Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3782-y |
Appraising timing response of paleoenvironmental proxies to the Bond cycle in the western Mediterranean over the last 20 kyr | |
Rodrigo-Gamiz, Marta1,2; Martinez-Ruiz, Francisca1; Rodriguez-Tovar, Francisco J.3; Pardo-Iguzquiza, Eulogio4; Ortega-Huertas, Miguel2 | |
2018-04-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:2925-2934 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | The timing of climate responses to the Bond cycle is investigated in the western Mediterranean. Periodicities had been previously reported in a marine sediment record from this region spanning the last 20 kyr, and registered by diverse paleoenvironmental proxies, in particular those associated with terrigenous input, redox conditions, productivity, sea surface temperature (SST) and salinity. Further cross-spectral analyses on these time series reveal leads-lags in the 1400 year climate cycle. Considering as reference a terrigenous input proxy (the K/Al ratio), all the paleoenvironmental proxies displayed time shifts varying from ca. 700 year to ca. 350 year. SST and salinity variations show a first leaded response with the inflow of cold and less salty Atlantic waters. Followed by a time lead of 525 year, progresively arid conditions with an increase of eolian dust transport to the area, given by the Zr/Al signal, are observed. The intensification of dust transport could have triggered a latest biological response, lead by 350 year, with an increase of productivity, as suggested by the Ba/Al ratio. Lastly changes in the Mediterranean thermohaline circulation, indicated by a selected redox proxy (the U/Th ratio), are observed. These results support that the oceanic response triggered the atmospheric response to the Bond cycle in the western Mediterranean. Changes in the North Atlantic Oscillation mode and in the Inter-Tropical Convergence Zone migrations with variations in the monsoon activity or Saharan winds system, are considered as main forcing mechanisms, with a complex relationship of the involved phenomena. |
英文关键词 | Cross-spectral Bond cycle Western Mediterranean Marine record Paleoenvironmental proxies |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428600200035 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; SEA-SURFACE TEMPERATURE ; PAST 20,000 YR ; STATISTICAL SIGNIFICANCE ; THERMOHALINE CIRCULATION ; CLIMATE VARIABILITY ; SPECTRAL-ANALYSIS ; PERMUTATION TEST ; EASTERLY WAVES ; LATE HOLOCENE |
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/35615 |
专题 | 气候变化 |
作者单位 | 1.Univ Granada CSIC UGR, CSIC, IACT, Avda Palmeras 4, Granada 18100, Spain; 2.Univ Granada, Dept Mineral & Petrol, Campus Fuentenueva S-N, Granada 18002, Spain; 3.Univ Granada, Dept Estratig & Paleontol, Campus Fuentenueva S-N, Granada 18002, Spain; 4.IGME, Madrid, Spain |
推荐引用方式 GB/T 7714 | Rodrigo-Gamiz, Marta,Martinez-Ruiz, Francisca,Rodriguez-Tovar, Francisco J.,et al. Appraising timing response of paleoenvironmental proxies to the Bond cycle in the western Mediterranean over the last 20 kyr[J]. CLIMATE DYNAMICS,2018,50:2925-2934. |
APA | Rodrigo-Gamiz, Marta,Martinez-Ruiz, Francisca,Rodriguez-Tovar, Francisco J.,Pardo-Iguzquiza, Eulogio,&Ortega-Huertas, Miguel.(2018).Appraising timing response of paleoenvironmental proxies to the Bond cycle in the western Mediterranean over the last 20 kyr.CLIMATE DYNAMICS,50,2925-2934. |
MLA | Rodrigo-Gamiz, Marta,et al."Appraising timing response of paleoenvironmental proxies to the Bond cycle in the western Mediterranean over the last 20 kyr".CLIMATE DYNAMICS 50(2018):2925-2934. |
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