Recent changes in sediment accumulation rates in Adventfjorden, Svalbard

• Main Authors: Ryszard Bojanowski, Witold Szczuciński, Marek Zajączkowski
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2004
• Subjects: 137Cs; 210Pb; Sediment accumulation rates; Fjord; Svalbard; Oceanography; GC1-1581; Adventfjorden; Central Basin; Isfjord*; Isfjorden
• Online Access: https://doaj.org/article/6e10a00d55b348b0b2b109c63fc9d08a

Recent sediment accumulation rates in Adventfjorden (Svalbard), a small subpolar fjord, were determined by 210 Pb and 137 Cs dating. Modern rates in the central basin decrease downfjord from 1.87 to 0.87 cm y -1 (2.6 to 1.19 g cm -2 y -1 ). Comparison of the modern values (1986-2001) with older ones (1963-86) reveals a marked increase in sediment accumulation rates in the last ten years. This correlates well with recent climate changes (warming and increase in precipitation). Comparison with particulate matter flux data indicates that a portion of the sediment is passed on to Isfjorden.