Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018

This project assesses how weathering varies across deglaciated and proglacial watersheds in western and southern Greenland to evaluate the impact of ice sheet retreat on isotopic and nutrient fluxes to the ocean and atmospheric carbon dioxide (CO 2 ) and methane (CH 4 ) exchange. Deglaciated watersh...

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Bibliographic Details
Main Authors: Andrea Pain, Jonathan Martin, Ellen Martin, Shaily Rahman, Emily An
Format: Dataset
Language:unknown
Published: Arctic Data Center 2019
Subjects:
Ice
Online Access:https://search.dataone.org/view/urn:uuid:c8b5746e-3e77-4192-836a-17218a24db97
id dataone:urn:uuid:c8b5746e-3e77-4192-836a-17218a24db97
record_format openpolar
spelling dataone:urn:uuid:c8b5746e-3e77-4192-836a-17218a24db97 2024-10-03T18:46:06+00:00 Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018 Andrea Pain Jonathan Martin Ellen Martin Shaily Rahman Emily An Watson River, Greenland Lake Helen watershed, Greenland Sisimiut watersheds, Greenland Quornup Kua watershed, Greenland Kiagtut Sermiat watershed, Greenland ENVELOPE(-50.68259,-50.05655,67.15853,67.00917) BEGINDATE: 2017-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z 2019-01-01T00:00:00Z https://search.dataone.org/view/urn:uuid:c8b5746e-3e77-4192-836a-17218a24db97 unknown Arctic Data Center Greenland glacial meltwater stream water chemistry watersheds hydrology biogeochemistry hydrogeochemistry trace metals Dataset 2019 dataone:urn:node:ARCTIC 2024-10-03T18:18:00Z This project assesses how weathering varies across deglaciated and proglacial watersheds in western and southern Greenland to evaluate the impact of ice sheet retreat on isotopic and nutrient fluxes to the ocean and atmospheric carbon dioxide (CO 2 ) and methane (CH 4 ) exchange. Deglaciated watersheds are separated from the ice sheet by hydrologic divides and drain precipitation and permafrost meltwater, while proglacial watersheds include also glacial meltwater. Previous studies of high latitude weathering focused almost exclusively on proglacial and subglacial systems; however, preliminary work suggests deglaciated watersheds in western Greenland have similar specific discharge (discharge normalized to drainage area) but solute concentrations distinct from proglacial system. Distinct solute concentrations results from increasing weathering extent from inland to the coast. Greenland Ice Sheet (GrIS) retreat will increase the areal extent of deglaciated watersheds, particularly those with coastal weathering characteristics, and thus should weathering fluxes. This project aims to test the hypothesis that differences in weathering reactions and extent within deglaciated watershed, and between deglaciated and proglacial environments, will produce predictable changes in isotopic, solute, and nutrient fluxes as the ice sheet retreats. We compare stream discharge and water chemistry between Greenlandic proglacial and nonglacial streams during the spring (2017), summer (2018) and fall (2017) melt seasons between two rivers draining the Greenland Ice Sheet (proglacial rivers) and six streams draining deglaciated watersheds (nonglacial streams). This dataset includes major cations and anions, biogeochemical solute concentrations, trace metals, radiogenic isotopes, Dissolved Organic Carbon (DOC) and Colored Dissolved Organic Matter (CDOM) characteristics analyzed with spectroscopic (UV (ultraviolet) absorbance and fluorescence) measurement, and stream discharge information. Dataset Greenland greenlandic Ice Ice Sheet permafrost Sisimiut Arctic Data Center (via DataONE) Greenland Sisimiut ENVELOPE(-53.674,-53.674,66.939,66.939) ENVELOPE(-50.68259,-50.05655,67.15853,67.00917)
institution Open Polar
collection Arctic Data Center (via DataONE)
op_collection_id dataone:urn:node:ARCTIC
language unknown
topic Greenland
glacial meltwater
stream water chemistry
watersheds
hydrology
biogeochemistry
hydrogeochemistry
trace metals
spellingShingle Greenland
glacial meltwater
stream water chemistry
watersheds
hydrology
biogeochemistry
hydrogeochemistry
trace metals
Andrea Pain
Jonathan Martin
Ellen Martin
Shaily Rahman
Emily An
Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
topic_facet Greenland
glacial meltwater
stream water chemistry
watersheds
hydrology
biogeochemistry
hydrogeochemistry
trace metals
description This project assesses how weathering varies across deglaciated and proglacial watersheds in western and southern Greenland to evaluate the impact of ice sheet retreat on isotopic and nutrient fluxes to the ocean and atmospheric carbon dioxide (CO 2 ) and methane (CH 4 ) exchange. Deglaciated watersheds are separated from the ice sheet by hydrologic divides and drain precipitation and permafrost meltwater, while proglacial watersheds include also glacial meltwater. Previous studies of high latitude weathering focused almost exclusively on proglacial and subglacial systems; however, preliminary work suggests deglaciated watersheds in western Greenland have similar specific discharge (discharge normalized to drainage area) but solute concentrations distinct from proglacial system. Distinct solute concentrations results from increasing weathering extent from inland to the coast. Greenland Ice Sheet (GrIS) retreat will increase the areal extent of deglaciated watersheds, particularly those with coastal weathering characteristics, and thus should weathering fluxes. This project aims to test the hypothesis that differences in weathering reactions and extent within deglaciated watershed, and between deglaciated and proglacial environments, will produce predictable changes in isotopic, solute, and nutrient fluxes as the ice sheet retreats. We compare stream discharge and water chemistry between Greenlandic proglacial and nonglacial streams during the spring (2017), summer (2018) and fall (2017) melt seasons between two rivers draining the Greenland Ice Sheet (proglacial rivers) and six streams draining deglaciated watersheds (nonglacial streams). This dataset includes major cations and anions, biogeochemical solute concentrations, trace metals, radiogenic isotopes, Dissolved Organic Carbon (DOC) and Colored Dissolved Organic Matter (CDOM) characteristics analyzed with spectroscopic (UV (ultraviolet) absorbance and fluorescence) measurement, and stream discharge information.
format Dataset
author Andrea Pain
Jonathan Martin
Ellen Martin
Shaily Rahman
Emily An
author_facet Andrea Pain
Jonathan Martin
Ellen Martin
Shaily Rahman
Emily An
author_sort Andrea Pain
title Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
title_short Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
title_full Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
title_fullStr Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
title_full_unstemmed Hydrogeochemistry of Greenlandic proglacial and nonglacial streams, 2017-2018
title_sort hydrogeochemistry of greenlandic proglacial and nonglacial streams, 2017-2018
publisher Arctic Data Center
publishDate 2019
url https://search.dataone.org/view/urn:uuid:c8b5746e-3e77-4192-836a-17218a24db97
op_coverage Watson River, Greenland
Lake Helen watershed, Greenland
Sisimiut watersheds, Greenland
Quornup Kua watershed, Greenland
Kiagtut Sermiat watershed, Greenland
ENVELOPE(-50.68259,-50.05655,67.15853,67.00917)
BEGINDATE: 2017-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z
long_lat ENVELOPE(-53.674,-53.674,66.939,66.939)
ENVELOPE(-50.68259,-50.05655,67.15853,67.00917)
geographic Greenland
Sisimiut
geographic_facet Greenland
Sisimiut
genre Greenland
greenlandic
Ice
Ice Sheet
permafrost
Sisimiut
genre_facet Greenland
greenlandic
Ice
Ice Sheet
permafrost
Sisimiut
_version_ 1811924341320843264