22 May

• MJO and Teleconnections 22 May, 03:24
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21 May

• Stratosphere Sub-Project 21 May, 10:39
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• Ocean-Sea Ice Sub-project 21 May, 10:34
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• Land Sub-Project 21 May, 10:29
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17 May

• Machine Learning 17 May, 10:09
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11 May

• S2S Phase-II Ensembles Sub-project 11 May, 14:38
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06 May

• MJO and Teleconnections 3 changes by one user 06 May, 22:51 ▼

  
  • s2s_wiki edited a comment 06 May, 22:51 ▼

    The MJO-Teleconnection sub-project is launching a webinar series once a month on the last Thursday of the month. 

  • s2s_wiki added a comment 06 May, 22:51 ▼

    Dear Colleagues,

    Please join us for the first webinar of the monthly series of webinars hosted by the WWRP/WCRP/S2S/MJO-Teleconnections sub-project. ​

    Date: Thursday, April 30, 2020, 10:30 am  |  (UTC-04:00) Eastern Time (US & Canada)  |  1 hr
    Title: On the Subseasonal-to-seasonal Variability of Extra-tropics
    Speaker: Cristiana Stan, George Mason University, USA

    Abstract
    Recent advancements in understanding the subseasonal-to-seasonal (S2S) variability outside of the tropics will be discussed. I will introduce the multi-channel singular spectral analysis (MSSA) method used to isolate the S2S variability in the extra-tropics, present the oscillatory modes dominating the extra-tropics on these time scales and their relationship with tropical and stratospheric variability, and discuss the implications of midlatitude oscillatory modes for the predictability at Week 3&4.

    The S2S variability of the extra-tropics is dominated by three propagating oscillations with broad-band spectra centered at 120, 45, and 28 days are found. The first oscillatory mode is referred to as the midlatitude seasonal oscillation (MLSO), and the other two are referred to as midlatitude intraseasonal oscillation 1 and 2 (MLISO 1 and MLISO2). When combined, the oscillations explain up to 30% of the natural variability of the extra-tropics on the intra-seasonal to seasonal time scales. These oscillations share some features with the circumglobal wave guide and in some phases of their lifecycles they project onto the canonical teleconnection patterns.

    MLSO and MLISO-1 are related to the intraseasonal convective activity of the tropics and MLISO-1 shows some connection with the stratospheric variability associated with QBO.

    When used as predictors in a simple linear regression model with 2-meter temperature as predictand, the mid-latitude oscillations extend the potential predictability of dependent variable to about 20 days. 

    To participate send and email to subseasonal_to_seasonal_prediction_mjo_tel

  • s2s_wiki added a comment 06 May, 22:47 ▼

    The MJO-Teleconnection sub-project is launching a webinar series. 

• Webinars 06 May, 22:32
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23 Apr

• S2S Real-Time Pilot Initiative 23 Apr, 17:11
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16 Apr

• Research to Operations (R2O) and S2S forecast and verification products development 16 Apr, 09:17
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14 Apr

• Machine Learning 14 Apr, 17:19
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10 Apr

• Research to Operations (R2O) and S2S forecast and verification products development 10 Apr, 06:50
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09 Apr

• Machine Learning 09 Apr, 19:00
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• Research to Operations (R2O) and S2S forecast and verification products development 09 Apr, 10:50
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06 Apr

• Machine Learning 06 Apr, 19:15
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