IAH George Bush Intercontinental Airport (in Houston)

IFR Instrument Flight Rule

IMC instrument meteorological conditions

JFK John F. Kennedy International Airport

JPDO Joint Planning and Development Office

LAAS Local Area Augmentation System

LaRC Langley Research Center (NASA)

LES large eddy simulation

NASA National Aeronautics and Space Administration

NCAR National Center for Atmospheric Research

NextGen Next Generation Air Transportation System

NM nautical mile

NOAA National Oceanic and Atmospheric Administration

NRC National Research Council

OMB Office of Management and Budget

OSTP Office of Science and Technology Policy

R&D research and development

REDAC Research, Engineering and Development Advisory Committee

RVSM reduced vertical separation minimum

SFO San Francisco International Airport

SSWG Separation Standards Working Group (of the FFA’s REDAC)

STL Lambert-St. Louis International Airport

VESA Vortex Encounter Severity Assessment

VFR Visual Flight Rule

VMC visual meteorological conditions

WAAS Wide Area Augmentation System

WRF Weather Research and Forecasting

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