Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL083721 |
Local and Regional Indian Summer Monsoon Precipitation Dynamics During Termination II and the Last Interglacial | |
Magiera, Matthias1; Lechleitner, Franziska A.2; Erhardt, Andrea M.3; Hartland, Adam4; Kwiecien, Ola5; Cheng, Hai6,7; Bradbury, Harold J.8; Turchyn, Alexandra V.8; Riechelmann, Sylvia5; Edwards, Lawrence7; Breitenbach, Sebastian F. M.5 | |
2019-11-14 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:12454-12463 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA; New Zealand; Germany; Peoples R China |
英文摘要 | To date Indian summer monsoon (ISM) dynamics have been assessed by changes in stalagmite delta O-18. However, stalagmite delta O-18 is influenced by multiple environmental factors (e.g., atmospheric moisture transport, rainfall amount at the study site, and ISM seasonality), precluding simple and clear reconstructions of rainfall amount or variability. This study aims to disentangle these environmental factors by combining delta O-18, delta Ca-44, and elemental data from a stalagmite covering Termination II and the last interglacial from Mawmluh Cave, NE India, to produce a semiquantitative reconstruction of past ISM rainfall. We interpret delta O-18 as a mixed signal of rainfall source dynamics and rainfall amount and coupled delta Ca-44 and X/Ca ratios as indicators of local infiltration rate and prior calcite precipitation in the karst zone. The wettest conditions in our studied interval (135 and 100 kyrs BP; BP = before present, with the present being 1950 CE) occurred during Marine Isotope Stage 5e. Our multiproxy data set suggests a likely change in seasonal distribution of Marine Isotope Stage 5e rainfall compared to the Holocene; the wet season was longer with higher-than-modern dry season rainfall. Using the last interglacial as an analogue for future anthropogenic warming, our data suggest a more erratic ISM behavior in a warmer world. |
英文关键词 | speleothem Marine Isotope Stage 5e Termination II seasonality Indian summer monsoon dry season rainfall |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496468100001 |
WOS关键词 | CALCIUM ISOTOPIC FRACTIONATION ; ASIAN MONSOON ; MOISTURE TRANSPORT ; HIGH-RESOLUTION ; CAVE ; SPELEOTHEM ; RECORDS ; PROXY ; HOLOCENE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/225022 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Huddersfield, Dept Biol & Geog Sci, Huddersfield, W Yorkshire, England; 2.Univ Oxford, Dept Earth Sci, Oxford, England; 3.Univ Kentucky, Dept Earth & Environm Sci, Lexington, KY USA; 4.Univ Waikato, Environm Res Inst, Hamilton, New Zealand; 5.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Bochum, Germany; 6.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China; 7.Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA; 8.Univ Cambridge, Dept Earth Sci, Cambridge, England |
推荐引用方式 GB/T 7714 | Magiera, Matthias,Lechleitner, Franziska A.,Erhardt, Andrea M.,et al. Local and Regional Indian Summer Monsoon Precipitation Dynamics During Termination II and the Last Interglacial[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):12454-12463. |
APA | Magiera, Matthias.,Lechleitner, Franziska A..,Erhardt, Andrea M..,Hartland, Adam.,Kwiecien, Ola.,...&Breitenbach, Sebastian F. M..(2019).Local and Regional Indian Summer Monsoon Precipitation Dynamics During Termination II and the Last Interglacial.GEOPHYSICAL RESEARCH LETTERS,46(21),12454-12463. |
MLA | Magiera, Matthias,et al."Local and Regional Indian Summer Monsoon Precipitation Dynamics During Termination II and the Last Interglacial".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12454-12463. |
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