Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018
Snow cores were collected from eight sites along the Arctic Coastal Plain in Alaska in April 2018, close to the time of maximum snow accumulation. Chloride and sulfate were measured by ion chromatography (Dionex ICS5000+) and input of these ions to the landscape was estimated using snow water equiva...
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Arctic Data Center
2021
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dataone:doi:10.18739/A2183437R 2024-06-03T18:46:31+00:00 Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 David Lipson Arctic Coastal Plain, Alaska ENVELOPE(-156.5389,-149.58464,71.29832,68.62353) BEGINDATE: 2018-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z 2021-01-01T00:00:00Z https://doi.org/10.18739/A2183437R unknown Arctic Data Center precipitation tundra Dataset 2021 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2183437R 2024-06-03T18:17:34Z Snow cores were collected from eight sites along the Arctic Coastal Plain in Alaska in April 2018, close to the time of maximum snow accumulation. Chloride and sulfate were measured by ion chromatography (Dionex ICS5000+) and input of these ions to the landscape was estimated using snow water equivalent derived from snow depth and density measurements. Rainfall was collected opportunistically at three of the sites in July 2018. These data support a study of biological chlorine cycling in the Arctic and its influence on greenhouse gas production. Microbes that can decompose chlorinated organic compounds were once considered relevant only in areas contaminated with pesticides and organic solvents. However, biological chlorine cycling is proving to be widespread in natural environments. Previous studies of biological chlorine cycling were mostly limited to forested ecosystems. This project was the first to demonstrate the importance of the production and degradation of chlorinated organic compounds in Arctic soils. Furthermore, there was little information about the linkages between chlorine cycling and other important ecosystem processes, such as production of carbon dioxide and methane from soils. Species in the genus Dehalococcoides are highly specialized, using hydrogen, acetate, vitamin B12-like compounds, and organic chlorine produced by the surrounding community. We studied which neighbors might produce these essential resources for Dehalococcoides species. We found that Dehalococcoides species are ubiquitous across the Arctic Coastal Plain and are closely associated with a network of microbes that produce or consume hydrogen or acetate, including the most abundant anaerobic bacteria and methanogenic archaea. We also found organic chlorine and microbes that can produce these compounds throughout the study area. Therefore, Dehalococcoides could control the balance between carbon dioxide and methane (a more potent greenhouse gas) when suitable organic chlorine compounds are available to drive hydrogen and acetate uptake, making them unavailable for methane production. Dataset Arctic Tundra Alaska Arctic Data Center (via DataONE) Arctic ENVELOPE(-156.5389,-149.58464,71.29832,68.62353) |
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Arctic Data Center (via DataONE) |
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dataone:urn:node:ARCTIC |
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precipitation tundra |
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precipitation tundra David Lipson Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
topic_facet |
precipitation tundra |
description |
Snow cores were collected from eight sites along the Arctic Coastal Plain in Alaska in April 2018, close to the time of maximum snow accumulation. Chloride and sulfate were measured by ion chromatography (Dionex ICS5000+) and input of these ions to the landscape was estimated using snow water equivalent derived from snow depth and density measurements. Rainfall was collected opportunistically at three of the sites in July 2018. These data support a study of biological chlorine cycling in the Arctic and its influence on greenhouse gas production. Microbes that can decompose chlorinated organic compounds were once considered relevant only in areas contaminated with pesticides and organic solvents. However, biological chlorine cycling is proving to be widespread in natural environments. Previous studies of biological chlorine cycling were mostly limited to forested ecosystems. This project was the first to demonstrate the importance of the production and degradation of chlorinated organic compounds in Arctic soils. Furthermore, there was little information about the linkages between chlorine cycling and other important ecosystem processes, such as production of carbon dioxide and methane from soils. Species in the genus Dehalococcoides are highly specialized, using hydrogen, acetate, vitamin B12-like compounds, and organic chlorine produced by the surrounding community. We studied which neighbors might produce these essential resources for Dehalococcoides species. We found that Dehalococcoides species are ubiquitous across the Arctic Coastal Plain and are closely associated with a network of microbes that produce or consume hydrogen or acetate, including the most abundant anaerobic bacteria and methanogenic archaea. We also found organic chlorine and microbes that can produce these compounds throughout the study area. Therefore, Dehalococcoides could control the balance between carbon dioxide and methane (a more potent greenhouse gas) when suitable organic chlorine compounds are available to drive hydrogen and acetate uptake, making them unavailable for methane production. |
format |
Dataset |
author |
David Lipson |
author_facet |
David Lipson |
author_sort |
David Lipson |
title |
Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
title_short |
Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
title_full |
Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
title_fullStr |
Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
title_full_unstemmed |
Chloride and sulfate concentrations in snow and rain of Arctic Coastal Plain, Alaska, 2018 |
title_sort |
chloride and sulfate concentrations in snow and rain of arctic coastal plain, alaska, 2018 |
publisher |
Arctic Data Center |
publishDate |
2021 |
url |
https://doi.org/10.18739/A2183437R |
op_coverage |
Arctic Coastal Plain, Alaska ENVELOPE(-156.5389,-149.58464,71.29832,68.62353) BEGINDATE: 2018-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z |
long_lat |
ENVELOPE(-156.5389,-149.58464,71.29832,68.62353) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_doi |
https://doi.org/10.18739/A2183437R |
_version_ |
1800867065265913856 |