The "Hockey Stick" Imprint in Northwest African Speleothems
文献类型：期刊论文
| 作者 | Sha, Lijuan1; Brahim, Yassine Ait2; Wassenburg, Jasper A.3,4; Yin, Jianjun5; Lu, Jiayu1; Cruz, Francisco W.6; Cai, Yanjun1; Edwards, R. Lawrence7; Cheng, Hai1,5,8 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2021-09-16 |
| 卷号 | 48期号:17页码:11 |
| 关键词 | speleothems Hockey Stick Northwest Africa global warming SST upwelling |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2021GL094232 |
| 通讯作者 | Sha, Lijuan(shalijuan@xjtu.edu.cn) ; Cheng, Hai(cheng021@xjtu.edu.cn) |
| 英文摘要 | We present absolutely dated speleothem delta O-18 records spanning the past similar to 1.5 kyr, which provide new evidence of the transmission of an anthropogenic signal to natural climatic archives in NW Africa. Combined with three other speleothem delta O-18 records from SW Morocco, the results indicate unprecedentedly dry conditions during the 20th century, which developed more rapidly than those during the Medieval Climate Anomaly (900-1350 CE), likely due to rising atmospheric CO2 levels. The 20th century drying evident in the speleothem records is consistent with the "Hockey Stick" pattern of increasing temperatures due to global warming. We demonstrate that this rapid drying is linked to warmer sea surface temperatures (SSTs) over the Azores High region, and cooler local SSTs off the coast of NW Africa. These changes intensified the Canary Current Upwelling, which promoted increased biological productivity in the surface water and enhanced the coastal fishing industry in Morocco. |
| WOS关键词 | NORTHERN-HEMISPHERE TEMPERATURE ; STABLE-ISOTOPE VARIATIONS ; ATLANTIC OSCILLATION ; WINTER TEMPERATURES ; CLIMATE-CHANGE ; TRACE-ELEMENT ; RECONSTRUCTION ; MOROCCO ; VARIABILITY ; RECORDS |
| 资助项目 | NSFC[41888101] ; NSFC[41731174] ; NSFC[41561144003] ; Institute for Basic Science (IBS), Republic of Korea[IBS-R028-Y2] ; FAPESP[2017/50085-3] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000694653200011 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | NSFC ; Institute for Basic Science (IBS), Republic of Korea ; FAPESP |
| 源URL | [http://ir.ieecas.cn/handle/361006/16981]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Sha, Lijuan; Cheng, Hai |
| 作者单位 | 1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 2.Univ Basel, Dept Environm Sci, Basel, Switzerland 3.Inst Basic Sci, Ctr Climate Phys, Busan, South Korea 4.Pusan Natl Univ, Busan, South Korea 5.Chinese Acad Geol Sci, Key Lab Karst Dynam, MNR & Guangxi, Inst Karst Geol, Guilin, Peoples R China 6.Sao Paulo, Inst Geociencias Univ, Sao Paulo, Brazil 7.Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA 8.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sha, Lijuan,Brahim, Yassine Ait,Wassenburg, Jasper A.,et al. The "Hockey Stick" Imprint in Northwest African Speleothems[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48(17):11. |
| APA | Sha, Lijuan.,Brahim, Yassine Ait.,Wassenburg, Jasper A..,Yin, Jianjun.,Lu, Jiayu.,...&Cheng, Hai.(2021).The "Hockey Stick" Imprint in Northwest African Speleothems.GEOPHYSICAL RESEARCH LETTERS,48(17),11. |
| MLA | Sha, Lijuan,et al."The "Hockey Stick" Imprint in Northwest African Speleothems".GEOPHYSICAL RESEARCH LETTERS 48.17(2021):11. |
入库方式： OAI收割
来源：地球环境研究所
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