globalchange  > 气候变化事实与影响
DOI: 10.5194/cp-15-463-2019
WOS记录号: WOS:000461783200001
论文题名:
Western Mediterranean hydro-climatic consequences of Holocene ice-rafted debris (Bond) events
作者: Zielhofer, Christoph1; Koehler, Anne1; Mischke, Steffen2; Benkaddour, Abdelfattah3; Mikdad, Abdeslam4; Fletcher, William J.5
通讯作者: Zielhofer, Christoph
刊名: CLIMATE OF THE PAST
ISSN: 1814-9324
EISSN: 1814-9332
出版年: 2019
卷: 15, 期:2, 页码:463-475
语种: 英语
WOS关键词: NORTH-ATLANTIC OSCILLATION ; LOWER MOULOUYA RIVER ; PRECIPITATION VARIABILITY ; ALLUVIAL ARCHIVES ; FLUVIAL DYNAMICS ; MULTI-PROXY ; SCALE ; RECORD ; CYCLE ; CIRCULATION
WOS学科分类: Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向: Geology ; Meteorology & Atmospheric Sciences
英文摘要:

Gerard C. Bond established a Holocene series of North Atlantic ice-rafted debris events based on quartz and haematite-stained grains recovered from subpolar North Atlantic marine cores. These so-called "Bond events" document nine large-scale and multi-centennial North Atlantic cooling phases that might be linked to a reduced thermohaline circulation. Regardless of the high prominence of the Holocene North Atlantic ice-rafted debris record, there are critical scientific comments on the study: the Holocene Bond curve has not yet been replicated in other marine archives of the North Atlantic and there exist only very few palaeoclimatic studies that indicate all individual Bond events in their own record. Therefore, evidence of consistent hydro-climatic teleconnections between the subpolar North Atlantic and distant regions is not clear. In this context, the Western Mediterranean region presents key hydro-climatic sites for the reconstruction of a teleconnection with the subpolar North Atlantic. In particular, variability in Western Mediterranean winter precipitation might be the result of atmosphere-ocean coupled processes in the outer-tropical North Atlantic realm. Based on an improved Holocene delta O-18 record from Lake Sidi Ali (Middle Atlas, Morocco), we correlate Western Mediterranean precipitation anomalies with North Atlantic Bond events to identify a probable teleconnection between Western Mediterranean winter rains and subpolar North Atlantic cooling phases. Our data show a noticeable similarity between Western Mediterranean winter rain minima and Bond events during the Early Holocene and an opposite pattern during the Late Holocene. There is evidence of an enduring hydro-climatic change in the overall Atlantic atmosphere-ocean system and the response to external forcing during the Middle Holocene. Regarding a potential climatic anomaly around 4.2 ka (Bond event 3) in the Western Mediterranean, a centennial-scale winter rain maximum is generally in-phase with the overall pattern of alternating "wet and cool" and "dry and warm" intervals during the last 5000 years.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/132230
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: 1.Univ Leipzig, Inst Geog, D-04103 Leipzig, Germany
2.Univ Iceland, Fac Earth Sci, IS-101 Reykjavik, Iceland
3.Cadi Ayyad Univ, Fac Sci & Technol, Dept Earth Sci, Marrakech, Morocco
4.Inst Natl Sci Archeol & Patrimoine, Rabat, Morocco
5.Univ Manchester, Sch Environm Educ & Dev, Dept Geog, Manchester M13 9PL, Lancs, England

Recommended Citation:
Zielhofer, Christoph,Koehler, Anne,Mischke, Steffen,et al. Western Mediterranean hydro-climatic consequences of Holocene ice-rafted debris (Bond) events[J]. CLIMATE OF THE PAST,2019-01-01,15(2):463-475
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zielhofer, Christoph]'s Articles
[Koehler, Anne]'s Articles
[Mischke, Steffen]'s Articles
百度学术
Similar articles in Baidu Scholar
[Zielhofer, Christoph]'s Articles
[Koehler, Anne]'s Articles
[Mischke, Steffen]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zielhofer, Christoph]‘s Articles
[Koehler, Anne]‘s Articles
[Mischke, Steffen]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.