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.

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Presentation transcript:

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

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

Relationship between NWS and FSL

Better forecasts of surface conditions require model- based solutions

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.

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

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  (not ACARS, radiometers, GPS)

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.

cp1 cp2ws1 ws2 ds1 ds2 as3 firewall LDAD subnet workstation subnet AWIPS local model implementation options any computer as1 as2 SBN Externalsource WSR