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Slides for NWS/SR meeting

Slides for NWS/SR meeting. John, Two of the graphics have specific background color schemes, the rest will inherit whatever scheme you choose for the master. Paul. Terminal Server. LDAD Hardware Diagram. LETS State/Local Gov’t. Dedicated modem. Emergency Preparedness. LDAD - LAN ( IP).

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Slides for NWS/SR meeting

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  1. Slides for NWS/SR meeting John, Two of the graphics have specific background color schemes, the rest will inherit whatever scheme you choose for the master. Paul

  2. Terminal Server LDAD Hardware Diagram LETS State/Local Gov’t Dedicated modem Emergency Preparedness LDAD - LAN ( IP) Internal LAN (IP) 16 ports Internal System Observing Platforms Dial modem Security Firewall 10 ports Interactive Menu LDAD Server 4 ports DTMF Conv(s) FAX Modem IFLOWS, ALERT, etc. Spotters, Coop Observer World Wide Web Existing router Public schools, police cars, etc. Public

  3. Relationship between NWS and FSL

  4. Better forecasts of surface conditions require model- based solutions

  5. Why run local models? • High resolution is a very good thing, but centrally-generated forecasts require high-volume communications. • Forecasters are scientifically stimulated. • Better forecasts. Duh.

  6. Why not run local models? • Expensive? • Labor-intensive? • Unreliable? • Unproven?

  7. Data sources for LAPS in AWIPS • RUC provides first guess • Surface: metars, buoys, satellite IR for T, local obs via LDAD (v4.2) • Upper winds: profiler (not ACARS, WSR88D) • Clouds: WSR88D reflectivity, satellite IR+vis, metars (not pireps, radiometers) • Water vapor: cloud fields + 11.7 (not ACARS, radiometers, GPS)

  8. What LAPS is, what it does • Hourly 3d analyses of state variables and derived fields • Grid positioned with WFO at center (localization) • 61x61 gridpoints at 10-km resolution • 21 levels in vertical every 50 mb • 3d cloud type, % coverage, mixing ratios of cloud liquid, cloud ice, rain, snow, and graupel; also reflectivity • Derived sfc fields: CAPE, LI, moisture convergence, etc.

  9. WSR External source cp2 ws1 SBN cp1 ws2 LDAD subnet firewall workstation subnet ds1 ds2 as3 as1 as2 any computer AWIPS local model implementation options

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