Project # 2006-146 INTEX-B2
INtercontinental Chemical Transport EXperiment, Phase B2
Principal Investigator(s): Bill Brune, et al.
NSF/NCAR C-130Q Hercules (N130AR)
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Project # 2006-146 INTEX-B2 INtercontinental Chemical Transport EXperiment, Phase B2 Principal Investigator(s): Bill Brune, et al. NSF/NCAR C-130Q Hercules (N130AR) |
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Summary of Calibration Factors
Calibration Maneuvers
RAF uses sets of in-flight maneuvers specifically designed to help evaluate the performance of the 3-D wind measurement system on the aircraft. Sets of maneuvers were flown during RF02. The variations observed fell within acceptable limits.
| Calibration Coefficients - Pre-INTEX-B | ||||
|---|---|---|---|---|
| Variable | Variable Name | C1 | C2 | C3 |
| Vertical Differential Pressure, Radome | ADIFR | 0.193 | 6.9751 | 0.0066 |
| Horizontal Differential Pressure, Radome | BDIFR | 0.15 | 5.1508 | 0 |
| CN Counter Inlet Temperature | CNTEMP | 6.85 | 4.668 | -0.0056 |
| TSI CN Counter Output | CNTS | 0 | 1 | |
| Dew/Frost Point Temperature, Fuselage Bottom | DPB | 0.162 | 9.9907 | -0.0007 |
| Dew/Frost Point Temperature, Fuselage Top | DPT | -0.03 | 9.9004 | 0.0035 |
| Pyrgeometer Dome Temperature, Bottom | DTB* | -12.8 | -4.2869 | 0.1715 |
| Pyrgeometer Dome Temperature, Top | DTT* | -12.1 | -4.2837 | 0.1664 |
| Raw CN Counter Sample Flow Rate | FCN | 0.014 | 0.2045 | -0.00098 |
| Geometric (Radar) Altitude (APN-232) | HGM232 | 0 | 1 | |
| Raw Infrared Irradiance, Bottom | IRB | 503.8 | 156.645 | 0.3853 |
| Raw Infrared Irradiance, Top | IRT | 264.9 | 137.752 | -0.0794 |
| Interior Cabin Static Pressure | PCAB | -2.92 | -109.068 | -0.0588 |
| CN Counter Inlet Pressure | PCN | 541.32 | 54.156 | -0.0065 |
| Raw PMS-King Liquid Water Content Output | PLWC | 50 | 5 | |
| Raw PSFD, Low-order word | PSFD1 | 0 | 1 | |
| Raw PSFD, High-order word | PSFD2 | 0 | 1 | |
| Raw Dynamic Pressure, Fuselage | QCF | 86.84 | 8.6143 | -0.0002 |
| Raw Dynamic Pressure, Fuselage Right | QCFR | 69.08 | 6.8974 | -0.0011 |
| Raw Dynamic Pressure, Radome | QCR | 85.31 | 8.6435 | -0.0001 |
| Raw Icing-Rate Indicator | RICE | 0 | 1 | |
| Radiometric Surface Temperature | RSTB | -48.76 | 9.2063 | 0.0807 |
| Radiometric Surface Temperature | RSTB1 | -49.98 | 9.4662 | 0.068 |
| Radiometric Sky/Cloud-Base Temperature | RSTT | -55 | 10.5257 | 0.0304 |
| Pyrgeometer Sink Temperature, Bottom | STB* | -12.7 | -4.2899 | 0.1703 |
| Pyrgeometer Sink Temperature, Top | STT* | -12.56 | -4.3052 | 0.171 |
| Shortwave Irradiance, Bottom | SWB | 2877.7 | 286.572 | 0.0285 |
| Shortwave Irradiance, Top | SWT | 3184 | 320.2225 | 0.0323 |
| Total Temperature, Radome Left | TTRL | -1.69 | 6.1509 | -0.0293 |
| Total Temperature, Radome Right | TTRR | -3.16 | 6.2415 | -0.0264 |
