A Multimodel Study of Sea Surface Temperature and Subsurface Density Fingerprints of the Atlantic Meridional Overturning Circulation
A Multimodel Study of Sea Surface Temperature and Subsurface Density Fingerprints of the Atlantic Meridional Overturning Circulation
复制标题
大西洋经向翻转环流海面温度和次表层密度指纹的多模型研究
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
L. Jackson
中科院分区：
文献类型：
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作者：
C. Roberts;F. Garry;L. Jackson
大西洋纬向翻转环流（AMOC）是北大西洋气候系统的重要组成部分。在这里，从10个耦合的气候模式的模拟被用来计算模式的海表温度（SST）和次表层密度变化与十年的AMOC变化。使用观测约束的模型进行评估，结果表明，所有10个模型遭受北大西洋深水运输太浅，虽然偏差是最严重的社区气候系统模型，第4版（CCSM 4）。在最好的模式，与观测比较，积极AMOC异常与拉布拉多海分层减少和增加的亚极地环流中的miraculan（800-1800米）密度。当AMOC异常分别滞后拉布拉多海分层和次表层密度异常2-6年和0-3年时，相关性最大。在所有10个模型中，北大西洋变暖遵循正AMOC异常，但模式和幅度...
AbstractThe Atlantic meridional overturning circulation (AMOC) is an important component of the North Atlantic climate system. Here, simulations from 10 coupled climate models are used to calculate patterns of sea surface temperature (SST) and subsurface density change associated with decadal AMOC variability. The models are evaluated using observational constraints and it is shown that all 10 models suffer from North Atlantic Deep Water transports that are too shallow, although the biases are least severe in the Community Climate System Model, version 4 (CCSM4). In the models that best compare with observations, positive AMOC anomalies are associated with reduced Labrador Sea stratification and increased midocean (800–1800 m) densities in the subpolar gyre. Maximum correlations occur when AMOC anomalies lag Labrador Sea stratification and subsurface density anomalies by 2–6 yr and 0–3 yr, respectively. In all 10 models, North Atlantic warming follows positive AMOC anomalies, but the patterns and magnitud...
影响因子：
5.2
作者：
Bingham, Rory J.;Hughes, Chris W.
通讯作者：
Hughes, Chris W.