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LAPS / STMAS Niche

LAPS/STMAS is a highly portable system that enables easy collaboration among federal/state gov't, academia, and the private sector for weather analysis and forecasting. It offers a wide variety of data sources, high resolution, rapid updates, and low latency compared to other analysis systems. LAPS focuses on DA-Ensemble System, Data Ingest, Error Covariance, and Classic GSI Analysis Scheme, while STMAS provides improved analysis and forecast through a variational multiscale approach. Financial support is needed for the transition to operation.

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LAPS / STMAS Niche

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  1. LAPS / STMAS Niche • Highly Portable System, Easy to Use – Many Collaborators/users World Wide • Federal/State Gov’t, International, Academia, Private Sector • NWS/AWIPS, GTAS, FAA/COSPA, RSA, PADS, CWB Taiwan • Wide variety • of data sources: • High Resolution (500m – 20km), Rapid Update (10-60min), Local to Global: • 1km analysis, 15min frequency, 25-30 minute latency • Versus 60min frequency / ~60-90min latency for other hi-res analysis systems (e.g. RTMA) 1

  2. LAPS DA-Ensemble System Data Data Ingest Intermediate data files Error Covariance Trans Classic GSI Analysis Scheme STMAS3D Trans Model prep WRF-ARW MM5 WRF-NMM Probabilistic Post Processing Ensemble Forecast OAR/ESRL/GSD/Forecast Applications Branch 2

  3. FH FL LAPS HOT START INITIALIZATION Three-Dimensional Cloud Analysis METAR + FIRST GUESS

  4. Analysis 3-hr Forecast, Lin μPhys 16 June 2002 Well-Developed Squall Line at Initial time

  5. 850 mb Analyzed and Simulated Reflectivity Analysis 2hr HOT Fcst 2hr NO-HOT Fcst 16 June 2002

  6. Space and Time Multiscale Analysis System (STMAS) • It is a variational multiscale analysis system, a generalization of LAPS; • It provides a better balanced, temporal consistent and improved analysis and forecast; • Its research is supported by various projects but it needs support for transition to operation for improving LAPS analysis and forecast for AWIPS.

  7. A multiscale analysis Domain of interest Truth Standard 3DVAR analysis STMAS analysis

  8. Improved analysis and forecast Storm boundary detection (FAA CoSPA applications) Improved forecast For typhoon (Morakot)

  9. Financial Support for Transition • LAPS: Resources to support current AWIPS-II transition. Include more data sources and improve spatial / temporal resolution. • STMAS: Additional resource needed for transition, more computation, temporal consistency data source and calibration of the variational analysis for nowcasting and forecasts.

  10. Links of Interest • LAPS Home Page • http://laps.noaa.gov • STMAS Home Page • http://laps.noaa.gov/stmas/index.cgi • LAPS Workshop • http://esrl.noaa.gov/gsd/fab/workshops/ • NWS needs presented at LAPS Workshop • http://laps.noaa.gov/laps-workshop/Monday/The_Role_of_LAPS_in_the_NWS-2.pdf

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