Project #2000-828 AESOP/TEXAQS-2000
Texas Air Quality Study
Principal Investigators: Fred Fehsenfeld, et al.
NSF/NCAR L-188 Electra (N308D)
Summary of Calibration Factors
| Pre-Calibration - 08/03/2000 | |||||
|---|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 | |
| Total Temperature-Radome Left (C) | TTRL | -9.677 | 5.005 | -.0065 | |
| Total Temperature-Radome Right (C) | TTRR | -10.064 | 5.072 | .0000 | |
| Total Temperature-Heated Fuse.(C) | TTFH | -9.267 | 5.129 | -.0019 | |
| Remote Sky Temp. Top (C) | RSTT | -48.300 | 9.244 | .0808 | |
| Downward Shortwave Irrad. (W/M2) | SWT | 2914.500 | 290.764 | .0391 | |
| Upward Shortwave Irrad. (W/M2) | SWB | 2555.700 | 254.806 | -.0178 | |
| Downward Infrared Irrad. (W/M2) | IRT | 330.700 | 137.813 | .2137 | |
| Upward Infrared Irrad. (W/M2) | IRB | 375.000 | 155.084 | -.0661 | |
| Downward Ultraviolet Irrad. (W/M2) | UVT | 80.700 | 8.031 | .0010 | |
| Upward Ultraviolet Irrad. (W/M2) | UVB | 84.000 | 8.367 | -.0012 | |
| Dew Point Temperature-Bottom (C) | DPB | 1.000 | 10.020 | .0109 | |
| Dew Point Temperature-Top (C) | DPT | 0.068 | 9.956 | .0197 | |
| Vertical Press. Diff. Radome (mbar) | ADIFR | 0.320 | 5.183 | -.0002 | |
| Horizontal Press. Diff. Radome (mbar) | BDIFR | -2.176 | 5.255 | .0025 | |
| Dynamic Pressure-Radome (mbar) | QCR | 69.594 | 6.912 | -.0043 | |
| Dynamic Pressure-Fuselage (mbar) | QCF | 86.463 | 8.621 | .0008 | |
| Dynamic Pressure-Wing (mbar) | QCW | 69.044 | 6.903 | -.0007 | |
| CN Inlet Pressure (mbar) | PCN | 542.428 | 54.202 | -.0078 | |
| Static Pressure-Wing (mbar) | PSW | 541.719 | 54.235 | -.0074 | |
| Cabin Pressure (mbar) | PCAB | 514.967 | 51.606 | .0157 | |
| Remote Surface Temp. (C) | RSTB | 15.800 | -18.382 | 3.947 | -.1778 |
| Remote Surface Temp. (C) | RSTB1 | 9.600 | -15.836 | 3.617 | -.1636 |
| Post-Calibration - 09/22/2000 | ||||
|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 |
| Total Temperature-Radome Left (C) | TTRL | -9.717 | 4.998 | -.0044 |
| Total Temperature-Radome Right (C) | TTRR | -9.992 | 5.066 | -.0015 |
| Total Temperature-Heated Fuse.(C) | TTFH | -9.804 | 5.148 | -.0013 |
| Remote Sky Temp. Top (C) | RSTT | -48.300 | 9.244 | .0808 |
| Downward Shortwave Irrad. (W/M2) | SWT | 2908.400 | 286.671 | -.2775 |
| Upward Shortwave Irrad. (W/M2) | SWB+ | 2543.200 | 252.825 | -.0967 |
| Downward Infrared Irrad. (W/M2) | IRT | 329.700 | 137.576 | .1838 |
| Upward Infrared Irrad. (W/M2) | IRB | 374.100 | 155.835 | .1869 |
| Downward Ultraviolet Irrad. (W/M2) | UVT | 80.645 | 8.031 | .0011 |
| Upward Ultraviolet Irrad. (W/M2) | UVB+ | 77.400 | 7.718 | .0001 |
| Dew Point Temperature-Bottom (C) | DPB | 1.107 | 10.037 | .0219 |
