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DOI | 10.1007/s00382-017-4049-3 |
Diagnosing sea ice from the north american multi model ensemble and implications on mid-latitude winter climate | |
Elders, Akiko1; Pegion, Kathy1,2 | |
2019-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53期号:12页码:7237-7250 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Arctic sea ice plays an important role in the climate system, moderating the exchange of energy and moisture between the ocean and the atmosphere. An emerging area of research investigates how changes, particularly declines, in sea ice extent (SIE) impact climate in regions local to and remote from the Arctic. Therefore, both observations and model estimates of sea ice become important. This study investigates the skill of sea ice predictions from models participating in the North American Multi-Model Ensemble (NMME) project. Three of the models in this project provide sea-ice predictions. The ensemble average of these models is used to determine seasonal climate impacts on surface air temperature (SAT) and sea level pressure (SLP) in remote regions such as the mid-latitudes. It is found that declines in fall SIE are associated with cold temperatures in the mid-latitudes and pressure patterns across the Arctic and mid-latitudes similar to the negative phase of the Arctic Oscillation (AO). These findings are consistent with other studies that have investigated the relationship between declines in SIE and mid-latitude weather and climate. In an attempt to include additional NMME models for sea-ice predictions, a proxy for SIE is used to estimate ice extent in the remaining models, using sea surface temperature (SST). It is found that SST is a reasonable proxy for SIE estimation when compared to model SIE forecasts and observations. The proxy sea-ice estimates also show similar relationships to mid-latitude temperature and pressure as the actual sea-ice predictions. |
英文关键词 | Arctic Sea ice Climate change Mid-latitude winter weather North American Multi-Model Ensemble |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000495247200008 |
WOS关键词 | ATMOSPHERIC CIRCULATION ; ARCTIC AMPLIFICATION ; FORECAST SKILL ; PREDICTION ; EXTENT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224290 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.George Mason Univ, Dept Atmospher Ocean & Earth Sci, 4400 Univ Dr, Fairfax, VA 22030 USA; 2.George Mason Univ, Ctr Ocean Land Atmosphere Studies, 4400 Univ Dr, Fairfax, VA 22030 USA |
推荐引用方式 GB/T 7714 | Elders, Akiko,Pegion, Kathy. Diagnosing sea ice from the north american multi model ensemble and implications on mid-latitude winter climate[J]. CLIMATE DYNAMICS,2019,53(12):7237-7250. |
APA | Elders, Akiko,&Pegion, Kathy.(2019).Diagnosing sea ice from the north american multi model ensemble and implications on mid-latitude winter climate.CLIMATE DYNAMICS,53(12),7237-7250. |
MLA | Elders, Akiko,et al."Diagnosing sea ice from the north american multi model ensemble and implications on mid-latitude winter climate".CLIMATE DYNAMICS 53.12(2019):7237-7250. |
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