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SCOS97-NARSTO Data Analysis Conference SCOS97-NARSTO Upper-Air Meteorological Data Wind / RASS Profiler Processing / Objective QC Bob Weber NOAA/ETL Boulder,

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Presentation on theme: "SCOS97-NARSTO Data Analysis Conference SCOS97-NARSTO Upper-Air Meteorological Data Wind / RASS Profiler Processing / Objective QC Bob Weber NOAA/ETL Boulder,"— Presentation transcript:

1 SCOS97-NARSTO Data Analysis Conference SCOS97-NARSTO Upper-Air Meteorological Data Wind / RASS Profiler Processing / Objective QC Bob Weber NOAA/ETL Boulder, Colorado Rip Off of Robert Baxter

2 SCOS97-NARSTO Data Analysis Conference Wind / RASS Profiler Data Collection June - October 1997  26 Sites ARB VCAPCD SCAQM SDAPCD USAF STI NOAA  SOP Real-Time Meteorological Products Quality Control Radar Doppler Spectral Moments Post Processing / Quality Control Radar Doppler Spectra Post Processing / Quality Control

3 SCOS97-NARSTO Data Analysis Conference On-Line Real-Time Meteorological Products  First Look Winds and Temperatures  Radar Diagnostics  Incomplete Processing  Inadequate Quality Control  Unreliable for Critical Applications  Requires Post Analysis

4 SCOS97-NARSTO Data Analysis Conference Wind / RASS Profiler Operations / Data Collection Radar Spectral Moments  Multiple Antenna Beams (3 - 5)  Time Sampling ~ 1 Minute  Spatial Sampling ~ 50-100 Meters  Doppler Velocity Spectral Signal Strength Spectral Signal Doppler Broadening

5 SCOS97-NARSTO Data Analysis Conference Wind / RASS Profiler Post Processing / Quality Control Hourly / Daily  Contamination Rejection Noise, RFI, birds, ground clutter...  Objective Quality Control Time-Height Consistency  Hourly-Averaged Radar Spectral Moments  Meteorological Products

6 SCOS97-NARSTO Data Analysis Conference Site Locations

7 SCOS97-NARSTO Data Analysis Conference Time-Height Consistency Objective Analysis  Compare Data with Interpolated Value using neighbors in time and in height Quality Control  Recognize Patterns of Continuous Data over time and over height (hourly, daily)

8 SCOS97-NARSTO Data Analysis Conference  “Met 0” hourly QC > hourly average > daily QC > Correct Vertical Motion > Met Products  “Met 1” * Correct Vertical Motion > hourly QC > hourly average > daily QC > Met Products   Meteorological Noise, Radar Signal Contamination  ? - choose higher objective QC value - choose neither - use other subjective criteria Objective / Subjective

9 SCOS97-NARSTO Data Analysis Conference Meteorological Noise  Small-Scale Motion Precipitation, Convection, Waves, Fronts, …  Complex Terrain Land-Sea, Mountains, Land Use, …  Adverse Effects on Performance Wind/RASS Profiler Models

10 SCOS97-NARSTO Data Analysis Conference Final Data Set  Pacific Standard Time  Correction for Antenna Orientation  Merged High and Low modes  QC Codes

11 SCOS97-NARSTO Data Analysis Conference QC Codes QC = 0 valid = 5 missing = 6 erroneous ( > 1 m/s or 10%, 1 Deg C ) = 7 suspect ( Objective QC ) = 8 invalid ( Objective QC ) = 9 no data

12 SCOS97-NARSTO Data Analysis Conference 1:00 Jim Pederson (ARB) Characterization of Upper Air Meteorology Conditions on IOP Days 1:15 Clinton MacDonald (STI) STI Analysis of 1997 Upper Air Met Data in SoCAB 1:30 Bob Weber (NOAA) Interpreting Data from a RWP/RASS Network 1:15 Bob Baxter (Parsons) Quality Assurance of Upper Air Met Data 2:20 to 2:30 Refreshment break for ten minutes 2:30 Clinton MacDonald (STI) Spatial and Temporal Observations of the Planetary Boundary Layer During Ozone Episodes in Southern California 2:50 Robert Bornstein (SJSU) The 4-7 August SCOS97 Ozone Episode: Comparisons between Observations and MM5 Simulations 3:15 to 3:20 Refreshment Break 3:20 Clinton MacDonald (STI) Moderator-Roundtable on Use of Aloft Meteorological Data: Lidar, Radar Wind Profiler Radio Acoustic Sounding Networks, Sodar Networks (60M) 4:20 Session III Concludes SCOS97-NARSTO Data Analysis Conference 13 February, 2001 Day 1-1:00 to 4:20 pm Session III: Upper Air & Other Meteorological Data

13 SCOS97-NARSTO Data Analysis Conference Measure Winds ???? 1.3-1.7 m/s Clear Air co-located wind profilers (Strauch et al., 1987) 2-4 m/s Precipitation co-located wind profilers (Wuertz et al., 1988) 2.5 m/s 2 years wind profiler / rawinsonde (Weber & Wuertz, 1989) 3.1 m/s co-located rawinsondes (Hoehne, 1980)

14 SCOS97-NARSTO Data Analysis Conference

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