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Model Description

The information of MME prediction system history SHOW HIDE

  • 2022.09 Started providing seasonal climate forecast information in higher spatial resolution.
  • 2022.04 Official seasonal climate outlook release date was changed from the 20th to the 15th every month.
  • 2022.04 Started providing ENSO alert information twice a month (around the 15th and the 30th)
  • 2021.09 4th MME Model Providers' Meeting virtually held
  • 2021.01 METFR joined APCC MME forecasts.
  • 2020.12 Posted information on MME prediction system history on website.
  • 2020.12 Posted information on climate information publications on website.
  • 2020.12 Started providing ENSO alert and summary map of global climate outlook.
  • 2020.02 Started providing probabilistic forecast from individual models.
  • 2020.01 Official hindcast period was changed from 1983-2010 to 1991-2010.
  • 2019.12 JAMSTEC joined APCC ENSO forecasts.
  • 2019.11 Official seasonal climate outlook release date was changed from the 25th to the 20th every month.
  • 2019.09 Posted information on participating climate models in APCC MME on website.
  • 2019.09 Posted APCC MME seasonal forecast methodology on website.
  • 2019.06 3rd MME Model Providers' Meeting held at Central Weather Bureau (CWB).
  • 2018.11 Launched new probabilistic ENSO forecasts.
  • 2016.05 2nd MME Model Providers' Meeting held at APCC.
  • 2014.11 Started providing verification information for real-time forecast.
  • 2014.08 1st MME Model Providers' Meeting held at APCC.
  • 2014.07 Released climate outlook for Pacific Islands.
  • 2013.09 Released global 6-month MME prediction.
  • 2013.09 Launched new ENSO forecasts.
  • 2008.06 Started providing hindcast verification information.
  • 2007.09 Released monthly MME prediction for the next 3 months.
  • 2006.09 Released seasonal 3-month MME prediction
  • 2006.09 Launched new MME probabilistic forecast.

The information of 15 climate models participating in APCC MME forecast is listed below. The information can be changed if the corresponding operational model is modified.

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 ※ Please refer to "Model History" below for the participating model's changes and improvements since 2015.​


 1. Forecast System:


Korea, APCC

System name

SCoPS (Seamless Coupled Prediction System)

First operational forecast run from APCC

Nov 2017 (for 2017DJFMAM)

 2. Model Description:


 Atmospheric model and resolution(top)


 T159L31 (10hPa)

 Roeckner et al. 2003

 Ocean model and resolution


 0.3-0.5 x 1.0 deg, L40

 Smith and Gent 2002

 Land surface model and resolution



 Roeckner et al. 2003

 Sea-ice model and resolution



 Hunke and Lipscomb 2010

 3. Initial / Boundary Condition:



 Atmospheric initial conditions

 3D nudging CFSR

 3D nudging CFSR

 Land surface initial conditions



 Soil moisture initial conditions



 Snow initial conditions



 Ocean initial conditions



 Sea-Ice initial conditions



 SST boundary conditions (if tier-2)



 4. Data Specification from APCC:



 Initial conditions for forecast and hindcast

 1st and 5th of the month

 1st and 5th of the month​

 Ensemble size for forecast and hindcast

 10 members

 10 members

 Hindcast period(fixed or on-the-fly?)


 Forecast frequency and range(lead time)

 6 months(1-6 month lead time*)

 Spatial resolution

 1° x 1°

 List of parameter for APCC

 prec, slp, sst, t2m, t850, u200, u850, v200, v850, z500

 5. More information

 URL or Main reference

 Ham et al. (2019) Correction to: A newly developed APCC SCoPS and its prediction of East Asia seasonal climate variability, Clim Dyn, 53, 3703-3704.​

 Focal point(name/e-mail)

 Ms. A-Young Lim (​


 * The length of time between issuance of a forecast and the occurrence of the phenomena that were predicted

   e.g. 2019 JJASON (1-6 month lead time) means 6 month forecast issued on May 2019​.​ 


 ​ Model History


​ Nov 2017

  : The CCSM3 was terminated and the new model, SCoPS (Seamless of Coupled Prediction System), was launched. 

    The SCoPS offered its first operational forecast for 2017DJFMAM.


​ Sep 2014 

  : The number of ensembles in the CCSM3 was changed from 5 to 10. 



APCC: APEC Climate Center
BCC: Beijing Climate Center
BOM: Bureau of Meteorology
CMCC: Centro Euro-Mediterraneo sui Cambiamenti Climatici
CWA: Central Weather Administration
ECCC: Environment Climate Change Canada
HMC: Hydrometeorological Centre of Russia
JMA: Japan Meteorological Agency
KMA: Korea Meteorological Administration
METFR: Météo-France
MGO: Voeikov Main Geophysical Observatory
NASA: National Aeronautics and Space Administration
NCEP: National Centers for Environmental Prediction
PNU-RDA: Pusan National University-Rural Development Administration​
UKMO: United Kingdom Met Office​​