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| DOI | 10.1175/JCLI-D-20-0604.1 |
| Climatology of Borneo Vortices in the HadGEM3-GC3.1 general circulation model | |
| Liang J.; Catto J.L.; Hawcroft M.; Hodges K.I.; Tan M.L.; Haywood J.M. | |
| 发表日期 | 2021 |
| ISSN | 08948755 |
| 起始页码 | 3401 |
| 结束页码 | 3419 |
| 卷号 | 34期号:9 |
| 英文摘要 | Borneo vortices (BVs) are intense precipitating winter storms that develop over the equatorial South China Sea and strongly affect the weather and climate over the western Maritime Continent because of their association with deep convection and heavy rainfall. In this study, the ability of the Hadley Centre Global Environment Model 3-Global Coupled, version 3.1 (HadGEM3-GC3.1), global climate model to simulate the climatology of BVs at different horizontal resolutions is examined using an objective feature-tracking algorithm. The HadGEM3-GC3.1 at the N512 (25 km) horizontal resolution simulates BVs with well-represented characteristics, including their frequency, spatial distribution, and lower-tropospheric structures when compared with BVs identified in a climate reanalysis, whereas the BVs in the N96 (;135 km) and N216 (;65 km) simulations are much weaker and less frequent. Also, the N512 simulation better captures the contribution of BVs to the winter precipitation in Borneo and the Malay Peninsula when compared with precipitation from a reanalysis data and from observations, whereas the N96 and N216 simulations underestimate this contribution because of the overly weak low-level convergence of the simulated BVs. The N512 simulation also exhibits an improved ability to reproduce the modulation of BV activity by the occurrence of northeasterly cold surges and active phases of the Madden-Julian oscillation in the region, including increased BV track densities, intensities, and lifetimes. A sufficiently high model resolution is thus found to be important to realistically simulate the present-climate precipitation extremes associated with BVs and to study their possible changes in a warmer climate. © 2021 American Meteorological Society |
| 英文关键词 | Climate models; Convective storms; Maritime Continent; Precipitation; Tropical variability |
| 语种 | 英语 |
| scopus关键词 | Climatology; Horizontal wells; Storms; Vortex flow; Feature tracking algorithm; General circulation model; Global climate model; Global environment; Horizontal resolution; Madden-Julian oscillation; Precipitation extremes; Winter precipitation; Climate models |
| 来源期刊 | Journal of Climate
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/178609 |
| 作者单位 | College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; University of Southern Queensland, Toowoomba, QLD, Australia; Met Office, Exeter, United Kingdom; Department of Meteorology, University of Reading, Reading, United Kingdom; Geoinformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, Penang, Malaysia |
| 推荐引用方式 GB/T 7714 | Liang J.,Catto J.L.,Hawcroft M.,et al. Climatology of Borneo Vortices in the HadGEM3-GC3.1 general circulation model[J],2021,34(9). |
| APA | Liang J.,Catto J.L.,Hawcroft M.,Hodges K.I.,Tan M.L.,&Haywood J.M..(2021).Climatology of Borneo Vortices in the HadGEM3-GC3.1 general circulation model.Journal of Climate,34(9). |
| MLA | Liang J.,et al."Climatology of Borneo Vortices in the HadGEM3-GC3.1 general circulation model".Journal of Climate 34.9(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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