Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT
Circumpolar river deltas are a potential hotspot for the biogeochemical cycling of dissolved organic carbon (DOC) as it is leached from the surrounding landscape into deltaic river channels and eventually discharged to the near shore Arctic Ocean. The Mackenzie Delta, an intricate network of over 45...
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ftyorkuniv:oai:yorkspace.library.yorku.ca:10315/32800 2023-05-15T14:49:38+02:00 Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT Weeks, Gayla Tank, Suzanne 2016-11-25T14:21:44Z application/pdf http://hdl.handle.net/10315/32800 en eng http://hdl.handle.net/10315/32800 Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. Environmental science Arctic Mackenzie Delta Dissolved organic carbon DOC Photochemical degradation Biological degradation BDOC Mackenzie River Lakes Biogeochemistry Electronic Thesis or Dissertation 2016 ftyorkuniv 2022-08-22T13:05:04Z Circumpolar river deltas are a potential hotspot for the biogeochemical cycling of dissolved organic carbon (DOC) as it is leached from the surrounding landscape into deltaic river channels and eventually discharged to the near shore Arctic Ocean. The Mackenzie Delta, an intricate network of over 45,000 lakes in the western Canadian Arctic, is strongly dependent on both the flood dynamics and biogeochemical properties of the northward flowing Mackenzie River. This study examined the seasonal and spatial variability of photochemical and biological DOC degradation within select river channels and lakes of the Mackenzie Delta. The study revealed significant differences in DOC loss via photochemical (PCD) and biological degradation (BDOC) within lakes of differing flood regimes, while river waters showed only minor losses via BDOC, but significant photochemical degradation. In addition, incubation experiments indicate that BDOC is strongly enhanced through UV exposure. Thesis Arctic Arctic Ocean Climate change Mackenzie Delta Mackenzie river York University, Toronto: YorkSpace Arctic Arctic Ocean Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Mackenzie River |
institution |
Open Polar |
collection |
York University, Toronto: YorkSpace |
op_collection_id |
ftyorkuniv |
language |
English |
topic |
Environmental science Arctic Mackenzie Delta Dissolved organic carbon DOC Photochemical degradation Biological degradation BDOC Mackenzie River Lakes Biogeochemistry |
spellingShingle |
Environmental science Arctic Mackenzie Delta Dissolved organic carbon DOC Photochemical degradation Biological degradation BDOC Mackenzie River Lakes Biogeochemistry Weeks, Gayla Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
topic_facet |
Environmental science Arctic Mackenzie Delta Dissolved organic carbon DOC Photochemical degradation Biological degradation BDOC Mackenzie River Lakes Biogeochemistry |
description |
Circumpolar river deltas are a potential hotspot for the biogeochemical cycling of dissolved organic carbon (DOC) as it is leached from the surrounding landscape into deltaic river channels and eventually discharged to the near shore Arctic Ocean. The Mackenzie Delta, an intricate network of over 45,000 lakes in the western Canadian Arctic, is strongly dependent on both the flood dynamics and biogeochemical properties of the northward flowing Mackenzie River. This study examined the seasonal and spatial variability of photochemical and biological DOC degradation within select river channels and lakes of the Mackenzie Delta. The study revealed significant differences in DOC loss via photochemical (PCD) and biological degradation (BDOC) within lakes of differing flood regimes, while river waters showed only minor losses via BDOC, but significant photochemical degradation. In addition, incubation experiments indicate that BDOC is strongly enhanced through UV exposure. |
author2 |
Tank, Suzanne |
format |
Thesis |
author |
Weeks, Gayla |
author_facet |
Weeks, Gayla |
author_sort |
Weeks, Gayla |
title |
Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
title_short |
Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
title_full |
Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
title_fullStr |
Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
title_full_unstemmed |
Climate Change and the Fate of Dissolved Organic Carbon in the Mackenzie Delta, NWT |
title_sort |
climate change and the fate of dissolved organic carbon in the mackenzie delta, nwt |
publishDate |
2016 |
url |
http://hdl.handle.net/10315/32800 |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) |
geographic |
Arctic Arctic Ocean Mackenzie Delta Mackenzie River |
geographic_facet |
Arctic Arctic Ocean Mackenzie Delta Mackenzie River |
genre |
Arctic Arctic Ocean Climate change Mackenzie Delta Mackenzie river |
genre_facet |
Arctic Arctic Ocean Climate change Mackenzie Delta Mackenzie river |
op_relation |
http://hdl.handle.net/10315/32800 |
op_rights |
Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. |
_version_ |
1766320719866626048 |