The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea
Arctic landfast sea ice (LFSI) represents an important quasi-stationary coastal zone. Its evolution is determined by the regional climate and bathymetry. This study investigated the seasonal cycle and interannual variations of LFSI along the northwest coast of Kotelny Island. Initial freezing, rapid...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/347630 2024-01-07T09:41:31+01:00 The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea Zhai, Mengxi Cheng, Bin Leppäranta, Matti Hui, Fengming Li, Xinqing Demchev, Denis Lei, Ruibo Cheng, Xiao Institute for Atmospheric and Earth System Research (INAR) 2022-08-31T09:36:11Z 13 application/pdf http://hdl.handle.net/10138/347630 eng eng Cambridge University Press 10.1017/jog.2021.85 This study was supported by the National Key Research and Development Program of China (2018YFA0605903, 2019YFC1509101 and 2017YFE0111700), the National Natural Science Foundation of China (41976219 and 41722605) and the Academy of Finland under contract 317999 and the European Union's Horizon 2020 research and innovation program (727890-INTAROS). We acknowledge the use of imagery from the Worldview Snapshots application (https://wvs.earthdata.nasa.gov), which is part of the Earth Observing System Data and Information System (EOSDIS). We acknowledge ESA for offering access to the Envisat ASAR archive through the GPOD service (http://eogrid.esrin.esa.int/). Zhai , M , Cheng , B , Leppäranta , M , Hui , F , Li , X , Demchev , D , Lei , R & Cheng , X 2022 , ' The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea ' , Journal of Glaciology , vol. 68 , no. 267 , pp. 153-165 . https://doi.org/10.1017/jog.2021.85 690e8212-d44e-4893-8bcd-898b9069f664 http://hdl.handle.net/10138/347630 000742401200015 cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess Arctic Ocean ice break-up landfast sea ice remote sensing thermodynamic model LAPTEV SEA INTERANNUAL VARIABILITY CHUKCHI SEA THICKNESS BEAUFORT EROSION REGIMES EXTENT COVER 1171 Geosciences Article publishedVersion 2022 ftunivhelsihelda 2023-12-14T00:02:31Z Arctic landfast sea ice (LFSI) represents an important quasi-stationary coastal zone. Its evolution is determined by the regional climate and bathymetry. This study investigated the seasonal cycle and interannual variations of LFSI along the northwest coast of Kotelny Island. Initial freezing, rapid ice formation, stable and decay stages were identified in the seasonal cycle based on application of the visual inspection approach (VIA) to MODIS/Envisat imagery and results from a thermodynamic snow/ice model. The modeled annual maximum ice thickness in 1995-2014 was 2.02 +/- 0.12 m showing a trend of -0.13 m decade(-1). Shortened ice season length (-22 d decade(-1)) from model results associated with substantial spring (2.3 degrees C decade(-1)) and fall (1.9 degrees C decade(-1)) warming. LFSI break-up resulted from combined fracturing and melting, and the local spatiotemporal patterns of break-up were associated with the irregular bathymetry. Melting dominated the LFSI break-up in the nearshore sheltered area, and the ice thickness decreased to an average of 0.50 m before the LFSI disappeared. For the LFSI adjacent to drift ice, fracturing was the dominant process and the average ice thickness was 1.56 m at the occurrence of the fracturing. The LFSI stages detected by VIA were supported by the model results. Peer reviewed Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea East Siberian Sea Journal of Glaciology Kotelny Island laptev Laptev Sea Sea ice HELDA – University of Helsinki Open Repository Arctic Arctic Ocean Laptev Sea Chukchi Sea East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Journal of Glaciology 68 267 153 165 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Arctic Ocean ice break-up landfast sea ice remote sensing thermodynamic model LAPTEV SEA INTERANNUAL VARIABILITY CHUKCHI SEA THICKNESS BEAUFORT EROSION REGIMES EXTENT COVER 1171 Geosciences |
spellingShingle |
Arctic Ocean ice break-up landfast sea ice remote sensing thermodynamic model LAPTEV SEA INTERANNUAL VARIABILITY CHUKCHI SEA THICKNESS BEAUFORT EROSION REGIMES EXTENT COVER 1171 Geosciences Zhai, Mengxi Cheng, Bin Leppäranta, Matti Hui, Fengming Li, Xinqing Demchev, Denis Lei, Ruibo Cheng, Xiao The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
