Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ...
Meltwater produced on the Greenland Ice Sheet (GrIS) surface is routed through complex networks of supraglacial streams across the ice surface. Most of the supraglacial streams on the GrIS terminate into moulins. Moulins are vertical conduits that penetrate through the entire ice thickness and deliv...
Main Authors: | , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
NSF Arctic Data Center
2021
|
Subjects: | |
Online Access: | https://dx.doi.org/10.18739/a2d21rk53 https://arcticdata.io/catalog/view/doi:10.18739/A2D21RK53 |
id |
ftdatacite:10.18739/a2d21rk53 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.18739/a2d21rk53 2023-10-01T03:56:19+02:00 Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... Trunz, Celia Mejia, Jessica Covington, Matthew Siegel, Victoria Conlon, Brandon Gulley, Jason 2021 text/xml https://dx.doi.org/10.18739/a2d21rk53 https://arcticdata.io/catalog/view/doi:10.18739/A2D21RK53 en eng NSF Arctic Data Center Discharge Supraglacial stream unit hydrograph hydrology glacial hydrology supraglacial catchment Dataset dataset 2021 ftdatacite https://doi.org/10.18739/a2d21rk53 2023-09-04T15:18:52Z Meltwater produced on the Greenland Ice Sheet (GrIS) surface is routed through complex networks of supraglacial streams across the ice surface. Most of the supraglacial streams on the GrIS terminate into moulins. Moulins are vertical conduits that penetrate through the entire ice thickness and deliver meltwater to the ice sheet's bed where water pressure fluctuations can modulate sliding speed. A poorly constrained parameter in glacial hydrological models is the timing and the volume of meltwater entering moulins within the GrIS ablation area. Here, we present direct measurements of supraglacial stream discharge within six catchments within the GrIS ablation area during the 2017 and 2018 melt seasons. In 2017 we measured stream discharge using a fluorescent dye dilution method. We continuously injected a Rhodamine WT solution (known concentration and pumping rate) into supraglacial streams and measured the dye concentration with a Cyclops fluorometer installed 50-100 meters downstream of the dye injection ... Dataset Greenland Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Avannarleq ENVELOPE(-49.100,-49.100,62.133,62.133) Greenland Sermeq Avannarleq ENVELOPE(-50.833,-50.833,71.033,71.033) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Discharge Supraglacial stream unit hydrograph hydrology glacial hydrology supraglacial catchment |
spellingShingle |
Discharge Supraglacial stream unit hydrograph hydrology glacial hydrology supraglacial catchment Trunz, Celia Mejia, Jessica Covington, Matthew Siegel, Victoria Conlon, Brandon Gulley, Jason Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
topic_facet |
Discharge Supraglacial stream unit hydrograph hydrology glacial hydrology supraglacial catchment |
description |
Meltwater produced on the Greenland Ice Sheet (GrIS) surface is routed through complex networks of supraglacial streams across the ice surface. Most of the supraglacial streams on the GrIS terminate into moulins. Moulins are vertical conduits that penetrate through the entire ice thickness and deliver meltwater to the ice sheet's bed where water pressure fluctuations can modulate sliding speed. A poorly constrained parameter in glacial hydrological models is the timing and the volume of meltwater entering moulins within the GrIS ablation area. Here, we present direct measurements of supraglacial stream discharge within six catchments within the GrIS ablation area during the 2017 and 2018 melt seasons. In 2017 we measured stream discharge using a fluorescent dye dilution method. We continuously injected a Rhodamine WT solution (known concentration and pumping rate) into supraglacial streams and measured the dye concentration with a Cyclops fluorometer installed 50-100 meters downstream of the dye injection ... |
format |
Dataset |
author |
Trunz, Celia Mejia, Jessica Covington, Matthew Siegel, Victoria Conlon, Brandon Gulley, Jason |
author_facet |
Trunz, Celia Mejia, Jessica Covington, Matthew Siegel, Victoria Conlon, Brandon Gulley, Jason |
author_sort |
Trunz, Celia |
title |
Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
title_short |
Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
title_full |
Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
title_fullStr |
Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
title_full_unstemmed |
Supraglacial stream discharge measurements from six catchments within the Pâqitsoq region of Sermeq Avannarleq, western Greenland Ice Sheet 2017 -2018 ... |
title_sort |
supraglacial stream discharge measurements from six catchments within the pâqitsoq region of sermeq avannarleq, western greenland ice sheet 2017 -2018 ... |
publisher |
NSF Arctic Data Center |
publishDate |
2021 |
url |
https://dx.doi.org/10.18739/a2d21rk53 https://arcticdata.io/catalog/view/doi:10.18739/A2D21RK53 |
long_lat |
ENVELOPE(-49.100,-49.100,62.133,62.133) ENVELOPE(-50.833,-50.833,71.033,71.033) |
geographic |
Avannarleq Greenland Sermeq Avannarleq |
geographic_facet |
Avannarleq Greenland Sermeq Avannarleq |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_doi |
https://doi.org/10.18739/a2d21rk53 |
_version_ |
1778525728906674176 |