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Evaluation of NWC SAF Precipitation Products for the Adriatic Region
Izidor Pelajić, P. Mikuš Jurković, I. Smiljanić, N. Strelec Mahović
Meteorological and Hydrological Service Croatia
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain 1
MOTIVATION:
• Croatian Adriatic coast is one of the rainiest areas in Europe
• Lack of radar coverage along the coast
• No precipitation data over the sea
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain2
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain3
Composite radar coverage
NWC SAF at DHMZ
• NWC SAF precipitation products used since 2012• Products calculated on two domains – Europe and Croatia
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain4
Western EuropeCentral Europe-Mediterranean
Validation efforts• Verification still being performed– currently on case-to-case basis
• Comparison with:– radar data where available– Raingauges data – Aladin and ECMWF model forecasts
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain5
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain6
11 September 2014 – 09 UTC
Torrential rain in Dalmatia (Vodice)Up to 280 mm/6 h
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain7
ŠIBENIK
11 September 2014 – 09 UTCNWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain
8
PGE 14 PGE 05
KNIN
503020151075321
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain9
PGE 14 PGE 05
PGE 04
503020151075321
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain10
PGE 05
PGE 04
PGE 14
Comparison with model data
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain11
• PGE 14 Hourly accum.
• ECMWF 9 – 12 UTC accum.
9-10 10-11 11-12
Summary• From case to case observations it seems that precipitation
products from SAFNWC tend to underestimate low precipitation rates
• For intensive precipitation cases there is a signifficant difference between PGE14 (physical retrieval) and PGE05 products
• PGE05 seems to underestimate hourly accumulation rates • PGE14 seem to have more structures (features) in
precipitation field
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain12
Unrelated notes on NWC SAF
• Winds• Extrapolation • Reprocessing old cases/dates• Documentation
NWC SAF 2015 User’s Workshop | 24-26 February 2015 | Madrid, Spain13