1. Mesaba Airlines Supplemental PIREP Program Update Jamie Braid GLFE 2 nd Status Meeting August 24-25, 2005

2. Highlights 3523 PIREPs Collected (July 14, 2005) 3523 PIREPs Collected (July 14, 2005) Flight Modes Flight Modes Climb = 1180 Climb = 1180 Cruise = 1323 Cruise = 1323 Descent = 1020 Descent = 1020 59 Moderate or Greater Turbulence Cases 59 Moderate or Greater Turbulence Cases 32 Moderate or Greater Icing Cases 32 Moderate or Greater Icing Cases

5. Data Availability Data available on the following website: Data available on the following website: http://www.rap.ucar.edu/research/verification/MESAB A/mesaba.html http://www.rap.ucar.edu/research/verification/MESAB A/mesaba.html http://www.rap.ucar.edu/research/verification/MESAB A/mesaba.html http://www.rap.ucar.edu/research/verification/MESAB A/mesaba.html Available in four different text file formats Available in four different text file formats Header file Header file Has information on each of the data columns as well as on each of the QC flags used. Has information on each of the data columns as well as on each of the QC flags used. Data Summary Data Summary Shows an overall breakdown of some select columns of data. Shows an overall breakdown of some select columns of data.

7. Quality Control Many of the variable went through some type of QC. Many of the variable went through some type of QC. Changes to the data were made only when it made sense. Changes to the data were made only when it made sense. Every PIREP that required a change was given a flag which documents the variable changed. Every PIREP that required a change was given a flag which documents the variable changed.

8. QC - Altitude (Flight Mode) The Old The New

9. QC – Location (The Old)

10. QC – Location (The New)

11. Future Work Complete an analysis of Mesaba PIREPs matched to TAMDAR data. Complete an analysis of Mesaba PIREPs matched to TAMDAR data. Poster at the Annual AMS meeting in Atlanta. Poster at the Annual AMS meeting in Atlanta. Continue to fine tune the data to make it as clean as possible. Continue to fine tune the data to make it as clean as possible. Continue to collect and log PIREPs from Mesaba Airlines through the 2 nd half of the GLFE. Continue to collect and log PIREPs from Mesaba Airlines through the 2 nd half of the GLFE.