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Dissolved organic carbon (DOC) export from subarctic areas analyzed using a GIS/remote sensing approach
Malmö högskola, Faculty of Education and Society (LS), Department of Nature, Environment and Society (NMS).ORCID iD: 0000-0001-9730-9706
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2016 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Subarctic ecosystems are predicted to experience the fastest responses to climate change on the planet, with dramatically altered vegetation patterns, frost dynamics and hydrological flow paths. The resulting change in dissolved organic carbon (DOC) export to river systems is poorly known, but reports of rising DOC in northern surface waters have led to widespread speculations on a possible climate-induced freshwater ‘brownification’. In this study we explore the possibility of using the Normalized Vegetation Difference Index (NDVI) together with easily available topographical indices to model the DOC release into first-order streams, focusing on a subarctic area of Sweden (Stordalen) with discontinuous permafrost. We utilise earth observation data in predicting changes in DOC export, and further combine these efforts with distributed modeling of hydrological flow paths to generate maps of stream DOC in a palsa landscape. Our preliminary results point to a largely unexplored potential of using GIS and Remote Sensing analysis to reconstruct and project the DOC export from subarctic catchments and its response to climate change.

Place, publisher, year, edition, pages
ASLO , 2016.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:mau:diva-11477Local ID: 21589OAI: oai:DiVA.org:mau-11477DiVA, id: diva2:1408521
Conference
The Association for the Sciences of Limnology and Oceanography (ASLO) Summer Meeting, Santa Fe, New Mexico (5-10 June 2016)
Available from: 2020-02-29 Created: 2020-02-29 Last updated: 2023-09-05Bibliographically approved

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http://www.sgmeet.com/aslo/santafe2016/default.asp

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Schubert, Per

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CiteExportLink to record
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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