Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ...
Estimated time series of Lagrangian basal melt rates from an autonomous phase-sensitive radar (ApRES) measurement at 79°N Glacier (Nioghalvfjerdsfjorden Glacier) in northeast Greenland since 2016. Measurement intervals ranged from one to six hours. Basal melt rates are based on the quantification of...
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ftdatacite:10.1594/pangaea.928903 2024-04-28T08:11:36+00:00 Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... Zeising, Ole Steinhage, Daniel Neckel, Niklas Humbert, Angelika 2024 application/zip https://dx.doi.org/10.1594/pangaea.928903 https://doi.pangaea.de/10.1594/PANGAEA.928903 en eng PANGAEA https://dx.doi.org/10.5194/tc-18-1333-2024 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 79°N Glacier ApRES Basal melt rates Nioghalvfjerdsfjorden Glacier Northeast Greenland Autonomous phase-sensitive radio-echo sounder GL-Land_2022_CalvDis GL-Land_2023_CalvDis GL-Land_2017_iGRIFF GL-Land_2018_iGRIFF AWI Arctic Land Expedition Greenland - Ice Sheet/Ocean Interaction From process understanding to an analysis of the regional system GROCE article Publication Series of Datasets Collection 2024 ftdatacite https://doi.org/10.1594/pangaea.92890310.5194/tc-18-1333-2024 2024-04-02T12:04:04Z Estimated time series of Lagrangian basal melt rates from an autonomous phase-sensitive radar (ApRES) measurement at 79°N Glacier (Nioghalvfjerdsfjorden Glacier) in northeast Greenland since 2016. Measurement intervals ranged from one to six hours. Basal melt rates are based on the quantification of the ablation, ice deformation due to strain, and the change in ice thickness. All quantities can be estimated from vertical displacements of internal and basal returns of the transmitted signal. We divided the first echogram into 6 m long segments with 5 m overlap starting at a depth of 20 m. For each segment, we derived displacements from complex cross-correlation of the phase of all pairwise time-consecutive measurements. Afterward, we calculated the daily mean values of the displacements. We used the time-mean vertical displacement of internal reflectors to calculate the vertical strain profile. Here only those segments between 20 m below the surface and 20 m above the basal return at the last measurement were ... : Data were measured in the field by Angelika Humbert, Niklas Neckel, Daniel Steinhage and Ole Zeising. Data processing was done by Ole Zeising, data analysis by Ole Zeising and Angelika Humbert. This dataset has been planned by Angelika Humbert as part of the iGRIFF expeditions and as contribution to GROCE. If you have questions, please contact Ole Zeising (ole.zeising@awi.de) or co-authors.This collection contains datasets since 2016, however, new datasets mights still be added. ... Article in Journal/Newspaper Arctic glacier Greenland Ice Sheet Nioghalvfjerdsfjorden DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
79°N Glacier ApRES Basal melt rates Nioghalvfjerdsfjorden Glacier Northeast Greenland Autonomous phase-sensitive radio-echo sounder GL-Land_2022_CalvDis GL-Land_2023_CalvDis GL-Land_2017_iGRIFF GL-Land_2018_iGRIFF AWI Arctic Land Expedition Greenland - Ice Sheet/Ocean Interaction From process understanding to an analysis of the regional system GROCE |
spellingShingle |
79°N Glacier ApRES Basal melt rates Nioghalvfjerdsfjorden Glacier Northeast Greenland Autonomous phase-sensitive radio-echo sounder GL-Land_2022_CalvDis GL-Land_2023_CalvDis GL-Land_2017_iGRIFF GL-Land_2018_iGRIFF AWI Arctic Land Expedition Greenland - Ice Sheet/Ocean Interaction From process understanding to an analysis of the regional system GROCE Zeising, Ole Steinhage, Daniel Neckel, Niklas Humbert, Angelika Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
topic_facet |
79°N Glacier ApRES Basal melt rates Nioghalvfjerdsfjorden Glacier Northeast Greenland Autonomous phase-sensitive radio-echo sounder GL-Land_2022_CalvDis GL-Land_2023_CalvDis GL-Land_2017_iGRIFF GL-Land_2018_iGRIFF AWI Arctic Land Expedition Greenland - Ice Sheet/Ocean Interaction From process understanding to an analysis of the regional system GROCE |
description |
Estimated time series of Lagrangian basal melt rates from an autonomous phase-sensitive radar (ApRES) measurement at 79°N Glacier (Nioghalvfjerdsfjorden Glacier) in northeast Greenland since 2016. Measurement intervals ranged from one to six hours. Basal melt rates are based on the quantification of the ablation, ice deformation due to strain, and the change in ice thickness. All quantities can be estimated from vertical displacements of internal and basal returns of the transmitted signal. We divided the first echogram into 6 m long segments with 5 m overlap starting at a depth of 20 m. For each segment, we derived displacements from complex cross-correlation of the phase of all pairwise time-consecutive measurements. Afterward, we calculated the daily mean values of the displacements. We used the time-mean vertical displacement of internal reflectors to calculate the vertical strain profile. Here only those segments between 20 m below the surface and 20 m above the basal return at the last measurement were ... : Data were measured in the field by Angelika Humbert, Niklas Neckel, Daniel Steinhage and Ole Zeising. Data processing was done by Ole Zeising, data analysis by Ole Zeising and Angelika Humbert. This dataset has been planned by Angelika Humbert as part of the iGRIFF expeditions and as contribution to GROCE. If you have questions, please contact Ole Zeising (ole.zeising@awi.de) or co-authors.This collection contains datasets since 2016, however, new datasets mights still be added. ... |
format |
Article in Journal/Newspaper |
author |
Zeising, Ole Steinhage, Daniel Neckel, Niklas Humbert, Angelika |
author_facet |
Zeising, Ole Steinhage, Daniel Neckel, Niklas Humbert, Angelika |
author_sort |
Zeising, Ole |
title |
Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
title_short |
Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
title_full |
Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
title_fullStr |
Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
title_full_unstemmed |
Time series of Lagrangian basal melt rates at 79°N Glacier since 2016 ... |
title_sort |
time series of lagrangian basal melt rates at 79°n glacier since 2016 ... |
publisher |
PANGAEA |
publishDate |
2024 |
url |
https://dx.doi.org/10.1594/pangaea.928903 https://doi.pangaea.de/10.1594/PANGAEA.928903 |
genre |
Arctic glacier Greenland Ice Sheet Nioghalvfjerdsfjorden |
genre_facet |
Arctic glacier Greenland Ice Sheet Nioghalvfjerdsfjorden |
op_relation |
https://dx.doi.org/10.5194/tc-18-1333-2024 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.92890310.5194/tc-18-1333-2024 |
_version_ |
1797578946801303552 |