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NWP Activities at INM

This document summarizes key activities discussed at the 27th EWGLAM and 12th SRNWP meetings held in Ljubljana in October 2005. It covers operational activities, advancements in computer resources including the Cray X1e, and the application of the Hirlam operational model. The report details processes such as data assimilation, verification methodologies, and physical parameterizations. It highlights specific research projects, including improvements in precipitation predictions and coupling dynamics with physics, aimed at refining numerical weather predictions.

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NWP Activities at INM

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  1. NWP Activities at INM José A. García-Moya SMNT – INM 27th EWGLAM & 12th SRNWP Meetings Ljubljana, October 2005

  2. Introduction • Operational activities. • Computer resources • Hirlam as operational model. • Wave model. • Verification. • Research in NWP: • Hirlam project. • Data Assimilation • Coupling dynamic-physic in Hirlam • Physical parameterizations • SREPS 27th EWGLAM & 12th SRNWP Meetings

  3. Computer resources • Cray X1e • 15 nodes, 8 MSP’s each node • 4 SSP’s each MSP • 320 Gb memory • 2.3 TF peak performance • Official acceptance: June 2005 27th EWGLAM & 12th SRNWP Meetings

  4. Cray X1e MSP 27th EWGLAM & 12th SRNWP Meetings

  5. Hirlam operational model • ONR • 0.16 deg latxlon, 40 levels • 72 hours forecast, 4 times a day • 3DVAR • BC’s from ECMWF • HNR and CNN • 0.05 deg latxlon, 40 levels • 36 hours forecast, 4 times a day • 3DVAR • BC’s from ONR 27th EWGLAM & 12th SRNWP Meetings

  6. ONR integration area 27th EWGLAM & 12th SRNWP Meetings

  7. HNR – CNN integration areas 27th EWGLAM & 12th SRNWP Meetings

  8. Verification 2005 • Standard verification against observations. • Verification against Spanish High Resolution precipitation network. • Monthly comparison ONR-HNR models for Spain. 27th EWGLAM & 12th SRNWP Meetings

  9. Geopotential June-August 2005 27th EWGLAM & 12th SRNWP Meetings

  10. MSLP June-August 27th EWGLAM & 12th SRNWP Meetings

  11. Precip. by thresholds POD-FAR 27th EWGLAM & 12th SRNWP Meetings

  12. Wave operational model • WAM 4 for Atlantic and Mediterranean • High resolution shallow water model 27th EWGLAM & 12th SRNWP Meetings

  13. Wave operational model 27th EWGLAM & 12th SRNWP Meetings

  14. High Resolution Wave operational model 27th EWGLAM & 12th SRNWP Meetings

  15. Hirlam Project – Data Assimilation • 3DVAR in operational models. • Assimilation of GPS data (TOUGH project). • Test of Hirlam 4DVAR in the Cray X1e. • Soil moisture analysis comparison between Hirlam reference system and 1DVAR version (ELDAS project). • Mesoscale Rapid Update Cycle of analysis of surface parameters. • Assimilation of VAD winds from INM radar network. 27th EWGLAM & 12th SRNWP Meetings

  16. PP thresholds (0.1, 0.3, 1., 3., 10., 30., 100. mm in 24 hours) Spring period:15 April-15 May 2004 Impact of introducing 31 new GPS sites Verification with INM Climate stations (upscaled to 22km). • ETS and TSS show that increasing the number of GPS sites improves model precipitation. 27th EWGLAM & 12th SRNWP Meetings

  17. Hirlam Project – Dynamics • Different strategies of coupling dynamics-physic in Hirlam. • Stability and same meteorological quality with larger time step. 27th EWGLAM & 12th SRNWP Meetings

  18. Hirlam Project – Physics • Surface processes: • Snow OI analysis. • ECOCLIMAP database in Hirlam. • New formulation of snow processes using two additional tiles: • snow over open land • Snow over forest 27th EWGLAM & 12th SRNWP Meetings

  19. Hirlam Project – Physics • Convection: • New moist scheme based on Kain-Fritsch convection and Rasch-Kristjannsson large scale implemented into the HIRLAM reference system. • Forecast 10-20 % more expensive and even more on vector computers (vector optimization in progress). • Improvement of precipitation over Iberia. 27th EWGLAM & 12th SRNWP Meetings

  20. True Skill Statistic + Equitable Threat Score over Iberia (2-3 months) 27th EWGLAM & 12th SRNWP Meetings

  21. SREPS - Multi-model Multi-boundaries • Models: • Hirlam. • HRM • MM5 • UM • Boundaries • ECMWF • UM • AVN • GME 27th EWGLAM & 12th SRNWP Meetings

  22. Ensemble • 72 hours forecast four times a day (00, 06, 12 y 18 UTC). • Characteristics: • 4 models. • 4 boundary conditions. • 4 last ensembles (HH, HH-6, HH-12, HH-18). • 16 member ensemble every 6 hours • Time-lagged Super-Ensemble of 64 members every 6 hours. 27th EWGLAM & 12th SRNWP Meetings

  23. SREPS 27th EWGLAM & 12th SRNWP Meetings

  24. Road Map 27th EWGLAM & 12th SRNWP Meetings

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