topic_facet |
Arctic Ocean ice break-up landfast sea ice remote sensing thermodynamic model LAPTEV SEA INTERANNUAL VARIABILITY CHUKCHI SEA THICKNESS BEAUFORT EROSION REGIMES EXTENT COVER 1171 Geosciences |
description |
Arctic landfast sea ice (LFSI) represents an important quasi-stationary coastal zone. Its evolution is determined by the regional climate and bathymetry. This study investigated the seasonal cycle and interannual variations of LFSI along the northwest coast of Kotelny Island. Initial freezing, rapid ice formation, stable and decay stages were identified in the seasonal cycle based on application of the visual inspection approach (VIA) to MODIS/Envisat imagery and results from a thermodynamic snow/ice model. The modeled annual maximum ice thickness in 1995-2014 was 2.02 +/- 0.12 m showing a trend of -0.13 m decade(-1). Shortened ice season length (-22 d decade(-1)) from model results associated with substantial spring (2.3 degrees C decade(-1)) and fall (1.9 degrees C decade(-1)) warming. LFSI break-up resulted from combined fracturing and melting, and the local spatiotemporal patterns of break-up were associated with the irregular bathymetry. Melting dominated the LFSI break-up in the nearshore sheltered area, and the ice thickness decreased to an average of 0.50 m before the LFSI disappeared. For the LFSI adjacent to drift ice, fracturing was the dominant process and the average ice thickness was 1.56 m at the occurrence of the fracturing. The LFSI stages detected by VIA were supported by the model results. Peer reviewed |
author2 |
Institute for Atmospheric and Earth System Research (INAR) |
format |
Article in Journal/Newspaper |
author |
Zhai, Mengxi Cheng, Bin Leppäranta, Matti Hui, Fengming Li, Xinqing Demchev, Denis Lei, Ruibo Cheng, Xiao |
author_facet |
Zhai, Mengxi Cheng, Bin Leppäranta, Matti Hui, Fengming Li, Xinqing Demchev, Denis Lei, Ruibo Cheng, Xiao |
author_sort |
Zhai, Mengxi |
title |
The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
title_short |
The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
title_full |
The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
title_fullStr |
The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
title_full_unstemmed |
The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea |
title_sort |
seasonal cycle and break-up of landfast sea ice along the northwest coast of kotelny island, east siberian sea |
publisher |
Cambridge University Press |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/347630 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean Laptev Sea Chukchi Sea East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Chukchi Sea East Siberian Sea |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea East Siberian Sea Journal of Glaciology Kotelny Island laptev Laptev Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea East Siberian Sea Journal of Glaciology Kotelny Island laptev Laptev Sea Sea ice |
op_relation |
10.1017/jog.2021.85 This study was supported by the National Key Research and Development Program of China (2018YFA0605903, 2019YFC1509101 and 2017YFE0111700), the National Natural Science Foundation of China (41976219 and 41722605) and the Academy of Finland under contract 317999 and the European Union's Horizon 2020 research and innovation program (727890-INTAROS). We acknowledge the use of imagery from the Worldview Snapshots application (https://wvs.earthdata.nasa.gov), which is part of the Earth Observing System Data and Information System (EOSDIS). We acknowledge ESA for offering access to the Envisat ASAR archive through the GPOD service (http://eogrid.esrin.esa.int/). Zhai , M , Cheng , B , Leppäranta , M , Hui , F , Li , X , Demchev , D , Lei , R & Cheng , X 2022 , ' The seasonal cycle and break-up of landfast sea ice along the northwest coast of Kotelny Island, East Siberian Sea ' , Journal of Glaciology , vol. 68 , no. 267 , pp. 153-165 . https://doi.org/10.1017/jog.2021.85 690e8212-d44e-4893-8bcd-898b9069f664 http://hdl.handle.net/10138/347630 000742401200015 |
op_rights |
cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess |
container_title |
Journal of Glaciology |
container_volume |
68 |
container_issue |
267 |
container_start_page |
153 |
op_container_end_page |
165 |
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1787422320380346368 |