Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1702827 |
Collaborative Research: P2C2--Expansion/Contraction of the Intertropical Convergence Zone; An Emerging Mechanism of Tropical Precipitation Changes for Reinterpreting Paleoclimate | |
Aaron Donohoe | |
主持机构 | University of Washington |
项目开始年 | 2017 |
2017-08-15 | |
项目结束日期 | 2020-07-31 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 269534(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | The spatial distribution of tropical precipitation is determined by the average location and seasonal march of the intertropical convergence zone (ITCZ). The latitudinal shift of the ITCZ is typically employed as the go-to theory for interpreting past hydroclimate changes and defining mechanisms of the response to climate forcing (past and future). This project, however, is based on the premise that the simultaneous contraction and intensification (CI) of the ITCZ is a far more powerful mode of tropical precipitation changes (by a factor of 4) in response to both paleoclimate and anthropogenic forcing than the more commonly employed ITCZ shift. The overarching goal of the project is to couple reconstructions of past changes in the CI mode from paleoclimate proxy records with a dynamical framework of the CI mode to constrain future tropical precipitation changes and variability. This specific aims are to: i) explore the dynamics of the CI mode to identify the mechanisms that lead to the direction of changes seen in simulations of past and future climate as well as evaluate the uncertainties in these processes and ii) use the emerging knowledge of the CI mode to reinterpret the paleoclimate record to constrain the past behavior of ITCZ shifts versus CI. The project would help develop a deeper understanding of the ITCZ and potentially improve the ability of climate models to forecast broad-scale future changes (and variability) in the magnitude and spatial structure topical precipitation. The project would also support two early career scientists and leverage existing public outreach programs in science at the University of Washington and the University of California-Berkeley. |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/71566 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Aaron Donohoe.Collaborative Research: P2C2--Expansion/Contraction of the Intertropical Convergence Zone; An Emerging Mechanism of Tropical Precipitation Changes for Reinterpreting Paleoclimate.2017. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Aaron Donohoe]的文章 |
百度学术 |
百度学术中相似的文章 |
[Aaron Donohoe]的文章 |
必应学术 |
必应学术中相似的文章 |
[Aaron Donohoe]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论