Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2
We examine the mass balance of the glaciers in the Novaya Zemlya Archipelago, located in the Russian High Arctic using time series of time-variable gravity from the NASA/DLR Gravity Recovery and Climate Experiment (GRACE) mission, laser altimetry data from the NASA Ice Cloud and land Elevation Satel...
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ftdoajarticles:oai:doaj.org/article:344b94129c424eba91ab4beedd2063a0 2023-05-15T14:56:50+02:00 Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 Enrico Ciracì Isabella Velicogna Tyler Clark Sutterley 2018-11-01T00:00:00Z https://doi.org/10.3390/rs10111817 https://doaj.org/article/344b94129c424eba91ab4beedd2063a0 EN eng MDPI AG https://www.mdpi.com/2072-4292/10/11/1817 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs10111817 https://doaj.org/article/344b94129c424eba91ab4beedd2063a0 Remote Sensing, Vol 10, Iss 11, p 1817 (2018) Novaya Zemlya altimetry gravity Russian High Arctic glaciers and ice caps climate change GRACE ICESat CryoSat-2 Science Q article 2018 ftdoajarticles https://doi.org/10.3390/rs10111817 2022-12-31T10:20:00Z We examine the mass balance of the glaciers in the Novaya Zemlya Archipelago, located in the Russian High Arctic using time series of time-variable gravity from the NASA/DLR Gravity Recovery and Climate Experiment (GRACE) mission, laser altimetry data from the NASA Ice Cloud and land Elevation Satellite (ICESat) mission, and radar altimetry data from the European Space Agency (ESA) CryoSat-2 mission. We present a new algorithm for detecting changes in glacier elevation from these satellite altimetry data and evaluate its performance in the case of Novaya Zemlya by comparing the results with GRACE. We find that the mass loss of Novaya Zemlya glaciers increased from 10 ± 5 Gt/year over 2003⁻2009 to 14 ± 4 Gt/year over 2010⁻2016, with a brief period of near-zero mass balance between 2009 and 2011. The results are consistent across the gravimetric and altimetric methods. Furthermore, the analysis of elevation change from CryoSat-2 indicates that the mass loss occurs at elevation below 700 m, where the highest thinning rates are found. We also find that marine-terminating glaciers in Novaya Zemlya are thinning significantly faster than land-terminating glaciers, which indicates an important role of ice dynamics of marine-terminating glaciers. We posit that the glacier changes have been caused by changes in atmospheric and ocean temperatures. We find that the increase in mass loss after 2010 is associated with a warming in air temperatures, which increased the surface melt rates. There is not enough information on the ocean temperature at the front of the glaciers to conclude on the role of the ocean, but we posit that the temperature of subsurface ocean waters must have increased during the observation period. Article in Journal/Newspaper Arctic Climate change Novaya Zemlya Directory of Open Access Journals: DOAJ Articles Arctic Remote Sensing 10 11 1817 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Novaya Zemlya altimetry gravity Russian High Arctic glaciers and ice caps climate change GRACE ICESat CryoSat-2 Science Q |
spellingShingle |
Novaya Zemlya altimetry gravity Russian High Arctic glaciers and ice caps climate change GRACE ICESat CryoSat-2 Science Q Enrico Ciracì Isabella Velicogna Tyler Clark Sutterley Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
topic_facet |
Novaya Zemlya altimetry gravity Russian High Arctic glaciers and ice caps climate change GRACE ICESat CryoSat-2 Science Q |
description |
We examine the mass balance of the glaciers in the Novaya Zemlya Archipelago, located in the Russian High Arctic using time series of time-variable gravity from the NASA/DLR Gravity Recovery and Climate Experiment (GRACE) mission, laser altimetry data from the NASA Ice Cloud and land Elevation Satellite (ICESat) mission, and radar altimetry data from the European Space Agency (ESA) CryoSat-2 mission. We present a new algorithm for detecting changes in glacier elevation from these satellite altimetry data and evaluate its performance in the case of Novaya Zemlya by comparing the results with GRACE. We find that the mass loss of Novaya Zemlya glaciers increased from 10 ± 5 Gt/year over 2003⁻2009 to 14 ± 4 Gt/year over 2010⁻2016, with a brief period of near-zero mass balance between 2009 and 2011. The results are consistent across the gravimetric and altimetric methods. Furthermore, the analysis of elevation change from CryoSat-2 indicates that the mass loss occurs at elevation below 700 m, where the highest thinning rates are found. We also find that marine-terminating glaciers in Novaya Zemlya are thinning significantly faster than land-terminating glaciers, which indicates an important role of ice dynamics of marine-terminating glaciers. We posit that the glacier changes have been caused by changes in atmospheric and ocean temperatures. We find that the increase in mass loss after 2010 is associated with a warming in air temperatures, which increased the surface melt rates. There is not enough information on the ocean temperature at the front of the glaciers to conclude on the role of the ocean, but we posit that the temperature of subsurface ocean waters must have increased during the observation period. |
format |
Article in Journal/Newspaper |
author |
Enrico Ciracì Isabella Velicogna Tyler Clark Sutterley |
author_facet |
Enrico Ciracì Isabella Velicogna Tyler Clark Sutterley |
author_sort |
Enrico Ciracì |
title |
Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
title_short |
Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
title_full |
Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
title_fullStr |
Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
title_full_unstemmed |
Mass Balance of Novaya Zemlya Archipelago, Russian High Arctic, Using Time-Variable Gravity from GRACE and Altimetry Data from ICESat and CryoSat-2 |
title_sort |
mass balance of novaya zemlya archipelago, russian high arctic, using time-variable gravity from grace and altimetry data from icesat and cryosat-2 |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/rs10111817 https://doaj.org/article/344b94129c424eba91ab4beedd2063a0 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Novaya Zemlya |
genre_facet |
Arctic Climate change Novaya Zemlya |
op_source |
Remote Sensing, Vol 10, Iss 11, p 1817 (2018) |
op_relation |
https://www.mdpi.com/2072-4292/10/11/1817 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs10111817 https://doaj.org/article/344b94129c424eba91ab4beedd2063a0 |
op_doi |
https://doi.org/10.3390/rs10111817 |
container_title |
Remote Sensing |
container_volume |
10 |
container_issue |
11 |
container_start_page |
1817 |
_version_ |
1766328900790517760 |