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DOI | 10.1007/s00382-016-3482-z |
Hindcast skill for the Atlantic meridional overturning circulation at 26.5A degrees N within two MPI-ESM decadal climate prediction systems | |
Mueller, Vasco1,2; Pohlmann, Holger3; Duesterhus, Andre1; Matei, Daniela3; Marotzke, Jochem3; Mueller, Wolfgang A.3; Zeller, Mathias4; Baehr, Johanna1 | |
2017-11-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Australia |
英文摘要 | We analyse the hindcast skill for the Atlantic meridional overturning circulation (AMOC) against 10 years of RAPID/MOCHA AMOC observations, which are now long enough to remove the mean seasonal cycle prior to the hindcast skill analysis. We analyse AMOC hindcast skill in two hindcast ensembles generated with two differently initialised decadal prediction systems that are both based on the earth system model MPI-ESM. We evaluate the hindcast skill for the AMOC and its components in both prediction systems against RAPID/MOCHA observations both with and without the mean seasonal cycle removed using anomaly correlation (COR) and root-mean-square error as skill measures. We find significant hindcast skill for most lead years up to 5 for monthly-mean AMOC variations only in the newer of the two prediction systems and only using COR, but with and without the mean seasonal cycle removed. In both systems and for all analysed lead years, the two geostrophic transport components (the upper-mid-ocean transport and Florida Strait combined, that is: AMOC minus Ekman) are the main source of hindcast skill. In the present model setup and with the currently available observational time series, we cannot relate AMOC hindcast skill to the upper-mid-ocean transport alone. Yet, we can show that the seasonal variability of the upper-mid-ocean transport in the free coupled model originates from eastern boundary density variability. Overall, our results indicate modest yet robust AMOC hindcast skill above the uninitialized simulation, independent of the treatment of the seasonal cycle, although we cannot directly link this hindcast skill to the initialisation of the density field with either initialisation method. |
英文关键词 | Decadal predictions Meridional overturning circulation Hindcast skill |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414153800003 |
WOS关键词 | NORTH-ATLANTIC ; VARIABILITY ; PREDICTABILITY ; TRANSPORT ; MODEL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36447 |
专题 | 气候变化 |
作者单位 | 1.Inst Oceanog, Bundestr 53, D-20146 Hamburg, Germany; 2.Univ Bremen, Ctr Marine Environm Sci, MARUM, Leobener Str, D-28359 Bremen, Germany; 3.Max Planck Inst Meteorol, Bundesstr 53, D-20146 Hamburg, Germany; 4.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic, Australia |
推荐引用方式 GB/T 7714 | Mueller, Vasco,Pohlmann, Holger,Duesterhus, Andre,et al. Hindcast skill for the Atlantic meridional overturning circulation at 26.5A degrees N within two MPI-ESM decadal climate prediction systems[J]. CLIMATE DYNAMICS,2017,49. |
APA | Mueller, Vasco.,Pohlmann, Holger.,Duesterhus, Andre.,Matei, Daniela.,Marotzke, Jochem.,...&Baehr, Johanna.(2017).Hindcast skill for the Atlantic meridional overturning circulation at 26.5A degrees N within two MPI-ESM decadal climate prediction systems.CLIMATE DYNAMICS,49. |
MLA | Mueller, Vasco,et al."Hindcast skill for the Atlantic meridional overturning circulation at 26.5A degrees N within two MPI-ESM decadal climate prediction systems".CLIMATE DYNAMICS 49(2017). |
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