| Total Temperature, Deiced Wing | TTWH | -0.737 | 6.3277 | -0.0157 |
| Ultraviolet Irradiance, Bottom | UVB | 37.6 | 3.7371 | -0.0011 |
| Ultraviolet Irradiance, Top | UVT | 79.3 | 7.9259 | 0.0008 |
| Gerber PV-100 Probe Liquid Water Content | XGLWC | -0.07 | 1 | |
| Gerber PV-100 Effective Droplet Radius | XGREFF | 0 | 1 | |
| Gerber PV-100 Particle Surface Area (Raw) | XGSFC | 0 | 1 | |
| U of H Ultra-fine CN Concentration | XUCN | -1400 | 100000 | |
| Raw RAF Fast Humidity Output | XUVHS | 0 | 1 | |
| Calibration Coefficients - Post-INTEX-B | |||||
|---|---|---|---|---|---|
| Variable | Variable Name | C1 | C2 | C3 | |
| Vertical Differential Pressure, Radome | ADIFR | 0.193 | 6.9751 | 0.0066 | |
| Horizontal Differential Pressure, Radome | BDIFR | 0.15 | 5.1508 | 0 | |
| CN Counter Inlet Temperature | CNTEMP | 6.85 | 4.668 | -0.0056 | |
| TSI CN Counter Output | CNTS | 0 | 1 | ||
| Dew/Frost Point Temperature, Fuselage Bottom | DPB | 0.162 | 9.9907 | -0.0007 | |
| Dew/Frost Point Temperature, Fuselage Top | DPT | -0.03 | 9.9004 | 0.0035 | |
| Pyrgeometer Dome Temperature, Bottom | DTB* | -12.8 | -4.2869 | 0.1715 | |
| Pyrgeometer Dome Temperature, Top | DTT* | -12.1 | -4.2837 | 0.1664 | |
| Raw CN Counter Sample Flow Rate | FCN** | -0.013 | 0.2092 | ||
| Geometric (Radar) Altitude (APN-232) | HGM232 | 0 | 1 | ||
| Raw Infrared Irradiance, Bottom | IRB | 503.8 | 156.645 | 0.3853 | |
| Raw Infrared Irradiance, Top | IRT | 264.9 | 137.752 | -0.0794 | |
| Interior Cabin Static Pressure | PCAB | -2.92 | -109.068 | -0.0588 | |
| CN Counter Inlet Pressure | PCN | 541.32 | 54.156 | -0.0065 | |
| Raw PMS-King Liquid Water Content Output | PLWC | 50 | 5 | ||
| Raw PSFD, Low-order word | PSFD1 | 0 | 1 | ||
| Raw PSFD, High-order word | PSFD2 | 0 | 1 | ||
| Raw Dynamic Pressure, Fuselage | QCF | 86.84 | 8.6143 | -0.0002 | |
| Raw Dynamic Pressure, Fuselage Right | QCFR | 69.08 | 6.8974 | -0.0011 | |
| Raw Dynamic Pressure, Radome | QCR | 85.31 | 8.6435 | -0.0001 | |
| Raw Icing-Rate Indicator | RICE | 0 | 1 | ||
| Radiometric Surface Temperature | RSTB | -48.76 | 9.2063 | 0.0807 | |
| Radiometric Surface Temperature | RSTB1 | -49.98 | 9.4662 | 0.068 | |
| Radiometric Sky/Cloud-Base Temperature | RSTT | -55 | 10.5257 | 0.0304 | |
| Pyrgeometer Sink Temperature, Bottom | STB* | -12.7 | -4.2899 | 0.1703 | |
| Pyrgeometer Sink Temperature, Top | STT* | -12.56 | -4.3052 | 0.171 | |
| Shortwave Irradiance, Bottom | SWB | 2877.7 | 286.572 | 0.0285 | |
| Shortwave Irradiance, Top | SWT | 3184 | 320.2225 | 0.0323 | |
| Total Temperature, Radome Left | TTRL | -1.69 | 6.1509 | -0.0293 | |
| Total Temperature, Radome Right | TTRR | -3.16 | 6.2415 | -0.0264 | |
| Total Temperature, Deiced Wing | TTWH | -0.737 | 6.3277 | -0.0157 | |
| Ultraviolet Irradiance, Bottom | UVB | 37.6 | 3.7371 | -0.0011 | |
| Ultraviolet Irradiance, Top | UVT | 79.3 | 7.9259 | 0.0008 | |
