Extreme Snow Events along the Coast of the Northeast United States: Analysis of Observations and HiRAM Simulations
文献类型：期刊论文
| 作者 | Chen, Guoxing; Wang, Wei-Chyung; Tao, Lijun2; Hsu, Huang-Hsiung; Tu, Chia-Ying; Cheng, Chao-Tzuen; wcwang@albany.edu |
| 刊名 | JOURNAL OF CLIMATE
 |
| 出版日期 | 2019 |
| 卷号 | 32期号:21页码:7561 |
| 关键词 | North America Synoptic climatology Snowfall Winter cool season Climate change Climate models |
| DOI | 10.1175/JCLI-D-18-0874.1 |
| 英文摘要 | This study used both observations and global climate model simulations to investigate the characteristics of winter extreme snowfall events along the coast (the Interstate 95 corridor) of the northeast United States where several mega-cities are located. Observational analyses indicate that, during 1980-2015, 110 events occurred when four coastal cities-Boston, New York City, Philadelphia, and Washington, D.C.-had either individually or collectively experienced daily snowfall exceeding the local 95th percentile thresholds. Boston had the most events, with a total of 69, followed by 40, 36, and 30 (moving southward) in the other three cities. The associated circulations at 200 and 850 hPa were categorized via K-means clustering. The resulting three composite circulations are characterized by the strength and location of the jet at 200 hPa and the coupled low pressure system at 850 hPa: a strong jet overlying the cities coupled with an inland trough, a weak and slightly southward shifted jet coupled with a cyclone at the coast, and a weak jet stream situated to the south of the cities coupled with a cyclone over the coastal oceans. Comparative analyses were also conducted using the GFDL High Resolution Atmospheric Model (HiRAM) simulation of the same period. Although the simulated extreme events do not provide one-to-one correspondence with observations, the characteristics nevertheless show consistency notably in total number of occurrences, intraseasonal and multiple-year variations, snow spatial coverage, and the associated circulation patterns. Possible future change in extreme snow events was also explored utilizing the HiRAM RCP8.5 (2075-2100) simulation. The analyses suggest that a warming global climate tends to decrease the extreme snowfall events but increase extreme rainfall events. |
| 资助机构 | U.S. National Science FoundationNational Science Foundation (NSF) [1545917]; Partnership for International Research and Education project at the University at Albany; Ministry of Sciences and Technology Taiwan [MOST 107-2119-M-001-010, MOST 108-2119-M-001-014] ; U.S. National Science FoundationNational Science Foundation (NSF) [1545917]; Partnership for International Research and Education project at the University at Albany; Ministry of Sciences and Technology Taiwan [MOST 107-2119-M-001-010, MOST 108-2119-M-001-014] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18207]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China 2.Natl Sci & Technol Ctr Disaster Reduct, Taipei, Taiwan 3.SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA 4.Acad Sinica, Res Ctr Environm Changes, Taipei, Taiwan |
| 推荐引用方式 GB/T 7714 | Chen, Guoxing,Wang, Wei-Chyung,Tao, Lijun,et al. Extreme Snow Events along the Coast of the Northeast United States: Analysis of Observations and HiRAM Simulations[J]. JOURNAL OF CLIMATE,2019,32(21):7561, 7574. |
| APA | Chen, Guoxing.,Wang, Wei-Chyung.,Tao, Lijun.,Hsu, Huang-Hsiung.,Tu, Chia-Ying.,...&wcwang@albany.edu.(2019).Extreme Snow Events along the Coast of the Northeast United States: Analysis of Observations and HiRAM Simulations.JOURNAL OF CLIMATE,32(21),7561. |
| MLA | Chen, Guoxing,et al."Extreme Snow Events along the Coast of the Northeast United States: Analysis of Observations and HiRAM Simulations".JOURNAL OF CLIMATE 32.21(2019):7561. |
入库方式： OAI收割
来源：南海海洋研究所
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