monitoring Plan; Framework
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Professor´s Yao Tandong opening statement at NRF Open Assembly 2011
No full textProfessor Yao Tandong, from the Institute of Tibetan Plateau Research at Chinese Academy of Science, speaks here in the opening session of the 6th Northern Research Forum, held in Hveragerði in September 2011.
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