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Convection and NAS-level NextGen Requirements at Full Operating Capability (FOC)

Convection and NAS-level NextGen Requirements at Full Operating Capability (FOC). DRAFT. Full Operating Capability NAS-Level Requirements.

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Convection and NAS-level NextGen Requirements at Full Operating Capability (FOC)

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  1. Convection and NAS-level NextGen Requirements at Full Operating Capability (FOC) DRAFT

  2. Full Operating Capability NAS-Level Requirements • Core Team: Lead by Cheryl Souders. Bob Showalter, Lorraine Leonard, Steve Abelman, Cecilia Miner, Frances Bayne, James Tauss, Ernie Dash, Chnur Johnston, Jack May • Assumes NextGen Concepts of Operations & Weather ConOps • NAS-Level requirements. Not allocated to particular solutions • Single Authoritative Source (SAS) Weather Requirements • Primitive-Level • “Constructions”, if needed by user, are created outside the SAS using SAS information (freezing level, cloud layer, gust front, VIL) • Acknowledged some not achievable by FOC • Convection is a cause of aviation weather hazards. Convection itself, is not the hazard

  3. What differences can you identify between this convection…..

  4. …and this convection

  5. A Gust Front is a Convective Hazard

  6. Thunderstorm dangers can be far from heavy precipitation and lightning

  7. Weather Hazards caused by Convection • Turbulence • Lightning • In-flight icing • Gusty surface wind speed and direction • Low-level wind shear • Hail • Tornado • Mesocyclone • Low ceiling and visibility • Heavy precipitation • Microburst (downdraft)

  8. 2025 FOC NAS-LevelSpatial Resolution Requirements for Weather Hazard caused by Convection DRAFT

  9. Summary • FOC draft requirements are NAS-Level, not solution • Out for review by January 2011 • Assumes convection is a cause, not an explicit hazard • FOC “convective” requirements identify specific hazards • A “construction” which combines weather hazards caused by convection has been labeled the Convective Hazard Volume (CHV)

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