Glacier geoengineering to address sea-level rise:A geotechnical approach
It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equit...
Published in: | Advances in Climate Change Research |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://research.ulapland.fi/fi/publications/a5463fee-6e24-47b6-beca-bc595938e8d6 https://doi.org/10.1016/j.accre.2020.11.008 http://www.scopus.com/inward/record.url?scp=85098509553&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85098509553&partnerID=8YFLogxK |
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ftulaplandcdispu:oai:lacris.ulapland.fi:publications/a5463fee-6e24-47b6-beca-bc595938e8d6 2024-04-28T08:02:51+00:00 Glacier geoengineering to address sea-level rise:A geotechnical approach Lockley, Andrew Wolovick, Michael Keefer, Bowie Gladstone, Rupert Zhao, Li Yun Moore, John C. 2020-12-05 https://research.ulapland.fi/fi/publications/a5463fee-6e24-47b6-beca-bc595938e8d6 https://doi.org/10.1016/j.accre.2020.11.008 http://www.scopus.com/inward/record.url?scp=85098509553&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85098509553&partnerID=8YFLogxK eng eng https://research.ulapland.fi/fi/publications/a5463fee-6e24-47b6-beca-bc595938e8d6 info:eu-repo/semantics/openAccess Lockley , A , Wolovick , M , Keefer , B , Gladstone , R , Zhao , L Y & Moore , J C 2020 , ' Glacier geoengineering to address sea-level rise : A geotechnical approach ' , Advances in Climate Change Research . https://doi.org/10.1016/j.accre.2020.11.008 Antarctica Climate intervention Glaciers Greenland Sea level rise Targeted geoengineering /dk/atira/pure/person/fieldofscience2010/1/17/1 name=Geosciences article 2020 ftulaplandcdispu https://doi.org/10.1016/j.accre.2020.11.008 2024-04-01T16:48:57Z It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equitable mitigation from rising seas. Ice streams control draining of ice sheets; glacier retreat or acceleration serves to greatly increase potential sea level rise. While various climatic geoengineering approaches have been considered, serious consideration of geotechnical approaches has been limited – particularly regarding glaciers. This study summarises novel and extant geotechnical techniques for glacier restraint, identifying candidates for further research. These include draining or freezing the bed; altering surface albedo; creating obstacles: retaining snow; stiffening shear margins with ice; blocking warm sea water entry; thickening ice shelves (increasing buttressing, and strengthening fractured shelves against disintegration); as well as using regional climate engineering or local cloud seeding to cool the glacier or add snow. Not all of these ideas are judged reasonable or feasible, and even fewer are likely to be found to be advisable after further consideration. By describing and evaluating the potential and risks of a large menu of responses – even apparently hopeless ones – we can increase the chances of finding one that works in times of need. Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Greenland Sea Ice Shelves LaCRIS - University of Lapland Current Research System Advances in Climate Change Research 11 4 401 414 |
institution |
Open Polar |
collection |
LaCRIS - University of Lapland Current Research System |
op_collection_id |
ftulaplandcdispu |
language |
English |
topic |
Antarctica Climate intervention Glaciers Greenland Sea level rise Targeted geoengineering /dk/atira/pure/person/fieldofscience2010/1/17/1 name=Geosciences |
spellingShingle |
Antarctica Climate intervention Glaciers Greenland Sea level rise Targeted geoengineering /dk/atira/pure/person/fieldofscience2010/1/17/1 name=Geosciences Lockley, Andrew Wolovick, Michael Keefer, Bowie Gladstone, Rupert Zhao, Li Yun Moore, John C. Glacier geoengineering to address sea-level rise:A geotechnical approach |
topic_facet |
Antarctica Climate intervention Glaciers Greenland Sea level rise Targeted geoengineering /dk/atira/pure/person/fieldofscience2010/1/17/1 name=Geosciences |
description |
It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equitable mitigation from rising seas. Ice streams control draining of ice sheets; glacier retreat or acceleration serves to greatly increase potential sea level rise. While various climatic geoengineering approaches have been considered, serious consideration of geotechnical approaches has been limited – particularly regarding glaciers. This study summarises novel and extant geotechnical techniques for glacier restraint, identifying candidates for further research. These include draining or freezing the bed; altering surface albedo; creating obstacles: retaining snow; stiffening shear margins with ice; blocking warm sea water entry; thickening ice shelves (increasing buttressing, and strengthening fractured shelves against disintegration); as well as using regional climate engineering or local cloud seeding to cool the glacier or add snow. Not all of these ideas are judged reasonable or feasible, and even fewer are likely to be found to be advisable after further consideration. By describing and evaluating the potential and risks of a large menu of responses – even apparently hopeless ones – we can increase the chances of finding one that works in times of need. |
format |
Article in Journal/Newspaper |
author |
Lockley, Andrew Wolovick, Michael Keefer, Bowie Gladstone, Rupert Zhao, Li Yun Moore, John C. |
author_facet |
Lockley, Andrew Wolovick, Michael Keefer, Bowie Gladstone, Rupert Zhao, Li Yun Moore, John C. |
author_sort |
Lockley, Andrew |
title |
Glacier geoengineering to address sea-level rise:A geotechnical approach |
title_short |
Glacier geoengineering to address sea-level rise:A geotechnical approach |
title_full |
Glacier geoengineering to address sea-level rise:A geotechnical approach |
title_fullStr |
Glacier geoengineering to address sea-level rise:A geotechnical approach |
title_full_unstemmed |
Glacier geoengineering to address sea-level rise:A geotechnical approach |
title_sort |
glacier geoengineering to address sea-level rise:a geotechnical approach |
publishDate |
2020 |
url |
https://research.ulapland.fi/fi/publications/a5463fee-6e24-47b6-beca-bc595938e8d6 https://doi.org/10.1016/j.accre.2020.11.008 http://www.scopus.com/inward/record.url?scp=85098509553&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85098509553&partnerID=8YFLogxK |
genre |
Antarc* Antarctica glacier Greenland Greenland Sea Ice Shelves |
genre_facet |
Antarc* Antarctica glacier Greenland Greenland Sea Ice Shelves |
op_source |
Lockley , A , Wolovick , M , Keefer , B , Gladstone , R , Zhao , L Y & Moore , J C 2020 , ' Glacier geoengineering to address sea-level rise : A geotechnical approach ' , Advances in Climate Change Research . https://doi.org/10.1016/j.accre.2020.11.008 |
op_relation |
https://research.ulapland.fi/fi/publications/a5463fee-6e24-47b6-beca-bc595938e8d6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.accre.2020.11.008 |
container_title |
Advances in Climate Change Research |
container_volume |
11 |
container_issue |
4 |
container_start_page |
401 |
op_container_end_page |
414 |
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1797574087197851648 |