LAPS DA Configuration Data Ingest Intermediate data files Error Covariance Trans LAPS GSI STMAS 3 D Trans Post proc 1 Post proc 2 Post proc 3 Model prep WRF-ARW MM 5 Ensemble Forecast WRF-NMM Probabilistic Post Processing
Precipitation Analysis (QPE) Inputs Radar Reflectivity Rain Gauges • Presently Collaborating with Finnish Met. Inst. on Radar / Gauge blending algorithms Model First Guess
Precipitation Analysis
Cloud Analysis Scheme Uses satellite Vis and IR Aircraft observations Surface observations Radar Interpolates cloud obs to grid with SCM Cloud feeds back into water vapor analysis
Derived products flow chart
Cloud/precip cross section
MARCH 14 00 -12 Z PRECIPITATION FORECAST – 9 KM MOVIE LOOP 1 -hr Increments Storm Total
MARCH 14 00 -12 Z PRECIPITATION FORECAST – 3 KM MOVIE LOOP 1 -hr Increments Storm Total
MARCH 14 00 -12 Z RADAR REFLECTIVITY FORECAST – 3 KM (Animation)
MARCH 14 06 -18 Z RADAR REFLECTIVITY FORECAST – 3 KM (Animation)
MARCH 14 06 -18 Z 1 -hr ACCUMULATED PRECIPITATION – 3 km MOVIE LOOP Analysis + rain gauges Forecast + rain gauges
MARCH 14 00 Z Integrated Water Vapor – 9 KM 24 HR MOVIE LOOP Analysis Forecast
MARCH 14 00 -12 Z UPSLOPE MOISTURE FLUX – 9 KM MOVIE LOOP Analysis Forecast
What FAB can do with Precip Assimilation Validation by comparing with 3 -D radar & microphysical analysis Development of forward models to bring GPM data into variational LAPS analysis and WRF model forecasts