WHAT IS THE LATEST ON THE EARLY MESO UPGRADE?
1 – Eta resolution increased from 48-km to 32-km, from 38 vertical layers to 45 vertical layers, and from 2 to 4 soil layers 2 – Optimal Interpolation (OI) objective analysis method replaced with the 3-D Variational analysis method 3 – five new observing data types were added to the Eta 4-D Data Assimilation System (EDAS): sfc station winds obs over land, VAD wind profiles from NEXRAD, ACARS aircraft temperature data, SSM/I oceanic sfc winds, tropical cyclone bogus data 4 – In the EDAS, fully continuous Eta-based cycling of cloud water, turbulent kinetic energy (TKE), and soil moisture/temperature (i.e. Eta first-guess forecast used, no global model first-guess used for these fields) 03 Jun 98 Eta/EDAS Implementation 1 – a new daily 23-km N.H. NESDIS snowcover/sea-ice analysis is implemented in the EDAS 2 – fully continuous Eta-based cycling of ALL model prognostic fields is implemented in the EDAS (i.e. Eta first-guess forecast used for ALL prognostic fields, no global model first-gue
