The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016
In this study, sea ice thickness (SIT) and sea ice extent (SIE) in the Bohai Sea from 2000 to 2016 were investigated. A surface heat balance equation was applied to calculate SIT using ice surface temperatures estimated from the Moderate Resolution Imaging Spectroradiometer (MODIS) data with input f...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2019-08-01
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| Series: | International Journal of Digital Earth |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17538947.2017.1365957 |
| _version_ | 1797678570157375488 |
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| author | Lunxi Ouyang Fengming Hui Lixian Zhu Xiao Cheng Bin Cheng Mohammed Shokr Jiechen Zhao Minghu Ding Tao Zeng |
| author_facet | Lunxi Ouyang Fengming Hui Lixian Zhu Xiao Cheng Bin Cheng Mohammed Shokr Jiechen Zhao Minghu Ding Tao Zeng |
| author_sort | Lunxi Ouyang |
| collection | DOAJ |
| description | In this study, sea ice thickness (SIT) and sea ice extent (SIE) in the Bohai Sea from 2000 to 2016 were investigated. A surface heat balance equation was applied to calculate SIT using ice surface temperatures estimated from the Moderate Resolution Imaging Spectroradiometer (MODIS) data with input from air temperature and wind speed from reanalyzing weather data. No trend was found in SIT during 2000–2016. The mean SIT and SIE during this period were 5.58±0.86 cm and 23×103±8×103 km2, respectively. The largest SIT and SIE periods were observed during the second half of January and the first half of February, respectively. The Spearman correlation coefficient between mean ice thickness and average air temperature from 21 automatic weather stations around the Bohai Sea was –0.94 (P < .005), and the coefficient between median ice extent and negative accumulated temperature was –0.503 (P < .001). The rate of increase in air temperature around the Bohai Sea is 0.271°C per decade in winter for 1979–2016 (P < .05), which is much lower than that in northern polar area (0.648°C per decade). This rate has not resulted in a decreasing trend in SIT and SIE for the past 16 years in the Bohai Sea. |
| first_indexed | 2024-03-11T23:01:51Z |
| format | Article |
| id | doaj.art-9c664915b6ac4683a18750f77165d3e1 |
| institution | Directory Open Access Journal |
| issn | 1753-8947 1753-8955 |
| language | English |
| last_indexed | 2024-03-11T23:01:51Z |
| publishDate | 2019-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Digital Earth |
| spelling | doaj.art-9c664915b6ac4683a18750f77165d3e12023-09-21T14:38:06ZengTaylor & Francis GroupInternational Journal of Digital Earth1753-89471753-89552019-08-0112889390910.1080/17538947.2017.13659571365957The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016Lunxi Ouyang0Fengming Hui1Lixian Zhu2Xiao Cheng3Bin Cheng4Mohammed Shokr5Jiechen Zhao6Minghu Ding7Tao Zeng8Beijing Normal UniversityBeijing Normal UniversityBeijing Normal UniversityBeijing Normal UniversityFinnish Meteorological InstituteEnvironment CanadaNational Marine Environmental Forecasting CenterChinese Academy of Meteorological SciencesState Oceanic AdministrationIn this study, sea ice thickness (SIT) and sea ice extent (SIE) in the Bohai Sea from 2000 to 2016 were investigated. A surface heat balance equation was applied to calculate SIT using ice surface temperatures estimated from the Moderate Resolution Imaging Spectroradiometer (MODIS) data with input from air temperature and wind speed from reanalyzing weather data. No trend was found in SIT during 2000–2016. The mean SIT and SIE during this period were 5.58±0.86 cm and 23×103±8×103 km2, respectively. The largest SIT and SIE periods were observed during the second half of January and the first half of February, respectively. The Spearman correlation coefficient between mean ice thickness and average air temperature from 21 automatic weather stations around the Bohai Sea was –0.94 (P < .005), and the coefficient between median ice extent and negative accumulated temperature was –0.503 (P < .001). The rate of increase in air temperature around the Bohai Sea is 0.271°C per decade in winter for 1979–2016 (P < .05), which is much lower than that in northern polar area (0.648°C per decade). This rate has not resulted in a decreasing trend in SIT and SIE for the past 16 years in the Bohai Sea.http://dx.doi.org/10.1080/17538947.2017.1365957sea icethe bohai seaglobal warmingice thicknessice extent |
| spellingShingle | Lunxi Ouyang Fengming Hui Lixian Zhu Xiao Cheng Bin Cheng Mohammed Shokr Jiechen Zhao Minghu Ding Tao Zeng The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 International Journal of Digital Earth sea ice the bohai sea global warming ice thickness ice extent |
| title | The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 |
| title_full | The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 |
| title_fullStr | The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 |
| title_full_unstemmed | The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 |
| title_short | The spatiotemporal patterns of sea ice in the Bohai Sea during the winter seasons of 2000–2016 |
| title_sort | spatiotemporal patterns of sea ice in the bohai sea during the winter seasons of 2000 2016 |
| topic | sea ice the bohai sea global warming ice thickness ice extent |
| url | http://dx.doi.org/10.1080/17538947.2017.1365957 |
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