The Lead Centre for Sub-seasonal Predictions Multi-Model Ensemble (LC-SSPMME) coordinates multi-model ensembles of sub-seasonal forecasts by maintaining an archive containing a set of model fields, by creating graphical products from individual and multi-model ensembles under an agreed format and by creating verification statistics.

The roles of  (LC-SSPMME) as well as the role of Global Producing Centre for Sub-seasonal Predictions (GPC-SSP) are the latest additions to the WMO infrastructure for operational climate predictions. (see the WMO document here).

Lead Centres for Sub-seasonal Predictions Multi-model Ensemble (LC-SSPMME)

Global Producing Centre for Sub-seasonal Predictions (GPC-SSP)

GPC-SSP are required to fulfill a set of mandatory functions aiming to enhance consistency and usability of forecast information and to facilitate the exchange of data. For example, GPCs agree to:

• generate subseasonal global forecast, with at least weekly frequency
• make available a defined set of forecast products for a minimum set of variables including 2mt, SST and precipitation
• produce verification statistics according to the WMO standard.
• provide forecast and hindcast to the LC-SSPMME on a regular schedule
• make available up-to-date information about their subseasonal forecast system.

These functions are similar to the ones of the Global Producing Centres for Long Range Forecast (GPC-LRF) and for Annual to Decadal Climate predictions (GPC-ADCP).

LC-SSFMME is also a recent addition. WMO Lead Centres for seasonal (long-range) and Decadal have been in place for some time.  The role of the LC-SSFMME is very similar to the role of the existing WMO Lead Centres. The only difference is that it deals with sub-seasonal predictions. The LC-SSFMME coordinates multi-model ensembles of sub-seasonal forecasts by maintaining an archive containing a set of selected model fields, by creating graphical products from individual and multi-model ensembles under an agreed format and by creating verification statistics.

To add confusion to this ocean of long acronyms, WMO has recently decided to modify its language so that “seasonal prediction” replaces “Long-range forecast” and “sub-seasonal prediction” replaces “Sub-seasonal forecast”. As a result, we now refer GPC-LRF/GPC-SSF to GPC-SP and GPC-SSP and equally LC-LRFMME/LC_SSFMME will be LC-SPMME and LC-SSPMME.

list of LC-SSPPMME functions 

reference to the manual.

Role of GPC-SSP  reference ....

explain content of the subpages:

• The WMO manual on the Global Data-Processing and Forecasting System.
• Seasonal predictions from the WMO Lead Centre for Long-Range Forecast Multi-Model Ensemble (LRFMME).
• Annual to Decadal Climate Prediction from the WMO Lead Centre for Annual to Decadal Climate Prediction.
• The Expert Team on Operational Climate Prediction Systems (ET-OCPS).

Forecast digital data

Forecast charts

Verification