Operational Implementation of Winter 2004 Meso Eta Change Package
What’s in this change package
Improving Precipitation Assimilation – Ying Lin
Bias Adjustment of Hourly Analyses for EDAS
Impact in 32km Parallels: Oct 6 – Dec 4 2003
Instantaneous solar fluxes 1-h later than observed in operational Eta (e.g., sunset)
Instantaneous solar fluxes corrected in parallel Eta (e.g., sunset)
Instantaneous solar fluxes 1-h later than observed in operational Eta (e.g., sunrise)
Instantaneous solar fluxes corrected in parallel Eta (e.g., sunrise)
Minor Bug Fix for Longwave … Fog
60-h Forecast Fields Valid 12Z 6 Nov 2003
Change in Input Precipitation Type to Noah LSM
30-h Forecast from 00Z 5 February 2004
Slide 14
36-h Forecast from 00Z 5 February 2004
Impact of Lackmann change on Eta snow cover
Assimilation of GOES-12 radiances
PBL Mixing (S2) Test coupling to Eta TKE Kh (m2/s)
Eta-12 Parallel (blue) vs Ops Eta (red) QPF Scores : 1/10/ – 2/18/04
48-h forecast RMS fits to CONUS raobs : 1/10 – 2/24/04
Changes to output product suite
Rime Factor (RF)
Rime Factor (left) & Percent Frozen Precipitation (right) from Eta microphysics
External Evaluation
TPC Evaluation
SPC Evaluation - part 1
SPC Evaluation – part 2
SPC Evaluation – part 3
AWC Evaluation
HPC Evaluation
Author: Geoff Dimego and Eric Rogers
E-mail: Geoff Dimego@noaa.gov
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