| Dew Point Temperature-Top (C) | DPT | 0.116 | 9.962 | -.0431 |
| Vertical Press. Diff. Radome (mbar) | ADIFR | 0.705 | 5.160 | -.0013 |
| Horizontal Press. Diff. Radome (mbar) | BDIFR | -2.617 | 5.198 | -.0017 |
| Dynamic Pressure-Radome (mbar) | QCR | 69.088 | 6.900 | -.0009 |
| Dynamic Pressure-Fuselage (mbar) | QCF | 86.099 | 8.625 | .0002 |
| Dynamic Pressure-Wing (mbar) | QCW | 68.681 | 6.918 | .0038 |
| CN Inlet Pressure (mbar) | PCN | 542.462 | 54.156 | -.0083 |
| Static Pressure-Wing (mbar) | PSW | 541.260 | 54.195 | -.0062 |
| Cabin Pressure (mbar) | PCAB | 515.448 | 51.682 | -.0073 |
| Remote Surface Temp. (C) | RSTB | -64.000 | 11.775 | .0000 |
| Remote Surface Temp. (C) | RSTB1 | -51.957 | 10.041 | .0225 |
* Differences between the Pre- and Post-Calibrations were generally within acceptable levels, thus indicating generally stable response. Except for the channels indicated, Pre-Project calibrations have been used in the final data processing.
+ Certain sensors had to be replaced during the course of the experiment. Post-Calibration coefficients were used from the point of the exchange to the end of the project.
Calibration Maneuvers 09/03/2000, 09/07/2000
RAF uses sets of in-flight maneuvers specifically designed to help evaluate the performance of the 3-D wind measurement system on the aircraft. One set of maneuvers was split between flights RF10 and RF12 due to tight time limitations on the flight profiles. The variations observed fell within acceptable limits.
PMS - 1-D Probe Bin Sizes
The PCASP, FSSP-100 and FSSP-300 1-D probes were used on the project. The lower limit particle diameter sizes (micrometers) for each sampling bin are listed below along with the upper limit for bin #15 (listed in bin #16).
| PMS-1D Probe Bin Diameter (µm) | |||
|---|---|---|---|
| bin | FSSP-100 (Range 0) | FSSP-300 | PCASP |
| #1 | 2.22 | 0.30 | 0.10 |
| #2 | 6.27 | 0.35 | 0.12 |
| #3 | 10.32 | 0.40 | 0.14 |
| #4 | 13.30 | 0.45 | 0.17 |
| #5 | 16.34 | 0.50 | 0.20 |
| #6 | 19.60 | 0.55 | 0.25 |
| #7 | 23.10 | 0.60 | 0.30 |
| #8 | 26.76 | 0.68 | 0.40 |
| #9 | 30.96 | 0.75 | 0.50 |
| #10 | 35.60 | 0.89 | 0.70 |
| #11 | 40.30 | 1.00 | 0.90 |
| #12 | 45.30 | 1.07 | 1.20 |
| #13 | 50.30 | 1.22 | 1.50 |
| #14 | 55.30 | 1.35 | 2.00 |
| #15 | 60.30 | 1.45 | 2.50 |
| #16 | 65.41 | 1.56 | 3.00 |
| #17 | 2.00 | ||
| #18 | 2.70 | ||
| #19 | 3.40 | ||
| #20 | 4.05 | ||
| #21 | 4.75 | ||
| #22 | 5.55 | ||
| #23 | 6.40 | ||
| #24 | 7.30 | ||
| #25 | 8.15 | ||
| #26 | 9.05 | ||
| #27 | 9.90 | ||
| #28 | 11.50 | ||
| #29 | 13.90 | ||
| #30 | 16.35 | ||
| #31 | 18.75 | ||
| #32 | 20.00 | ||