Influence of mesoscale sea surface temperature anomaly on polar lows
| العنوان: | Influence of mesoscale sea surface temperature anomaly on polar lows |
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| المؤلفون: | Lin, Ting, Rutgersson, Anna, 1971, Wu, Lichuan |
| المصدر: | Environmental Research Letters. 20(1) |
| مصطلحات موضوعية: | polar lows, mesoscale eddies, air-sea interaction |
| الوصف: | Sea surface temperature anomaly (SSTA) associated with mesoscale oceanic processes, which are prevalent throughout the ocean, can significantly influence the atmospheric boundary layer and consequently atmospheric systems. While its influences on tropical and extratropical cyclones have been well-documented, the influence of mesoscale SSTA on polar lows (PLs) remains unexplored. To bridge this knowledge gap, we conducted a series of sensitivity numerical experiments with different SST configurations. The simulation results indicate that, over the lifespan of a PL, SSTA does not significantly influence PL intensity but does enhance latent heat release. On a longer time scale, based on simulations of five winter seasons over the Nordic Sea, we found that the accumulated impact of mesoscale SSTA creates favorable environments for PL intensification, characterized by higher moisture levels and lower static stability. These results highlight the importance of considering high-resolution SST boundary conditions, i.e. resolving mesoscale SST, in climate simulations of PLs. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-547411 https://doi.org/10.1088/1748-9326/ad9ec6 https://uu.diva-portal.org/smash/get/diva2:1928131/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
| DOI: | 10.1088/1748-9326/ad9ec6 |
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