Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A high-resolution oxygen isotope reconstruction of humidity changes in central Sweden during the late Holocene
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Records of stable oxygen isotope variations from a variety of proxies have been used in palaeoclimatic research since the 1950’s. Several studies have applied stable isotope analysis of lake sediments to reconstruct past climate changes in central and northern Sweden, including a study of Lake Blektjärnen in Jämtland, central Sweden, by Andersson (2010). In this study, sediments from that same lake were sampled for stable isotope analysis of bulk carbonates with the aim to improve the resolution of the isotopic record for the last two millennia. The results indicate a shift from relatively drier to wetter conditions between ~2,300–1,300 cal. years BP, generally wet conditions close to the Medieval Warm Period (~1,000–750 cal. years BP) and generally dry conditions during the Little Ice Age (~550–150 cal. years BP). These results are in agreement with previous palaeoclimatic reconstructions in the region. The isotopic record of Lake Blektjärnen was completed for the last ~2,350 years at a resolution of ~15 years per sample, three times higher than that of the previous study, displaying the advantages of bulk carbonate sampling for stable isotope analysis and providing a high-resolution dataset on humidity changes in central Sweden during the late Holocene.

Place, publisher, year, edition, pages
2014. , 26 p.
Keyword [en]
stable, isotope, oxygen, carbonate, humidity, sweden, holocene
National Category
Climate Research
Identifiers
URN: urn:nbn:se:su:diva-105982OAI: oai:DiVA.org:su-105982DiVA: diva2:733835
Supervisors
Examiners
Available from: 2014-07-11 Created: 2014-07-11 Last updated: 2014-07-11Bibliographically approved

Open Access in DiVA

fulltext(1993 kB)187 downloads
File information
File name FULLTEXT01.pdfFile size 1993 kBChecksum SHA-512
1e6e2bcdcd03c25e3829c1b135ee08c80bd6c09a4b79f42d9429c0a5de9e5cad5147c7cdaa19e3bf12911061349f7d9f837db163bd57bc928af8d2c25b012103
Type fulltextMimetype application/pdf

By organisation
Department of Physical Geography and Quaternary Geology
Climate Research

Search outside of DiVA

GoogleGoogle Scholar
Total: 187 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 459 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf