Journal ArticleDOI
Madden-Julian Oscillation prediction and teleconnections in the S2S database
TLDR
In this paper, the Madden Julian Oscillation (MJO) has been diagnosed in the World Weather Research Program (WWRP)/WCRP Sub-seasonal-to-Seasonal prediction project (S2S) database using the Wheeler and Hendon index over the common hindcast period 1999-2010.Abstract:
The Madden Julian Oscillation (MJO) has been diagnosed in the World Weather Research Program (WWRP)/World Climate Research Program (WCRP) Sub-seasonal-to-Seasonal prediction project (S2S) database using the Wheeler and Hendon index (Wheeler and Hendon 2004) over the common hindcast period 1999–2010 The S2S models display skill to predict the MJO between 2 and 4 weeks The majority of S2S models tend to produce a weaker MJO than in ERA Interim, with a phase speed decreasing with lead time
All the S2S models produce realistic patterns of MJO teleconnections at 500 hPa, with an increased probability of positive North Atlantic Oscillation (NAO) following an active MJO over the Indian ocean and of negative NAO following an active MJO over the west Pacific However, the amplitude of the MJO teleconnection patterns are significantly weaker than in ERA Interim over the Euro Atlantic sector and are often too strong over the western North Pacific Models with lower horizontal resolution tend to produce weaker teleconnections In the lower stratosphere, several S2S models produce teleconnections which are too strong compared to ERA Interim These results suggest that although the S2S models display significant skill in predicting the MJO propagation beyond two weeks, all the S2S models do not fully exploit the predictability associated to the MJO in the Northern Extratropics, particularly over Europeread more
Citations
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Journal ArticleDOI
Improving long-lead seasonal forecasts of precipitation over Southern China based on statistical downscaling using BCC_CSM1.1m
TL;DR: Wang et al. as mentioned in this paper used the predictors of atmospheric circulation and sea surface temperature (SST) simulated by the Beijing Climate Center Climate System Model version 1.1 to improve the seasonal precipitation forecast over the southern China (SC).
Journal ArticleDOI
Mapping Large-Scale Climate Variability to Hydrological Extremes: An Application of the Linear Inverse Model to Subseasonal Prediction
Kai-Chih Tseng,Kai-Chih Tseng,Nathaniel C. Johnson,Eric D. Maloney,Elizabeth A. Barnes,Sarah B. Kapnick +5 more
TL;DR: In this paper, a linear inverse model (LIM) is applied to examine the tropical-extratropical interactions and its relationship to sub-seasonal prediction of hydrological extremes.
Posted ContentDOI
Flow dependence of wintertime subseasonal prediction skill over Europe
TL;DR: In this article, the authors evaluated the skill of the CNRM and ECMWF dynamical systems for predicting the weather in Europe and found that the level of skill for predicting temperature varies fairly consistently in both systems.
Journal ArticleDOI
The predictability limit of the amplitude and phase of the Madden-Julian oscillation
TL;DR: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China State key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University and Qingdao National Laboratory for Marine Science and Technology as mentioned in this paper.
Journal ArticleDOI
Madden-Julian Oscillation-Induced Suppression of Northeast Pacific Convection Increases U.S. Tornadogenesis
TL;DR: In this paper, the Madden-Julian oscillation (MJO) was investigated for U.S. tornadogenesis using atmospheric reanalysis and model experiments, and it was shown that the impact of MJO on US tornadic activity was minimal.
