Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0184.1 |
Low-Frequency Climate Modes and Antarctic Sea Ice Variations, 1982-2013 | |
Cerrone, D.1; Fusco, G.1,2 | |
2018 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:1页码:147-175 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | The NCEP-NCAR composite dataset (comprising sea level pressure, 500-hPa geopotential height, 500-hPa temperature, and meridional wind stress at 10 m above the surface) is used for compiling a set of climate indices describing the most important physical modes of variability in the Southern Hemisphere (SH): the southern annular mode (SAM), semiannual oscillation (SAO), Pacific-South American (PSA), and quasi-stationary zonal wavenumber 3 (ZW3) patterns. Compelling evidence indicates that the large increase in the SH sea ice, recorded over recent years, arises from the impact of climate modes and their long-term trends. The examination of variability ranging from seasonal to interdecadal scales, and of trends within the climate patterns and total Antarctic sea ice concentration (SIC) for the 32-yr period (1982-2013), is the key focus of this paper. The results herein indicate that a progressive cooling has affected the year-to-year climate of the sub-Antarctic since the 1990s. This feature is found in association with increased positive SAM and SAO phases detected in terms of upward annual and seasonal trends (in autumn and summer) and upward decadal trends. In addition, the SIC shows upward annual, spring, and summer trends, indicating the insulation of Antarctica from the warmer flows in the midlatitudes. This picture of variations is also found to be consistent with the upward trends detected for the PSA and ZW3 patterns on the annual scale and during the last two decades. Evidence of a more frequent occurrence of the PSA-ZW3 combination could explain, in part, the significant increase of the regional and total Antarctic sea ice coverages. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429528800009 |
WOS关键词 | SOUTHERN ANNULAR MODE ; NOVA BAY POLYNYA ; NCEP-NCAR REANALYSIS ; SEMIANNUAL OSCILLATION ; MANN-KENDALL ; LEVEL PRESSURE ; AUSTRAL SUMMER ; ANNUAL CYCLE ; WEDDELL SEA ; IN-SITU |
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/19711 |
专题 | 气候变化 |
作者单位 | 1.Univ Naples Parthenope, Sci & Technol Dept DiST, Naples, Italy; 2.Consorzio Nazl Interuniv Sci Mare CoNISMa, Rome, Italy |
推荐引用方式 GB/T 7714 | Cerrone, D.,Fusco, G.. Low-Frequency Climate Modes and Antarctic Sea Ice Variations, 1982-2013[J]. JOURNAL OF CLIMATE,2018,31(1):147-175. |
APA | Cerrone, D.,&Fusco, G..(2018).Low-Frequency Climate Modes and Antarctic Sea Ice Variations, 1982-2013.JOURNAL OF CLIMATE,31(1),147-175. |
MLA | Cerrone, D.,et al."Low-Frequency Climate Modes and Antarctic Sea Ice Variations, 1982-2013".JOURNAL OF CLIMATE 31.1(2018):147-175. |
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