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 Lead Centres for Sub-seasonal Predictions Multi-model Ensemble (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.
GPC-SSP GPCs 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 provide:
- a defined standard set of forecast products (var, prob, averages, lead time).
- forecast with regular frequency.
- skill assessment based on the WMO standard verification measures.
- data to the WMO Lead Centre on a regular schedule.
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).
GPC-SSF are requested to:
- generate SSF global forecast, with at least weekly frequency
- make available a defined set of forecast products (prob terc. For weekly averages of 2mt,SST and precip)
- produce verification statistics according to the WMO standard.
- provide forecast and hindcast to LCs-SSFMME
- make available up-to-date information about their SSF system.
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).