References
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Journal ArticleDOI
The ERA-Interim reanalysis: configuration and performance of the data assimilation system
Dick Dee,S. Uppala,Adrian Simmons,Paul Berrisford,Paul Poli,Shinya Kobayashi,Ulf Andrae,Magdalena Balmaseda,Gianpaolo Balsamo,Peter Bauer,Peter Bechtold,Anton Beljaars,L. van de Berg,Jean Bidlot,Niels Bormann,C. Delsol,Rossana Dragani,Manuel Fuentes,Alan J. Geer,Leopold Haimberger,Sean Healy,Hans Hersbach,Elías Hólm,Lars Isaksen,P. Kallberg,Martin Köhler,Marco Matricardi,A. P. McNally,B. M. Monge-Sanz,Jean-Jacques Morcrette,B.-K. Park,Carole Peubey,P. de Rosnay,Christina Tavolato,Jean-Noël Thépaut,Frederic Vitart +35 more
TL;DR: ERA-Interim as discussed by the authors is the latest global atmospheric reanalysis produced by the European Centre for Medium-Range Weather Forecasts (ECMWF), which will extend back to the early part of the twentieth century.
Journal ArticleDOI
The Twentieth Century Reanalysis Project
Gilbert P. Compo,Gilbert P. Compo,Jeffrey S. Whitaker,Prashant D. Sardeshmukh,Prashant D. Sardeshmukh,N. Matsui,N. Matsui,Rob Allan,Xiaojun Yin,Byron E. Gleason,Russell S. Vose,Glenn Rutledge,P. Bessemoulin,Stefan Brönnimann,Stefan Brönnimann,Manola Brunet,Manola Brunet,R. Crouthamel,Andrea Grant,Pavel Ya. Groisman,Pavel Ya. Groisman,Philip Jones,Michael C. Kruk,Andries Kruger,Gareth J. Marshall,Maurizio Maugeri,H. Mok,Øyvind Nordli,Tom Ross,Ricardo M. Trigo,Xiaolan L. Wang,Scott D. Woodruff,Steven J. Worley +32 more
TL;DR: The Twentieth Century Reanalysis (20CR) dataset as discussed by the authors provides the first estimates of global tropospheric variability, and of the dataset's time-varying quality, from 1871 to the present at 6-hourly temporal and 2° spatial resolutions.
Journal ArticleDOI
An All-Season Real-Time Multivariate MJO Index: Development of an Index for Monitoring and Prediction
TL;DR: A seasonally independent index for monitoring the Madden-Julian oscillation (MJO) is described in this paper, which is based on a pair of empirical orthogonal functions (EOFs) of the combined fields of near-equatorially averaged 850-hPa zonal wind, 200-hpa zonal winds, and satellite-observed outgoing longwave radiation (OLR) data.
Journal ArticleDOI
Intraseasonal interaction between the Madden–Julian Oscillation and the North Atlantic Oscillation
TL;DR: Evidence is presented that the main climate intra-seasonal oscillation in the tropics—the Madden–Julian Oscillation—controls part of the distribution and sequences of the four daily weather regimes defined over the North Atlantic–European region in winter.
Journal ArticleDOI
The Subseasonal to Seasonal (S2S) Prediction Project Database
Frederic Vitart,Constantin Ardilouze,A. Bonet,Anca Brookshaw,M. Chen,C. Codorean,Michel Déqué,Laura Ferranti,E. Fucile,Manuel Fuentes,Harry H. Hendon,J. Hodgson,H.-S. Kang,Arun Kumar,Hai Lin,Guoqiang Liu,Xiangwen Liu,Piero Malguzzi,I. Mallas,M. Manoussakis,D. Mastrangelo,Craig MacLachlan,Peter McLean,A. Minami,R. Mladek,Tetsuo Nakazawa,S. Najm,Y. Nie,Michel Rixen,Andrew W. Robertson,Paolo Ruti,C. Sun,Yuhei Takaya,Mikhail A. Tolstykh,F. Venuti,Duane E. Waliser,Steven J. Woolnough,Tongwen Wu,D.-J. Won,H. Xiao,R. B. Zaripov,L. Zhang +41 more
TL;DR: The Subseasonal to Seasonal (S2S) Prediction research project has been established by the World Weather Research Programme/World Climate Research Programme as discussed by the authors, which is the main deliverable of this project is the establishment of an extensive database containing sub-seasonal (up to 60 days) forecasts, 3 weeks behind real time, and reforecasts from 11 operational centers, modeled in part on the The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) database for medium-range forecasts.
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