Using SAR satellite data time series for regional glacier mapping
With dense SAR satellite data time series it is possible to map surface and subsurface glacier properties that vary in time. On Sentinel-1A and RADARSAT-2 backscatter time series images over mainland Norway and Svalbard, we outline how to map glaciers using descriptive methods. We present five appli...
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ftdoajarticles:oai:doaj.org/article:db9c13da5ffd4132b5966d2f9909b3f0 2023-05-15T16:21:57+02:00 Using SAR satellite data time series for regional glacier mapping S. H. Winsvold A. Kääb C. Nuth L. M. Andreassen W. J. J. van Pelt T. Schellenberger 2018-03-01T00:00:00Z https://doi.org/10.5194/tc-12-867-2018 https://doaj.org/article/db9c13da5ffd4132b5966d2f9909b3f0 EN eng Copernicus Publications https://www.the-cryosphere.net/12/867/2018/tc-12-867-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-867-2018 1994-0416 1994-0424 https://doaj.org/article/db9c13da5ffd4132b5966d2f9909b3f0 The Cryosphere, Vol 12, Pp 867-890 (2018) Environmental sciences GE1-350 Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.5194/tc-12-867-2018 2022-12-31T01:33:36Z With dense SAR satellite data time series it is possible to map surface and subsurface glacier properties that vary in time. On Sentinel-1A and RADARSAT-2 backscatter time series images over mainland Norway and Svalbard, we outline how to map glaciers using descriptive methods. We present five application scenarios. The first shows potential for tracking transient snow lines with SAR backscatter time series and correlates with both optical satellite images (Sentinel-2A and Landsat 8) and equilibrium line altitudes derived from in situ surface mass balance data. In the second application scenario, time series representation of glacier facies corresponding to SAR glacier zones shows potential for a more accurate delineation of the zones and how they change in time. The third application scenario investigates the firn evolution using dense SAR backscatter time series together with a coupled energy balance and multilayer firn model. We find strong correlation between backscatter signals with both the modeled firn air content and modeled wetness in the firn. In the fourth application scenario, we highlight how winter rain events can be detected in SAR time series, revealing important information about the area extent of internal accumulation. In the last application scenario, averaged summer SAR images were found to have potential in assisting the process of mapping glaciers outlines, especially in the presence of seasonal snow. Altogether we present examples of how to map glaciers and to further understand glaciological processes using the existing and future massive amount of multi-sensor time series data. Article in Journal/Newspaper glacier glacier Svalbard The Cryosphere Directory of Open Access Journals: DOAJ Articles Svalbard Norway The Cryosphere 12 3 867 890 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 S. H. Winsvold A. Kääb C. Nuth L. M. Andreassen W. J. J. van Pelt T. Schellenberger Using SAR satellite data time series for regional glacier mapping |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
With dense SAR satellite data time series it is possible to map surface and subsurface glacier properties that vary in time. On Sentinel-1A and RADARSAT-2 backscatter time series images over mainland Norway and Svalbard, we outline how to map glaciers using descriptive methods. We present five application scenarios. The first shows potential for tracking transient snow lines with SAR backscatter time series and correlates with both optical satellite images (Sentinel-2A and Landsat 8) and equilibrium line altitudes derived from in situ surface mass balance data. In the second application scenario, time series representation of glacier facies corresponding to SAR glacier zones shows potential for a more accurate delineation of the zones and how they change in time. The third application scenario investigates the firn evolution using dense SAR backscatter time series together with a coupled energy balance and multilayer firn model. We find strong correlation between backscatter signals with both the modeled firn air content and modeled wetness in the firn. In the fourth application scenario, we highlight how winter rain events can be detected in SAR time series, revealing important information about the area extent of internal accumulation. In the last application scenario, averaged summer SAR images were found to have potential in assisting the process of mapping glaciers outlines, especially in the presence of seasonal snow. Altogether we present examples of how to map glaciers and to further understand glaciological processes using the existing and future massive amount of multi-sensor time series data. |
format |
Article in Journal/Newspaper |
author |
S. H. Winsvold A. Kääb C. Nuth L. M. Andreassen W. J. J. van Pelt T. Schellenberger |
author_facet |
S. H. Winsvold A. Kääb C. Nuth L. M. Andreassen W. J. J. van Pelt T. Schellenberger |
author_sort |
S. H. Winsvold |
title |
Using SAR satellite data time series for regional glacier mapping |
title_short |
Using SAR satellite data time series for regional glacier mapping |
title_full |
Using SAR satellite data time series for regional glacier mapping |
title_fullStr |
Using SAR satellite data time series for regional glacier mapping |
title_full_unstemmed |
Using SAR satellite data time series for regional glacier mapping |
title_sort |
using sar satellite data time series for regional glacier mapping |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-867-2018 https://doaj.org/article/db9c13da5ffd4132b5966d2f9909b3f0 |
geographic |
Svalbard Norway |
geographic_facet |
Svalbard Norway |
genre |
glacier glacier Svalbard The Cryosphere |
genre_facet |
glacier glacier Svalbard The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 867-890 (2018) |
op_relation |
https://www.the-cryosphere.net/12/867/2018/tc-12-867-2018.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-12-867-2018 1994-0416 1994-0424 https://doaj.org/article/db9c13da5ffd4132b5966d2f9909b3f0 |
op_doi |
https://doi.org/10.5194/tc-12-867-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
3 |
container_start_page |
867 |
op_container_end_page |
890 |
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1766009925441421312 |