Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022
The dataset consists of raw data and derived melt rates from autonomous phase-sensitive radar (ApRES) measurements. The ApRES was operated with two broadband frame antennas at the Ekström Ice Shelf since April 2020 with one measurement every hour. These Lagrangian measurements allow the estimation o...
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Language: | English |
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PANGAEA
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.972023 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.972023 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctica ApRES Basal melt rates Ekström ice shelf basal melting |
spellingShingle |
Antarctica ApRES Basal melt rates Ekström ice shelf basal melting Zeising, Ole Steinhage, Daniel Berger, Sophie Drews, Reinhard Ershadi, M Reza Fromm, Tanja Hattermann, Tore Pattyn, Frank Eisen, Olaf Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
topic_facet |
Antarctica ApRES Basal melt rates Ekström ice shelf basal melting |
description |
The dataset consists of raw data and derived melt rates from autonomous phase-sensitive radar (ApRES) measurements. The ApRES was operated with two broadband frame antennas at the Ekström Ice Shelf since April 2020 with one measurement every hour. These Lagrangian measurements allow the estimation of basal melt rates based on estimated vertical displacements of englacial and basal reflections. The ApRES is an autonomous operating frequency-modulated continuous wave (FMCW) radar that transmits a tone sweep - called chirp - ranging from 200 to 400 MHz over a period of one second. In order to improve the signal-to-noise ratio, 20 chirps were transmitted within a single measurement. These measurements were repeated every hour. A raw data file contains up to 4 measurements. Background of the pRES-system is published by Nicholls et al. (2015). The processing of the data is described in Zeising et al., (submitted to The Cryosphere). The estimated basal melt rates are based on the analysis of firn densification, strain thinning, and the change in ice thickness from the determination of vertical displacements. The basal melt rates are averaged over 7 days (moving window). To represent the variability of the melt rate on sub-weekly timescales, we also calculated the 7 day standard deviation of the basal melt rates based on a 1 day moving window. The uncertainty of the basal melt rate is based on the uncertainty of the strain estimation and the determination of the ice thickness change. Data are exported in 4 hour intervals. A positive melt rate represents melting. Details on the processing are given in Zeising et al., (submitted to The Cryosphere). |
format |
Other/Unknown Material |
author |
Zeising, Ole Steinhage, Daniel Berger, Sophie Drews, Reinhard Ershadi, M Reza Fromm, Tanja Hattermann, Tore Pattyn, Frank Eisen, Olaf |
author_facet |
Zeising, Ole Steinhage, Daniel Berger, Sophie Drews, Reinhard Ershadi, M Reza Fromm, Tanja Hattermann, Tore Pattyn, Frank Eisen, Olaf |
author_sort |
Zeising, Ole |
title |
Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
title_short |
Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
title_full |
Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
title_fullStr |
Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
title_full_unstemmed |
Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 |
title_sort |
time series of autonomous phase-sensitive radar (apres) measurements and determined basal melt rates at location eis8 on ekström ice shelf, antarctica from november 2021 to december 2022 |
publisher |
PANGAEA |
url |
https://doi.pangaea.de/10.1594/PANGAEA.972023 |
op_coverage |
LATITUDE: -70.820000 * LONGITUDE: -8.730000 * DATE/TIME START: 2021-11-26T00:00:00 * DATE/TIME END: 2022-12-31T07:22:00 |
long_lat |
ENVELOPE(-8.730000,-8.730000,-70.820000,-70.820000) |
genre |
Antarc* Antarctica Ice Shelf Journal of Glaciology The Cryosphere The Cryosphere Discussions |
genre_facet |
Antarc* Antarctica Ice Shelf Journal of Glaciology The Cryosphere The Cryosphere Discussions |
op_relation |
