Reaching out across the Web .. ...分享 http://blog.sciencenet.cn/u/zuojun Zuojun Yu, physical oceanographer, freelance English editor

博文

科技英语写作基础(系列):阅读摘要,分析时态

已有 578 次阅读 2020-6-15 03:48 |个人分类:Scientific Writing|系统分类:论文交流| 科技英语写作


The goal is to learn how to write better.

分析的目的是为了提高科技英语写作水平(不是针对作者)

Green highlight is used to show good writing.

好好学习:用绿色标出。

Yellow means "questionable."

Large shift of the Pacific Walker Circulation across the Cenozoic

https://academic.oup.com/nsr/advance-article/doi/10.1093/nsr/nwaa101/5836737

Abstract

Fluctuations in the Pacific Walker circulation (PWC), a zonally-oriented overturning cell across the tropical Pacific, can cause widespread climatic and biogeochemical perturbations

 

It remains unknown how the PWC developed during the Cenozoic era, with its substantial changes in greenhouse gases and continental positions. 

 

Through a suite of coupled model simulations on tectonic timescales, we demonstrate that the PWC was 38° broader and 5% more intense during the Early Eocene relative to present. 

 

As the climate cooled from the Early Eocene to the Late Miocene, the width of the PWC shrank, accompanied by an increase in intensity that was tied to the enhanced Pacific zonal temperature gradient. 

 

However, the locations of the western and eastern branches behave differently from the Early Eocene to the Late Miocene, with the western edge remained steady with time due to the relatively stable geography of the western tropical Pacific; the eastern edge migrates westward with time as the South American continent moves northwest. 

 

A transition occurs in the PWC between the Late Miocene and Late Pliocene, manifested by an eastward shift (both the western and eastern edges migrate eastward by >12°) and weakening (by 22%), which we show here is linked with the closure of the tropical seaways. 

 

Moreover, our results suggest that rising CO2 favors a weaker PWC under the same land-sea configurations, a robust feature across the large spread of Cenozoic climates considered here, supporting a weakening of the PWC in a warmer future.


Follow me, if you want to improve your writing skill:

如果你想提高科技英语写作能力,请跟我来...

http://blog.sciencenet.cn/blog-306792-1146690.html




http://blog.sciencenet.cn/blog-306792-1237879.html

上一篇:科技英语写作基础(系列):阅读AI helps missing climate data
下一篇:科技英语写作基础(系列):阅读摘要,Predictability Barrier

3 强涛 郑秀娟 臧今楠

该博文允许注册用户评论 请点击登录 评论 (2 个评论)

数据加载中...

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2020-8-14 13:39

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部