Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088061 |
Atlantic-Pacific Gradients Drive Last Millennium Hydroclimate Variability in Mesoamerica | |
Bhattacharya, Tripti1; Coats, Sloan2 | |
2020-06-09 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The paleoclimatic record from Mexico and Central America, or Mesoamerica, documents dramatic swings in hydroclimate over the past few millennia. However, the dynamics underlying these past changes remain obscure. We use proxy indicators of hydroclimate to show that last millennium hydroclimate variability was dominated by opposite-signed moisture anomalies in northern and southern Mesoamerica. This pattern results from changes in moisture convergence driven by Atlantic-Pacific interbasin temperature gradients. While this pattern is reproduced by several models and multiple experiments with a single model, models appear to disagree about the underlying dynamics of this interbasin gradient. Moreover, disagreement about the interbasin gradient, and associated hydroclimate pattern, dominates spread in 21st century regional hydroclimate projections. These results emphasize the role of interbasin asymmetries in governing past and future regional climate change. They also demonstrate that paleoclimate studies can elucidate mechanisms directly relevant to projecting future hydroclimate in climate change hot spots like Mesoamerica. |
英文关键词 | Central America hydroclimate paleoclimate tropical variability last millennium proxy-model comparison |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551465400024 |
WOS关键词 | HOLOCENE CLIMATE-CHANGE ; YUCATAN PENINSULA ; TROPICAL ATLANTIC ; MEXICAN DROUGHT ; TREE-RING ; MAYA ; COLLAPSE ; RAINFALL ; RECORD ; RECONSTRUCTIONS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
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/274404 |
专题 | 气候变化 |
作者单位 | 1.Syracuse Univ, Dept Earth Sci, Syracuse, NY 13244 USA; 2.Univ Hawaii Manoa, Dept Earth Sci, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Bhattacharya, Tripti,Coats, Sloan. Atlantic-Pacific Gradients Drive Last Millennium Hydroclimate Variability in Mesoamerica[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13). |
APA | Bhattacharya, Tripti,&Coats, Sloan.(2020).Atlantic-Pacific Gradients Drive Last Millennium Hydroclimate Variability in Mesoamerica.GEOPHYSICAL RESEARCH LETTERS,47(13). |
MLA | Bhattacharya, Tripti,et al."Atlantic-Pacific Gradients Drive Last Millennium Hydroclimate Variability in Mesoamerica".GEOPHYSICAL RESEARCH LETTERS 47.13(2020). |
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