Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data
Polygonal ground is a signature characteristic of the Arctic, and permafrost thaw can potentially generate substantial feedbacks to Arctic ecosystems and climate. This study describes the first comprehensive spatial examination of active layer biogeochemistry that extends across high- and low-center...
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dataone:ess-dive-727f9f313184acc-20230403T165030795 2023-11-08T14:14:15+01:00 Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data Heather Throckmorton Brent Newman NGEE Arctic Utqiagvik (Barrow), Alaska ENVELOPE(-156.7,-156.4,71.35,71.2) BEGINDATE: 2012-07-18T00:00:00Z ENDDATE: 2012-09-14T00:00:00Z 2022-08-25T00:00:00Z https://search.dataone.org/view/ess-dive-727f9f313184acc-20230403T165030795 unknown ESS-DIVE: Deep Insight for Earth Science Data dissolved oxygen EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER TOC nitrate Aqueous geochemistry Anions Soil pore water geochemistry EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY DOC Barrow, Alaska Cations Utqiagvik, Alaska total organic carbon dissolved organic carbon EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUND WATER CHEMISTRY Dataset 2022 dataone:urn:node:ESS_DIVE 2023-11-08T13:48:26Z Polygonal ground is a signature characteristic of the Arctic, and permafrost thaw can potentially generate substantial feedbacks to Arctic ecosystems and climate. This study describes the first comprehensive spatial examination of active layer biogeochemistry that extends across high- and low-centered polygons and their features, including depth. Water chemistry measurements were made on active layer water samples collected near Barrow, Alaska during summer, 2012. Several significant differences in chemistry were observed between high- and low-centered polygons suggesting polygon types may be useful for landscape-scale geochemical classification. However, differences were found for polygon features (centers and troughs) for analytes that were not significant for type, suggesting that finer scale features control biogeochemistry in a different way than polygon type. Depth variations were also significant, demonstrating important multi-dimensional aspects of polygonal ground biogeochemistry. These results have major implications for understanding how polygonal ground ecosystems function, and how they may respond to future change. This data package includes one *.csv data file and one *.pdf user guide. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM). Dataset Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska ESS-DIVE: Deep Insight for Earth Science Data (via DataONE) Arctic ENVELOPE(-156.7,-156.4,71.35,71.2) |
institution |
Open Polar |
collection |
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE) |
op_collection_id |
dataone:urn:node:ESS_DIVE |
language |
unknown |
topic |
dissolved oxygen EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER TOC nitrate Aqueous geochemistry Anions Soil pore water geochemistry EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY DOC Barrow, Alaska Cations Utqiagvik, Alaska total organic carbon dissolved organic carbon EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUND WATER CHEMISTRY |
spellingShingle |
dissolved oxygen EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER TOC nitrate Aqueous geochemistry Anions Soil pore water geochemistry EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY DOC Barrow, Alaska Cations Utqiagvik, Alaska total organic carbon dissolved organic carbon EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUND WATER CHEMISTRY Heather Throckmorton Brent Newman Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
topic_facet |
dissolved oxygen EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER TOC nitrate Aqueous geochemistry Anions Soil pore water geochemistry EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY DOC Barrow, Alaska Cations Utqiagvik, Alaska total organic carbon dissolved organic carbon EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUND WATER CHEMISTRY |
description |
Polygonal ground is a signature characteristic of the Arctic, and permafrost thaw can potentially generate substantial feedbacks to Arctic ecosystems and climate. This study describes the first comprehensive spatial examination of active layer biogeochemistry that extends across high- and low-centered polygons and their features, including depth. Water chemistry measurements were made on active layer water samples collected near Barrow, Alaska during summer, 2012. Several significant differences in chemistry were observed between high- and low-centered polygons suggesting polygon types may be useful for landscape-scale geochemical classification. However, differences were found for polygon features (centers and troughs) for analytes that were not significant for type, suggesting that finer scale features control biogeochemistry in a different way than polygon type. Depth variations were also significant, demonstrating important multi-dimensional aspects of polygonal ground biogeochemistry. These results have major implications for understanding how polygonal ground ecosystems function, and how they may respond to future change. This data package includes one *.csv data file and one *.pdf user guide. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM). |
format |
Dataset |
author |
Heather Throckmorton Brent Newman |
author_facet |
Heather Throckmorton Brent Newman |
author_sort |
Heather Throckmorton |
title |
Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
title_short |
Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
title_full |
Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
title_fullStr |
Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
title_full_unstemmed |
Microtopographic and Depth Controls on Active Layer Chemistry in Arctic Polygonal Ground: Supporting Data |
title_sort |
microtopographic and depth controls on active layer chemistry in arctic polygonal ground: supporting data |
publisher |
ESS-DIVE: Deep Insight for Earth Science Data |
publishDate |
2022 |
url |
https://search.dataone.org/view/ess-dive-727f9f313184acc-20230403T165030795 |
op_coverage |
NGEE Arctic Utqiagvik (Barrow), Alaska ENVELOPE(-156.7,-156.4,71.35,71.2) BEGINDATE: 2012-07-18T00:00:00Z ENDDATE: 2012-09-14T00:00:00Z |
long_lat |
ENVELOPE(-156.7,-156.4,71.35,71.2) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska |
genre_facet |
Arctic Barrow Nome north slope permafrost Seward Peninsula Tundra Alaska |
_version_ |
1782012421903220736 |