Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago
The Svalbard Archipelago represents the northernmost place on Earth where cryospheric hazards, such as thaw slumps (TSs) and thermo-erosion gullies (TEGs) could take place and rapidly develop under the influence of climatic variations. Svalbard permafrost is specifically sensitive to rapidly occurri...
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ftniku:oai:niku.brage.unit.no:11250/3061110 2024-10-06T13:46:10+00:00 Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago Nicu, Ionut Cristi Elia, Letizia 2023 application/pdf https://hdl.handle.net/11250/3061110 https://doi.org/10.5194/essd-15-447-2023 eng eng Earth System Science Data. 2023, 15 447-464. urn:issn:1866-3508 https://hdl.handle.net/11250/3061110 https://doi.org/10.5194/essd-15-447-2023 cristin:2120108 447-464 15 Earth System Science Data Peer reviewed Journal article 2023 ftniku https://doi.org/10.5194/essd-15-447-2023 2024-09-10T00:00:53Z The Svalbard Archipelago represents the northernmost place on Earth where cryospheric hazards, such as thaw slumps (TSs) and thermo-erosion gullies (TEGs) could take place and rapidly develop under the influence of climatic variations. Svalbard permafrost is specifically sensitive to rapidly occurring warming, and therefore, a deeper understanding of TSs and TEGs is necessary to understand and foresee the dynamics behind local cryospheric hazards' occurrences and their global implications. We present the latest update of two polygonal inventories where the extent of TSs and TEGs is recorded across Nordenskiöld Land (Svalbard Archipelago), over a surface of approximately 4000 km2. This area was chosen because it represents the most concentrated ice-free area of the Svalbard Archipelago and, at the same time, where most of the current human settlements are concentrated. The inventories were created through the visual interpretation of high-resolution aerial photographs as part of our ongoing effort toward creating a pan-Arctic repository of TSs and TEGs. Overall, we mapped 562 TSs and 908 TEGs, from which we separately generated two susceptibility maps using a generalised additive model (GAM) approach, under the assumption that TSs and TEGs manifest across Nordenskiöld Land, according to a Bernoulli probability distribution. Once the modelling results were validated, the two susceptibility patterns were combined into the first multi-hazard cryospheric susceptibility map of the area. The two inventories are available at https://doi.org/10.1594/PANGAEA.945348 (Nicu et al., 2022a) and https://doi.org/10.1594/PANGAEA.945395 (Nicu et al., 2022b). Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago publishedVersion Article in Journal/Newspaper Arctic Ice Nordenskiöld Land permafrost Svalbard Norwegian Institute for Cultural Heritage Research (NIKU): Brage Arctic Svalbard Svalbard Archipelago Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Nordenskiöld Land ENVELOPE(15.000,15.000,77.833,77.833) Earth System Science Data 15 1 447 464 |
institution |
Open Polar |
collection |
Norwegian Institute for Cultural Heritage Research (NIKU): Brage |
op_collection_id |
ftniku |
language |
English |
description |
The Svalbard Archipelago represents the northernmost place on Earth where cryospheric hazards, such as thaw slumps (TSs) and thermo-erosion gullies (TEGs) could take place and rapidly develop under the influence of climatic variations. Svalbard permafrost is specifically sensitive to rapidly occurring warming, and therefore, a deeper understanding of TSs and TEGs is necessary to understand and foresee the dynamics behind local cryospheric hazards' occurrences and their global implications. We present the latest update of two polygonal inventories where the extent of TSs and TEGs is recorded across Nordenskiöld Land (Svalbard Archipelago), over a surface of approximately 4000 km2. This area was chosen because it represents the most concentrated ice-free area of the Svalbard Archipelago and, at the same time, where most of the current human settlements are concentrated. The inventories were created through the visual interpretation of high-resolution aerial photographs as part of our ongoing effort toward creating a pan-Arctic repository of TSs and TEGs. Overall, we mapped 562 TSs and 908 TEGs, from which we separately generated two susceptibility maps using a generalised additive model (GAM) approach, under the assumption that TSs and TEGs manifest across Nordenskiöld Land, according to a Bernoulli probability distribution. Once the modelling results were validated, the two susceptibility patterns were combined into the first multi-hazard cryospheric susceptibility map of the area. The two inventories are available at https://doi.org/10.1594/PANGAEA.945348 (Nicu et al., 2022a) and https://doi.org/10.1594/PANGAEA.945395 (Nicu et al., 2022b). Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago publishedVersion |
format |
Article in Journal/Newspaper |
author |
Nicu, Ionut Cristi Elia, Letizia |
spellingShingle |
Nicu, Ionut Cristi Elia, Letizia Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
author_facet |
Nicu, Ionut Cristi Elia, Letizia |
author_sort |
Nicu, Ionut Cristi |
title |
Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
title_short |
Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
title_full |
Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
title_fullStr |
Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
title_full_unstemmed |
Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago |
title_sort |
multi-hazard susceptibility mapping of cryospheric hazards in a high-arctic environment: svalbard archipelago |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3061110 https://doi.org/10.5194/essd-15-447-2023 |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) ENVELOPE(15.000,15.000,77.833,77.833) |
geographic |
Arctic Svalbard Svalbard Archipelago Gam Nordenskiöld Land |
geographic_facet |
Arctic Svalbard Svalbard Archipelago Gam Nordenskiöld Land |
genre |
Arctic Ice Nordenskiöld Land permafrost Svalbard |
genre_facet |
Arctic Ice Nordenskiöld Land permafrost Svalbard |
op_source |
447-464 15 Earth System Science Data |
op_relation |
Earth System Science Data. 2023, 15 447-464. urn:issn:1866-3508 https://hdl.handle.net/11250/3061110 https://doi.org/10.5194/essd-15-447-2023 cristin:2120108 |
op_doi |
https://doi.org/10.5194/essd-15-447-2023 |
container_title |
Earth System Science Data |
container_volume |
15 |
container_issue |
1 |
container_start_page |
447 |
op_container_end_page |
464 |
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1812174496372621312 |