The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate
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北大西洋海面温度误差对北大西洋欧洲地区气候模拟的影响
DOI：
10.1002/qj.1912
复制
发表时间：
2012
影响因子：
8.9
通讯作者：
Keeley S
中科院分区：
文献类型：
--
作者：
Keeley S
目前最先进的气候模型无法准确地捕捉到墨西哥湾流和北大西洋洋流的路径。这导致了北美海岸附近的温暖偏向，在那里，模拟的墨西哥湾流与更靠北的海岸分开，以及纽芬兰大浅滩以东的冷异常，在那里，北大西洋洋流在该地区仍然过于纬向。利用北大西洋海表温度偏差强迫的大气模式，我们考虑了它们对冬季北大西洋欧洲地区平均状态和变率的影响。结果表明，SST误差产生的平均海平面气压响应在大小和模式上与耦合气候模式中的大气环流误差相似。这项工作还表明，与再分析数据相比，耦合模式风暴路径和北大西洋涛动的误差也可以部分解释这些SST误差。我们的结果表明，墨西哥湾流分离位置的误差和北大西洋流在大浅滩周围的路径对大气环流有重要的影响。减少这些耦合模式误差可以显著提高北大西洋和欧洲地区大尺度大气环流的代表性。版权所有©2012皇家气象学会
Current state‐of‐the‐art climate models fail to capture accurately the path of the Gulf Stream and North Atlantic Current. This leads to a warm bias near the North American coast, where the modelled Gulf Stream separates from the coast further north, and a cold anomaly to the east of the Grand Banks of Newfoundland, where the North Atlantic Current remains too zonal in this region. Using an atmosphere‐only model forced with the sea surface temperature (SST) biases in the North Atlantic, we consider the impact they have on the mean state and the variability in the North Atlantic European region in winter. Our results show that the SST errors produce a mean sea‐level pressure response that is similar in magnitude and pattern to the atmospheric circulation errors in the coupled climate model. The work also suggests that errors in the coupled model storm tracks and North Atlantic Oscillation, compared to reanalysis data, can also be explained partly by these SST errors. Our results suggest that both the error in the Gulf Stream separation location and the path of the North Atlantic Current around the Grand Banks play important roles in affecting the atmospheric circulation. Reducing these coupled model errors could improve significantly the representation of the large‐scale atmospheric circulation of the North Atlantic and European region. Copyright © 2012 Royal Meteorological Society
使用大规模水文数据绝热校正涡允许模型：在墨西哥湾流和北大西洋洋流中的应用
DOI：
--
发表时间：
2004
期刊：
影响因子：
--
作者：
C. Eden;R. Greatbatch;C. Böning
通讯作者：
C. Böning
DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
J. Willebrand;B. Barnier;C. Böning;C. Dieterich;P. Killworth;C. Provost;Yanli Jia;J. Molines;A. New
通讯作者：
A. New
北大西洋洋流路径模拟中系统误差对气候的影响
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
S. Weese;F. Bryan
通讯作者：
F. Bryan