Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean
The accuracy of sea-ice motion products provided by the National Snow and Ice Data Center (NSIDC) and the Ocean and Sea Ice Satellite Application Facility (OSI-SAF) was validated with data collected by ice drifters that were deployed in the western Arctic Ocean in 2014 and 2016. Data from both NSIDC...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2020-10-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143020000490/type/journal_article |
| _version_ | 1811155820656721920 |
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| author | Dawei Gui Ruibo Lei Xiaoping Pang Jennifer K. Hutchings Guangyu Zuo Mengxi Zhai |
| author_facet | Dawei Gui Ruibo Lei Xiaoping Pang Jennifer K. Hutchings Guangyu Zuo Mengxi Zhai |
| author_sort | Dawei Gui |
| collection | DOAJ |
| description | The accuracy of sea-ice motion products provided by the National Snow and Ice Data Center (NSIDC) and the Ocean and Sea Ice Satellite Application Facility (OSI-SAF) was validated with data collected by ice drifters that were deployed in the western Arctic Ocean in 2014 and 2016. Data from both NSIDC and OSI-SAF products exhibited statistically significant (p < 0.001) correlation with drifter data. The OSI-SAF product tended to overestimate ice speed, while underestimation was demonstrated for the NSIDC product, especially for the melt season and the marginal ice zone. Monthly Lagrangian trajectories of ice floes were reconstructed using the products. Larger spatial variability in the deviation between NSIDC and drifter trajectories was observed than that of OSI-SAF, and seasonal variability in the deviation for NSIDC was observed. Furthermore, trajectories reconstructed using the NSIDC product were sensitive to variations in sea-ice concentration. The feasibility of using remote-sensing products to characterize sea-ice deformation was assessed by evaluating the distance between two arbitrary positions as estimated by the products. Compared with the OSI-SAF product, relative errors are lower (<11.6%), and spatial-temporal resolutions are higher in the NSIDC product, which makes it more suitable for estimating sea-ice deformation. |
| first_indexed | 2024-04-10T04:41:05Z |
| format | Article |
| id | doaj.art-c0bb6118516341259d7259cc6e8c9792 |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:41:05Z |
| publishDate | 2020-10-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-c0bb6118516341259d7259cc6e8c97922023-03-09T12:40:58ZengCambridge University PressJournal of Glaciology0022-14301727-56522020-10-016680782110.1017/jog.2020.49Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic OceanDawei Gui0Ruibo Lei1Xiaoping Pang2Jennifer K. Hutchings3Guangyu Zuo4Mengxi Zhai5Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan, China MNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, ChinaChinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan, China MNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, ChinaChinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan, ChinaCollege of Earth Ocean and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USACollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, ChinaMNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, ChinaThe accuracy of sea-ice motion products provided by the National Snow and Ice Data Center (NSIDC) and the Ocean and Sea Ice Satellite Application Facility (OSI-SAF) was validated with data collected by ice drifters that were deployed in the western Arctic Ocean in 2014 and 2016. Data from both NSIDC and OSI-SAF products exhibited statistically significant (p < 0.001) correlation with drifter data. The OSI-SAF product tended to overestimate ice speed, while underestimation was demonstrated for the NSIDC product, especially for the melt season and the marginal ice zone. Monthly Lagrangian trajectories of ice floes were reconstructed using the products. Larger spatial variability in the deviation between NSIDC and drifter trajectories was observed than that of OSI-SAF, and seasonal variability in the deviation for NSIDC was observed. Furthermore, trajectories reconstructed using the NSIDC product were sensitive to variations in sea-ice concentration. The feasibility of using remote-sensing products to characterize sea-ice deformation was assessed by evaluating the distance between two arbitrary positions as estimated by the products. Compared with the OSI-SAF product, relative errors are lower (<11.6%), and spatial-temporal resolutions are higher in the NSIDC product, which makes it more suitable for estimating sea-ice deformation.https://www.cambridge.org/core/product/identifier/S0022143020000490/type/journal_articleIce drifterLagrangian trajectoryremote-sensing productsea-ice motionspatial-temporal variationvalidation |
| spellingShingle | Dawei Gui Ruibo Lei Xiaoping Pang Jennifer K. Hutchings Guangyu Zuo Mengxi Zhai Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean Journal of Glaciology Ice drifter Lagrangian trajectory remote-sensing product sea-ice motion spatial-temporal variation validation |
| title | Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean |
| title_full | Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean |
| title_fullStr | Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean |
| title_full_unstemmed | Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean |
| title_short | Validation of remote-sensing products of sea-ice motion: a case study in the western Arctic Ocean |
| title_sort | validation of remote sensing products of sea ice motion a case study in the western arctic ocean |
| topic | Ice drifter Lagrangian trajectory remote-sensing product sea-ice motion spatial-temporal variation validation |
| url | https://www.cambridge.org/core/product/identifier/S0022143020000490/type/journal_article |
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