| Gerber PV-100 Probe Liquid Water Content | XGLWC | -0.07 | 1 | ||
| Gerber PV-100 Effective Droplet Radius | XGREFF | 0 | 1 | ||
| Gerber PV-100 Particle Surface Area (Raw) | XGSFC | 0 | 1 | ||
| U of H Ultra-fine CN Concentration | XUCN | -1400 | 100000 | ||
| Raw RAF Fast Humidity Output | XUVHS | 0 | 1 | ||
| * Note: Second-order polynomial approximation provided by standard C-130Q sensor calibration did not describe pyrgeometer sink and dome temperatures very well, so a third-order calibration was applied after the end of the project. INTEX-B IRTC and IRBC were produced using the following calibration coefficients: | |||||
| Variable Name | C1 | C2 | C3 | C4 | |
| Pyrgeometer Dome Temperature, Bottom | DTB | -12.509 | -3.068 | 0.1826 | -0.0212 |
| Pyrgeometer Dome Temperature, Top | DTT | -12.017 | -3.0896 | 0.1858 | -0.0206 |
| Pyrgeometer Sink Temperature, Bottom | STB | -12.426 | -3.0765 | 0.1811 | -0.0212 |
| Pyrgeometer Sink Temperature, Top | STT | -12.222 | -3.0801 | 0.1851 | -0.021 |
| ** Note: FCN was calibrated after INTEX-B using a volume flow meter. New calibration, which is within 2% of the old calibration, was applied to production data. | |||||
PMS-1D Probe Bin Sizes
The SPP-100 primary, SPP-100 experimental, SPP-200, SPP-300 and 260X 1-D probes were used on the project. The minimum droplet size (micrometers) for each sampling bin is listed below.
| PMS-1D Probe Bin Diameter (µm) | ||||
|---|---|---|---|---|
| bin | SPP-100 (Range 0), S/N 122 |
SPP-200 | SPP-300 | SPP-100 experimental (Range 0), S/N 109 |
| #1 | 2.25 | 0.095 | 0.275 | 1.0 |
| #2 | 3.75 | 0.105 | 0.325 | 2.7 |
| #3 | 5.25 | 0.115 | 0.375 | 4.45 |
| #4 | 6.75 | 0.125 | 0.425 | 6.2 |
| #5 | 8.25 | 0.135 | 0.475 | 7.95 |
| #6 | 9.75 | 0.145 | 0.525 | 9.7 |
| #7 | 11.25 | 0.155 | 0.575 | 11.45 |
| #8 | 12.75 | 0.165 | 0.625 | 13.2 |
| #9 | 14.25 | 0.175 | 0.675 | 14.95 |
| #10 | 15.75 | 0.185 | 0.725 | 16.7 |
| #11 | 17.25 | 0.205 | 1.45 | 18.45 |
| #12 | 18.75 | 0.225 | 2.35 | 20.2 |
| #13 | 20.25 | 0.245 | 3.25 | 21.95 |
| #14 | 21.75 | 0.265 | 4.15 | 23.7 |
| #15 | 23.25 | 0.29 | 5.05 | 25.45 |
| #16 | 24.75 | 0.35 | 5.95 | 27.2 |
| #17 | 26.25 | 0.45 | 6.85 | 28.95 |
| #18 | 27.75 | 0.55 | 7.75 | 30.7 |
| #19 | 29.25 | 0.70 | 8.65 | 32.45 |
| #20 | 30.75 | 0.90 | 9.55 | 34.2 |
| #21 | 32.25 | 1.10 | 10.50 | 35.95 |
| #22 | 33.75 | 1.30 | 11.50 | 37.7 |
| #23 | 35.25 | 1.50 | 12.50 | 39.45 |
| #24 | 36.75 | 1.70 | 13.50 | 41.2 |
| #25 | 38.25 | 1.90 | 14.50 | 42.95 |
| #26 | 39.75 | 2.10 | 15.50 | 44.7 |
| #27 | 41.25 | 2.30 | 16.50 | 46.45 |
| #28 | 42.75 | 2.50 | 17.50 | 48.2 |
| #29 | 44.25 | 2.70 | 18.50 | 49.95 |
| #30 | 45.75 | 2.90 | 19.50 | 51.7 |
| #31 | 47.75 | 3.10 | 20.50 | 53.45 |
The 260X probe provides measurements for 64 bins of 10 µm each. Airspeed limitations place the initial sizing threshold at 50 µm.