Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys
Snow depth and sea ice thickness in the Polar Regions are significant indicators of climate change and have been measured over several decades by ice-tethered buoys. However, sea ice temperature profiles measured by ice-tethered buoys are rarely used to infer snow depth and sea ice thickness owing t...
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ftdoajarticles:oai:doaj.org/article:bfb5d2200b7f4eaa91c3565175358b45 2023-05-15T13:48:30+02:00 Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys Guangyu Zuo Yinke Dou Ruibo Lei 2018-11-01T00:00:00Z https://doi.org/10.3390/s18124162 https://doaj.org/article/bfb5d2200b7f4eaa91c3565175358b45 EN eng MDPI AG https://www.mdpi.com/1424-8220/18/12/4162 https://doaj.org/toc/1424-8220 1424-8220 doi:10.3390/s18124162 https://doaj.org/article/bfb5d2200b7f4eaa91c3565175358b45 Sensors, Vol 18, Iss 12, p 4162 (2018) snow depth ice thickness ice-tethered buoys temperature profiles discrimination algorithm Chemical technology TP1-1185 article 2018 ftdoajarticles https://doi.org/10.3390/s18124162 2022-12-30T20:05:59Z Snow depth and sea ice thickness in the Polar Regions are significant indicators of climate change and have been measured over several decades by ice-tethered buoys. However, sea ice temperature profiles measured by ice-tethered buoys are rarely used to infer snow depth and sea ice thickness owing to the lack of automatic discrimination algorithms, restricting the use of the data for sea ice thermodynamics studies. In this study, snow depth and sea ice thickness were retrieved through the measurements of sea ice temperature profiles using discrimination algorithms of the change point and the maximum likelihood detection methods. The data measured by 50 ice-tethered buoys were used to evaluate the accuracy of the results determined by the algorithm. Influences on the seasonal sea ice thermodynamic state, vertical interval of temperature sensors on the buoys, and initial ice thickness on the estimation errors were also evaluated. The performance of the discrimination algorithm for the data from the Arctic and Antarctic regions was also compared. There were no identifiable differences between the estimation errors from the Arctic and Antarctica. Increases in both the interval of the temperature sensors and the initial ice thickness enlarged the error for the estimation of ice thickness. A procedure developed in this study strengthens the potential application of measurements from the ice-tethered buoys only with the measurements of the vertical temperature profile of the layer of snow-covered ice, but not the measurements of ice basal and surface positions using acoustic sounding. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Climate change Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Antarctic Sensors 18 12 4162 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
snow depth ice thickness ice-tethered buoys temperature profiles discrimination algorithm Chemical technology TP1-1185 |
spellingShingle |
snow depth ice thickness ice-tethered buoys temperature profiles discrimination algorithm Chemical technology TP1-1185 Guangyu Zuo Yinke Dou Ruibo Lei Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
topic_facet |
snow depth ice thickness ice-tethered buoys temperature profiles discrimination algorithm Chemical technology TP1-1185 |
description |
Snow depth and sea ice thickness in the Polar Regions are significant indicators of climate change and have been measured over several decades by ice-tethered buoys. However, sea ice temperature profiles measured by ice-tethered buoys are rarely used to infer snow depth and sea ice thickness owing to the lack of automatic discrimination algorithms, restricting the use of the data for sea ice thermodynamics studies. In this study, snow depth and sea ice thickness were retrieved through the measurements of sea ice temperature profiles using discrimination algorithms of the change point and the maximum likelihood detection methods. The data measured by 50 ice-tethered buoys were used to evaluate the accuracy of the results determined by the algorithm. Influences on the seasonal sea ice thermodynamic state, vertical interval of temperature sensors on the buoys, and initial ice thickness on the estimation errors were also evaluated. The performance of the discrimination algorithm for the data from the Arctic and Antarctic regions was also compared. There were no identifiable differences between the estimation errors from the Arctic and Antarctica. Increases in both the interval of the temperature sensors and the initial ice thickness enlarged the error for the estimation of ice thickness. A procedure developed in this study strengthens the potential application of measurements from the ice-tethered buoys only with the measurements of the vertical temperature profile of the layer of snow-covered ice, but not the measurements of ice basal and surface positions using acoustic sounding. |
format |
Article in Journal/Newspaper |
author |
Guangyu Zuo Yinke Dou Ruibo Lei |
author_facet |
Guangyu Zuo Yinke Dou Ruibo Lei |
author_sort |
Guangyu Zuo |
title |
Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
title_short |
Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
title_full |
Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
title_fullStr |
Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
title_full_unstemmed |
Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys |
title_sort |
discrimination algorithm and procedure of snow depth and sea ice thickness determination using measurements of the vertical ice temperature profile by the ice-tethered buoys |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/s18124162 https://doaj.org/article/bfb5d2200b7f4eaa91c3565175358b45 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice |
op_source |
Sensors, Vol 18, Iss 12, p 4162 (2018) |
op_relation |
https://www.mdpi.com/1424-8220/18/12/4162 https://doaj.org/toc/1424-8220 1424-8220 doi:10.3390/s18124162 https://doaj.org/article/bfb5d2200b7f4eaa91c3565175358b45 |
op_doi |
https://doi.org/10.3390/s18124162 |
container_title |
Sensors |
container_volume |
18 |
container_issue |
12 |
container_start_page |
4162 |
_version_ |
1766249325982121984 |