A new perspective on global mean sea level (GMSL) acceleration
A new perspective on global mean sea level (GMSL) acceleration
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DOI：
10.1002/2016gl069653
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发表时间：
2016-06
影响因子：
5.2
通讯作者：
P. Watson
中科院分区：
文献类型：
--
作者：
P. Watson
大量的当代气候变化科学在很大程度上是基于这样一个前提，即在关键的气候变化指标温室气体排放、温度和平均海平面中，明显存在着人为强迫的测量加速。近年来，关于全球平均海平面是否有可测量的加速的问题引起了激烈的、广泛的专业、社会和政治辩论。试图测量全球平均海平面（GMSL）的加速度，往往使用相对粗糙的分析技术，提供这些关键问题的时间指令很少。这项工作提出了改进的技术，以测量真实的时间速度和加速度的基础上，从1807年到2014年的时间框架的五个GMSL重建大幅提高时间分辨率。虽然这一分析突出了各自重建之间的关键差异，但现在有更有力、更令人信服的证据表明，GMSL的趋势最近有所加速。
The vast body of contemporary climate change science is largely underpinned by the premise of a measured acceleration from anthropogenic forcings evident in key climate change proxies—greenhouse gas emissions, temperature, and mean sea level. By virtue, over recent years, the issue of whether or not there is a measurable acceleration in global mean sea level has resulted in fierce, widespread professional, social, and political debate. Attempts to measure acceleration in global mean sea level (GMSL) have often used comparatively crude analysis techniques providing little temporal instruction on these key questions. This work proposes improved techniques to measure real‐time velocity and acceleration based on five GMSL reconstructions spanning the time frame from 1807 to 2014 with substantially improved temporal resolution. While this analysis highlights key differences between the respective reconstructions, there is now more robust, convincing evidence of recent acceleration in the trend of GMSL.