The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk
Arctic permafrost coasts are greatly impacted by global climate change. Warming permafrost, decreasing sea ice extent and increasing sea temperature lead to greater coastal erosion. The carbon stored in the permafrost is then released into the nearshore zone, where it degrades, potentially leading t...
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ftzenodo:oai:zenodo.org:10260240 2024-09-15T18:02:33+00:00 The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk Petzold, Pia Lantuit, Hugues Fritz, Michael 2023-06-22 https://doi.org/10.5281/zenodo.10260240 unknown Zenodo https://zenodo.org/communities/nunataryuk https://zenodo.org/communities/eu https://doi.org/10.5281/zenodo.10260239 https://doi.org/10.5281/zenodo.10260240 oai:zenodo.org:10260240 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode EUCOP 6, European Conference on Permafrost EUCOP 2023, Puigcerdá, Spain, 18. - 22.06.2023 info:eu-repo/semantics/conferencePoster 2023 ftzenodo https://doi.org/10.5281/zenodo.1026024010.5281/zenodo.10260239 2024-07-27T07:42:22Z Arctic permafrost coasts are greatly impacted by global climate change. Warming permafrost, decreasing sea ice extent and increasing sea temperature lead to greater coastal erosion. The carbon stored in the permafrost is then released into the nearshore zone, where it degrades, potentially leading to the release of greenhouse gas emissions (GHG) into the atmosphere. Yet, the exact pathways of organic carbon (OC) in the nearshore zone are not completely understood. In order to fill this gap, we collected dissolved and particulate OC (DOC, POC) samples in the nearshore zone of Herschel Island, Qikiqtaruk. The sampling was repeatedly carried out along a transect over a period of two weeks during the open water season in summer 2022. Water samples were collected at the surface and at several water depths. Subsequently, water samples were filtered through 47 μm fiberglass filters and examined in the laboratory for suspended particulate matter, DOC, and POC. When possible, Van Veen Grab samples and short cores were taken at each sample location. The upper six centimeters of the short cores as well as the grab samples were analyzed for grain size, mercury, carbon and nitrogen content. In addition to the water sampling, temperature, conductivity, salinity, and turbidity were measured at each sampling location with CTD and turbidity meter. Initial data shows a gradient in temperature and turbidity in the water column, especially at the beginning of the sampling period, which coincided with the sea ice breakup. Hereby, values for Turbidity range from 3.81 to 205.00 FNU. The amount of DOC and POC in the water samples will give an indication on the variability of geochemical properties in the water column over time. This will allow us to determine and quantify the link between these properties and environmental forcing. Conference Object Climate change Herschel Island Ice permafrost Sea ice Zenodo |
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Arctic permafrost coasts are greatly impacted by global climate change. Warming permafrost, decreasing sea ice extent and increasing sea temperature lead to greater coastal erosion. The carbon stored in the permafrost is then released into the nearshore zone, where it degrades, potentially leading to the release of greenhouse gas emissions (GHG) into the atmosphere. Yet, the exact pathways of organic carbon (OC) in the nearshore zone are not completely understood. In order to fill this gap, we collected dissolved and particulate OC (DOC, POC) samples in the nearshore zone of Herschel Island, Qikiqtaruk. The sampling was repeatedly carried out along a transect over a period of two weeks during the open water season in summer 2022. Water samples were collected at the surface and at several water depths. Subsequently, water samples were filtered through 47 μm fiberglass filters and examined in the laboratory for suspended particulate matter, DOC, and POC. When possible, Van Veen Grab samples and short cores were taken at each sample location. The upper six centimeters of the short cores as well as the grab samples were analyzed for grain size, mercury, carbon and nitrogen content. In addition to the water sampling, temperature, conductivity, salinity, and turbidity were measured at each sampling location with CTD and turbidity meter. Initial data shows a gradient in temperature and turbidity in the water column, especially at the beginning of the sampling period, which coincided with the sea ice breakup. Hereby, values for Turbidity range from 3.81 to 205.00 FNU. The amount of DOC and POC in the water samples will give an indication on the variability of geochemical properties in the water column over time. This will allow us to determine and quantify the link between these properties and environmental forcing. |
format |
Conference Object |
author |
Petzold, Pia Lantuit, Hugues Fritz, Michael |
spellingShingle |
Petzold, Pia Lantuit, Hugues Fritz, Michael The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
author_facet |
Petzold, Pia Lantuit, Hugues Fritz, Michael |
author_sort |
Petzold, Pia |
title |
The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
title_short |
The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
title_full |
The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
title_fullStr |
The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
title_full_unstemmed |
The Way of Carbon: Composition and Transport of Organic Carbon in the Nearshore Zone of Herschel Island, Qikiqtaruk |
title_sort |
way of carbon: composition and transport of organic carbon in the nearshore zone of herschel island, qikiqtaruk |
publisher |
Zenodo |
publishDate |
2023 |
url |
https://doi.org/10.5281/zenodo.10260240 |
genre |
Climate change Herschel Island Ice permafrost Sea ice |
genre_facet |
Climate change Herschel Island Ice permafrost Sea ice |
op_source |
EUCOP 6, European Conference on Permafrost EUCOP 2023, Puigcerdá, Spain, 18. - 22.06.2023 |
op_relation |
https://zenodo.org/communities/nunataryuk https://zenodo.org/communities/eu https://doi.org/10.5281/zenodo.10260239 https://doi.org/10.5281/zenodo.10260240 oai:zenodo.org:10260240 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.1026024010.5281/zenodo.10260239 |
_version_ |
1810440000425164800 |