COSMO-LEPS verification SON 2004 precipitation new suite Chiara Marsigli ARPA-SIM – WG4
The COSMO-LEPS suite since June 2004 d-1 dd+5 d+1d+2 d+4d+3 middle EPS youngest EPS clustering period Cluster Analysis and RM identification 4 variables Z U V Q 3 levels hPa 2 time steps Cluster Analysis and RM identification European area Complete Linkage COSMO- LEPS Integratio n Domain 10 Representative Members driving the 10 Lokal Modell integrations (weighted according to the cluster populations) employing either Tiedtke or Kain- Fristch convection scheme (randomly choosen) COSMO- LEPS clusterin g area 10 km 32 layers 10 members 120 h
COSMO stations Verification grid
Verification of the distributions Station observation Grid point forecast The verification has been made in terms of: Average value Maximum value 50th percentile (Median) 90th percentile in a box
COSMO-LEPS 10-MEMBER EPS tp > 20mm/24h tp > 10mm/24h tp > 20mm/24h tp > 30mm/24h Average values boxes 1.5x1.5 deg
COSMO-LEPS 10-MEMBER EPS Average values boxes 1.5x1.5 deg
COSMO-LEPS 10-MEMBER EPS 50th percentile values boxes 1.5x1.5 deg tp > 10mm/24h tp > 20mm/24h tp > 10mm/24h tp > 20mm/24h tp > 30mm/24h
COSMO-LEPS 10-MEMBER EPS 50th percentile values boxes 1.5x1.5 deg
COSMO-LEPS 10-MEMBER EPS 90th percentile values boxes 1.5x1.5 deg tp > 10mm/24h tp > 20mm/24h tp > 10mm/24h tp > 20mm/24h tp > 30mm/24h
COSMO-LEPS 10-MEMBER EPS 90th percentile values boxes 1.5x1.5 deg
COSMO-LEPS 10-MEMBER EPS tp > 20mm/24h tp > 10mm/24h tp > 20mm/24h tp > 30mm/24h Maximum values boxes 1.5x1.5 deg
COSMO-LEPS 10-MEMBER EPS Maximum values boxes 1.5x1.5 deg
FINE
C’era un errore sui dati polacchi (dati mancanti in un formato non previsto), l’ho corretto ed ho ricalcolato gli scores del valore medio per COSMO- LEPS e per EPS-10RM. Seguono I risultati per vedere l’impatto.
tp > 10mm/24h tp > 20mm/24h Average values boxes 1.5x1.5 deg tp > 20mm/24h tp > 10mm/24h COSMO-LEPS 10-MEMBER EPS Con errore dati mancanti PoloniaSenza errore dati mancanti Polonia
Average values boxes 1.5x1.5 deg COSMO-LEPS 10-MEMBER EPS Con errore dati mancanti PoloniaSenza errore dati mancanti Polonia tp > 10mm/24h tp > 20mm/24h tp > 10mm/24h tp > 20mm/24h
Average values boxes 1.5x1.5 deg COSMO-LEPS 10-MEMBER EPS Con errore dati mancanti PoloniaSenza errore dati mancanti Polonia tp > 30mm/24h N.B.: senza errore sui dati gli scores del valore medio (gli unici ricalcolati) complessivamente migliorano un po’, per entrambi i sistemi. La differenza di score tra i due sistemi rimane pero’ generalemente la stessa (aumenta un po’ per la ROC area a 30 mm)
Average and maxima