1 phased array weather radar program history spy-1 vs. nexrad 1994 1995 1996 1997 1998 1999 2000...

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1 Phased Array Weather Radar Program History SPY-1 vs. NEXRAD 1994 1995 1996 1997 1998 1999 2000 1991 1992 1993 2001 2002 1996-1997 1993 -1995 DTASS 1989-1993 TASS IR&D MOTR Wx Experiments 1995-1996 1998-2000 TEP At-Sea Demo Nat’l Wx Testbed 2000-2002 SPY-1 Weather Experiment 2000-2002 DUS&T

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Page 1: 1 Phased Array Weather Radar Program History SPY-1 vs. NEXRAD 1994 1995 1996 1997 1998 1999 2000 1991 1992 1993 2001 2002 1996-1997 1993 -1995 DTASS 1989-1993

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Phased Array Weather Radar Program History

SPY-1 vs. NEXRAD

19941994 19951995 19961996 19971997 19981998 19991999 2000200019911991 19921992 19931993 20012001 20022002

1996-19971993 -1995

DTASS

1989-1993

TASS IR&D MOTR Wx Experiments1995-1996 1998-2000

TEP At-Sea Demo Nat’l Wx Testbed2000-2002

SPY-1 Weather Experiment

2000-2002

DUS&T

Page 2: 1 Phased Array Weather Radar Program History SPY-1 vs. NEXRAD 1994 1995 1996 1997 1998 1999 2000 1991 1992 1993 2001 2002 1996-1997 1993 -1995 DTASS 1989-1993

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GoalGoal •Validate Basic Spectral Moments from SPY-1 with NEXRAD

Result •SPY-1 Matches NEXRAD Reflectivity, Velocity, Spectrum Spread•SPY-1 Demonstrates Better Temporal Resolution

NOTE: Threshold Applied to SPY-1 Reflectivity Map Above Noise Floor

SPY-1 (Phased Array Radar): 1 minute scan

NEXRAD: 6 minute scan

SPY-1 vs. NEXRAD Composite Reflectivity Hurricane Fran Remnants

Phased Array Radar Accurate Reflectivity Measurements 1996

Page 3: 1 Phased Array Weather Radar Program History SPY-1 vs. NEXRAD 1994 1995 1996 1997 1998 1999 2000 1991 1992 1993 2001 2002 1996-1997 1993 -1995 DTASS 1989-1993

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