Zeising, Ole; Hattermann, Tore; Kaleschke, Lars; Berger, Sophie; Drews, Reinhard; Ershadi, M Reza; Fromm, Tanja; Pattyn, Frank; Steinhage, Daniel; Eisen, Olaf (submitted): Weakening of meltwater plume reduces basal melting in summer at Ekström Ice Shelf, Antarctica. The Cryosphere Discussions, https://doi.org/10.5194/egusphere-2024-2109 Eisen, Olaf; Oerter, Hans; Weller, Rolf; Miller, Heinrich: Long-Term Observatory Glaciology at the Neumayer stations and hinterland [dataset bibliography]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971649 Nicholls, Keith W; Corr, Hugh F J; Stewart, Craig L; Lok, Lai Bun; Brennan, Paul V; Vaughan, David G (2015): A ground-based radar for measuring vertical strain rates and time-varying basal melt rates in ice sheets and shelves. Journal of Glaciology, 61(230), 1079-1087, https://doi.org/10.3189/2015JoG15J073 Zeising, Ole; Steinhage, Daniel; Berger, Sophie; Drews, Reinhard; Ershadi, M Reza; Fromm, Tanja; Hattermann, Tore; Pattyn, Frank; Eisen, Olaf (2024): Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates on Ekström Ice Shelf, Antarctica [dataset bibliography]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972121 https://doi.pangaea.de/10.1594/PANGAEA.972023 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.5194/egusphere-2024-210910.3189/2015JoG15J073 |
_version_ |
1810489727004966912 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.972023 2024-09-15T17:42:55+00:00 Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates at location EIS8 on Ekström Ice Shelf, Antarctica from November 2021 to December 2022 Zeising, Ole Steinhage, Daniel Berger, Sophie Drews, Reinhard Ershadi, M Reza Fromm, Tanja Hattermann, Tore Pattyn, Frank Eisen, Olaf LATITUDE: -70.820000 * LONGITUDE: -8.730000 * DATE/TIME START: 2021-11-26T00:00:00 * DATE/TIME END: 2022-12-31T07:22:00 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.972023 en eng PANGAEA Zeising, Ole; Hattermann, Tore; Kaleschke, Lars; Berger, Sophie; Drews, Reinhard; Ershadi, M Reza; Fromm, Tanja; Pattyn, Frank; Steinhage, Daniel; Eisen, Olaf (submitted): Weakening of meltwater plume reduces basal melting in summer at Ekström Ice Shelf, Antarctica. The Cryosphere Discussions, https://doi.org/10.5194/egusphere-2024-2109 Eisen, Olaf; Oerter, Hans; Weller, Rolf; Miller, Heinrich: Long-Term Observatory Glaciology at the Neumayer stations and hinterland [dataset bibliography]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971649 Nicholls, Keith W; Corr, Hugh F J; Stewart, Craig L; Lok, Lai Bun; Brennan, Paul V; Vaughan, David G (2015): A ground-based radar for measuring vertical strain rates and time-varying basal melt rates in ice sheets and shelves. Journal of Glaciology, 61(230), 1079-1087, https://doi.org/10.3189/2015JoG15J073 Zeising, Ole; Steinhage, Daniel; Berger, Sophie; Drews, Reinhard; Ershadi, M Reza; Fromm, Tanja; Hattermann, Tore; Pattyn, Frank; Eisen, Olaf (2024): Time series of autonomous phase-sensitive radar (ApRES) measurements and determined basal melt rates on Ekström Ice Shelf, Antarctica [dataset bibliography]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972121 https://doi.pangaea.de/10.1594/PANGAEA.972023 CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess Antarctica ApRES Basal melt rates Ekström ice shelf basal melting dataset bundled publication ftpangaea https://doi.org/10.5194/egusphere-2024-210910.3189/2015JoG15J073 2024-09-03T23:52:03Z The dataset consists of raw data and derived melt rates from autonomous phase-sensitive radar (ApRES) measurements. The ApRES was operated with two broadband frame antennas at the Ekström Ice Shelf since April 2020 with one measurement every hour. These Lagrangian measurements allow the estimation of basal melt rates based on estimated vertical displacements of englacial and basal reflections. The ApRES is an autonomous operating frequency-modulated continuous wave (FMCW) radar that transmits a tone sweep - called chirp - ranging from 200 to 400 MHz over a period of one second. In order to improve the signal-to-noise ratio, 20 chirps were transmitted within a single measurement. These measurements were repeated every hour. A raw data file contains up to 4 measurements. Background of the pRES-system is published by Nicholls et al. (2015). The processing of the data is described in Zeising et al., (submitted to The Cryosphere). The estimated basal melt rates are based on the analysis of firn densification, strain thinning, and the change in ice thickness from the determination of vertical displacements. The basal melt rates are averaged over 7 days (moving window). To represent the variability of the melt rate on sub-weekly timescales, we also calculated the 7 day standard deviation of the basal melt rates based on a 1 day moving window. The uncertainty of the basal melt rate is based on the uncertainty of the strain estimation and the determination of the ice thickness change. Data are exported in 4 hour intervals. A positive melt rate represents melting. Details on the processing are given in Zeising et al., (submitted to The Cryosphere). Other/Unknown Material Antarc* Antarctica Ice Shelf Journal of Glaciology The Cryosphere The Cryosphere Discussions PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-8.730000,-8.730000,-70.820000,-70.820000) |