Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice
Abstract Documenting changes in the Arctic sea‐ice variability are essential for understanding the spring sea‐ice predictability barrier. While Tibetan Plateau snow cover (TPSC) has been linked to Arctic sea‐ice variability, the spatiotemporal stability of this relationship remains unclear. In this...
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2025GL116351 |
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| author | Chao Zhang Anmin Duan XiaoJing Jia Shizuo Liu |
| author_facet | Chao Zhang Anmin Duan XiaoJing Jia Shizuo Liu |
| author_sort | Chao Zhang |
| collection | DOAJ |
| description | Abstract Documenting changes in the Arctic sea‐ice variability are essential for understanding the spring sea‐ice predictability barrier. While Tibetan Plateau snow cover (TPSC) has been linked to Arctic sea‐ice variability, the spatiotemporal stability of this relationship remains unclear. In this study, combing satellite observations and snow experiments, we identified a shift in connections between TPSC and Barents‐Kara Seas sea‐ice around 1990. Before 1990, a positive dipole TPSC pattern (eastern enhanced/western reduced snow cover) induces Arctic anticyclonic anomalies through a circumglobal wave train. These anomalies facilitate polar vortex splitting, enhancing moisture transport and solar radiation over the northern Kara Sea, which accelerates sea‐ice reduction. Conversely, post‐1990, a positive monopole TPSC pattern (positive snow anomalies on the entire Tibetan Plateau) strengthens the polar vortex, suppressing Barents Sea (BS) moisture and solar radiation, thereby promoting sea‐ice growth. This regime shifts underscore TPSC's capacity to modulate Arctic sea‐ice dynamics through polar vortex system. |
| format | Article |
| id | doaj-art-636a4db00e7b45f29e466c2d5b6c4200 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-636a4db00e7b45f29e466c2d5b6c42002025-08-20T03:58:44ZengWileyGeophysical Research Letters0094-82761944-80072025-07-015214n/an/a10.1029/2025GL116351Connecting Tibetan Plateau Snow Change With Arctic Sea‐IceChao Zhang0Anmin Duan1XiaoJing Jia2Shizuo Liu3Center for Marine Meteorology and Climate Change College of Ocean and Earth Sciences State Key Laboratory of Marine Environmental Science Xiamen University Xiamen ChinaCenter for Marine Meteorology and Climate Change College of Ocean and Earth Sciences State Key Laboratory of Marine Environmental Science Xiamen University Xiamen ChinaKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province School of Earth Sciences Zhejiang University Hangzhou ChinaNicholas School of the Environment Duke University Durham NC USAAbstract Documenting changes in the Arctic sea‐ice variability are essential for understanding the spring sea‐ice predictability barrier. While Tibetan Plateau snow cover (TPSC) has been linked to Arctic sea‐ice variability, the spatiotemporal stability of this relationship remains unclear. In this study, combing satellite observations and snow experiments, we identified a shift in connections between TPSC and Barents‐Kara Seas sea‐ice around 1990. Before 1990, a positive dipole TPSC pattern (eastern enhanced/western reduced snow cover) induces Arctic anticyclonic anomalies through a circumglobal wave train. These anomalies facilitate polar vortex splitting, enhancing moisture transport and solar radiation over the northern Kara Sea, which accelerates sea‐ice reduction. Conversely, post‐1990, a positive monopole TPSC pattern (positive snow anomalies on the entire Tibetan Plateau) strengthens the polar vortex, suppressing Barents Sea (BS) moisture and solar radiation, thereby promoting sea‐ice growth. This regime shifts underscore TPSC's capacity to modulate Arctic sea‐ice dynamics through polar vortex system.https://doi.org/10.1029/2025GL116351Tibetan Plateau snow coverArctic sea‐iceinterannual variabilitysnow simulation experiments |
| spellingShingle | Chao Zhang Anmin Duan XiaoJing Jia Shizuo Liu Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice Geophysical Research Letters Tibetan Plateau snow cover Arctic sea‐ice interannual variability snow simulation experiments |
| title | Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice |
| title_full | Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice |
| title_fullStr | Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice |
| title_full_unstemmed | Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice |
| title_short | Connecting Tibetan Plateau Snow Change With Arctic Sea‐Ice |
| title_sort | connecting tibetan plateau snow change with arctic sea ice |
| topic | Tibetan Plateau snow cover Arctic sea‐ice interannual variability snow simulation experiments |
| url | https://doi.org/10.1029/2025GL116351 |
| work_keys_str_mv | AT chaozhang connectingtibetanplateausnowchangewitharcticseaice AT anminduan connectingtibetanplateausnowchangewitharcticseaice AT xiaojingjia connectingtibetanplateausnowchangewitharcticseaice AT shizuoliu connectingtibetanplateausnowchangewitharcticseaice |