A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA
We present a unique time series of continuous glacier frontal ablation rates with weekly resolution over 15 years estimated from seismic calving observations at Kronebreen, Svalbard. Using linear statistical models, we calibrate the seismic record with 7 years of satellite-derived frontal ablation m...
Published in: | Geophysical Research Letters |
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Language: | English |
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2016
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5004091 2023-05-15T16:22:11+02:00 A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA Köhler, A. Nuth, C. Kohler, J. Berthier, E. Weidle, C. Schweitzer, J. 2016 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004091 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL070589 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004091 Geophysical Research Letters info:eu-repo/semantics/article 2016 ftgfzpotsdam https://doi.org/10.1002/2016GL070589 2022-09-14T05:57:25Z We present a unique time series of continuous glacier frontal ablation rates with weekly resolution over 15 years estimated from seismic calving observations at Kronebreen, Svalbard. Using linear statistical models, we calibrate the seismic record with 7 years of satellite-derived frontal ablation measurements. The two basic input parameters required for our models are the cumulative duration of individual seismic calving events and the incompleteness of the seismic record to correct for the effect of seismic background noise. Frontal ablation follows the seasonal glacier speedup, peaking 1–2 months after the melt season maximum. Short-lived peaks are associated with melt and rain events. Cumulative frontal ablation of Kronebreen between 2001 and 2015 is about 4.0 km3 (3.7 Gt), with the greatest annual loss (0.45 km3) between 2013 and 2014 at the onset of the recent accelerated retreat of the glacier. Our approach provides a potential method for monitoring tidewater glaciers worldwide that have sufficiently close seismic instrumentation. Article in Journal/Newspaper glacier Svalbard Tidewater GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Svalbard Geophysical Research Letters 43 23 12,155 12,164 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
We present a unique time series of continuous glacier frontal ablation rates with weekly resolution over 15 years estimated from seismic calving observations at Kronebreen, Svalbard. Using linear statistical models, we calibrate the seismic record with 7 years of satellite-derived frontal ablation measurements. The two basic input parameters required for our models are the cumulative duration of individual seismic calving events and the incompleteness of the seismic record to correct for the effect of seismic background noise. Frontal ablation follows the seasonal glacier speedup, peaking 1–2 months after the melt season maximum. Short-lived peaks are associated with melt and rain events. Cumulative frontal ablation of Kronebreen between 2001 and 2015 is about 4.0 km3 (3.7 Gt), with the greatest annual loss (0.45 km3) between 2013 and 2014 at the onset of the recent accelerated retreat of the glacier. Our approach provides a potential method for monitoring tidewater glaciers worldwide that have sufficiently close seismic instrumentation. |
format |
Article in Journal/Newspaper |
author |
Köhler, A. Nuth, C. Kohler, J. Berthier, E. Weidle, C. Schweitzer, J. |
spellingShingle |
Köhler, A. Nuth, C. Kohler, J. Berthier, E. Weidle, C. Schweitzer, J. A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
author_facet |
Köhler, A. Nuth, C. Kohler, J. Berthier, E. Weidle, C. Schweitzer, J. |
author_sort |
Köhler, A. |
title |
A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
title_short |
A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
title_full |
A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
title_fullStr |
A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
title_full_unstemmed |
A 15 year record of frontal glacier ablation rates estimated from seismic data: FRONTAL ABLATION FROM SEISMIC DATA |
title_sort |
15 year record of frontal glacier ablation rates estimated from seismic data: frontal ablation from seismic data |
publishDate |
2016 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004091 |
long_lat |
ENVELOPE(13.333,13.333,78.833,78.833) |
geographic |
Kronebreen Svalbard |
geographic_facet |
Kronebreen Svalbard |
genre |
glacier Svalbard Tidewater |
genre_facet |
glacier Svalbard Tidewater |
op_source |
Geophysical Research Letters |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL070589 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004091 |
op_doi |
https://doi.org/10.1002/2016GL070589 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
23 |
container_start_page |
12,155 |
op_container_end_page |
12,164 |
_version_ |
1766010155783159808 |