Project #2004-109 GOTEX (Gulf Of Tehuantepec EXperiment)
K. Melville and Carl Friehe
NSF/NCAR C-130Q Hercules (N130AR)
|
Project #2004-109 GOTEX (Gulf Of Tehuantepec EXperiment) K. Melville and Carl Friehe NSF/NCAR C-130Q Hercules (N130AR) |
|
| Pre-Calibration - 12/23/2003 | ||||
|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 |
| Dynamic Pressure: Fuselage Left (mbar) | QCF | 86.976 | 8.605 | -0.0004 |
| Dynamic Pressure: Radome (mbar) | QCR | 85.565 | 8.625 | 0.0000 |
| Dynamic Pressure: Fuselage Right (mbar) | QCFR | 68.792 | 6.888 | -0.0010 |
| Total Temperature: Radome Right (C) | TTRR | -2.529 | 5.989 | -0.0027 |
| Total Temperature: Radome Left (C) | TTRL | -0.200 | 5.984 | 0.0009 |
| Total Temperature: Heated Wing (C) | TTWH | 0.129 | 6.120 | -0.0034 |
| Remote Surface Temp.: Bot. (C) | RSTB | -47.320 | 8.852 | 0.1069 |
| Remote Surface Temp.: Bot. (C) | RSTB1 | -45.800 | 8.764 | 0.0976 |
| Remote Surface Temp.: Top (C) | RSTT | -55.000 | 10.526 | 0.0304 |
| Downward Shortwave Irrad. (W/M2) | SWT | 2907.600 | 291.100 | -0.0355 |
| Upward Shortwave Irrad. (W/M2) | SWB | 2660.100 | 264.915 | 0.0436 |
| Downward Infrared Irrad. (W/M2) | IRT | 224.000 | 127.423 | 0.0126 |
| Upward Infrared Irrad. (W/M2) | IRB | 471.640 | 143.200 | -0.2976 |
| Downward Ultraviolet Irrad. (W/M2) | UVT | 64.619 | 6.501 | 0.0079 |
| Upward Ultraviolet Irrad. (W/M2) | UVB | 58.168 | 5.791 | 0.0004 |
| Dew Point Temperature Bottom (C) | DPB | -0.228 | 10.007 | 0.0010 |
| Dew Point Temperature Top (C) | DPT | -0.100 | 9.941 | -0.0028 |
| Vertical Presr. Diff. Radome (mbar) | ADIFR | 0.076 | 5.153 | 0.0002 |
| Horizontal Presr. Diff. Radome (mbar) | BDIFR | 0.029 | 5.149 | -0.0002 |
| Cabin Pressure (mbar) | PCAB | -2.920 | -109.068 | -0.0588 |
| CN Inlet Pressure (mbar) | PCN | 541.320 | 54.156 | -0.0065 |
| CN Flow Rate (slpm) | FCN | 0.014 | 0.204 | -0.0010 |
| Trailing Cone Diff. Pressure (mbar) | PCONE | 0.187 | 1.762 | 0.0008 |
| Post Calibration - 3/09/2004 | ||||
|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 |
| Dynamic Pressure: Fuselage Left (mbar) | QCF | 87.052 | 8.612 | -0.0008 |
| Dynamic Pressure: Radome (mbar) | QCR | 85.705 | 8.638 | 0.0001 |
| Dynamic Pressure: Fuselage Right (mbar) | QCFR | 68.301 | 6.891 | -0.0010 |
| Total Temperature: Radome Right (C) | TTRR | -2.401 | 6.004 | -0.0042 |
| Total Temperature: Radome Left (C) | TTRL+ | -0.252 | 5.993 | 0.0010 |
| Total Temperature: Heated Wing (C) | TTWH | 0.107 | 6.131 | -0.0017 |
| Remote Surface Temp.: Bot. (C) | RSTB | -54.976 | 11.030 | -0.0477 |
| Remote Surface Temp.: Bot. (C) | RSTB1 | -58.702 | 11.513 | -0.0396 |
| Remote Surface Temp.: Top (C) | RSTT | -50.193 | 9.635 | 0.0553 |
| Downward Shortwave Irrad. (W/M2) | SWT | 2907.400 | 290.543 | -0.0588 |
| Upward Shortwave Irrad. (W/M2) | SWB | 2680.000 | 271.500 | 0.5501 |
| Downward Infrared Irrad. (W/M2) | IRT | 224.970 | 127.334 | 0.0263 |
| Upward Infrared Irrad. (W/M2) | IRB | 472.700 | 142.692 | -0.3659 |
| Downward Ultraviolet Irrad. (W/M2) | UVT+ | 75.000 | 7.516 | 0.0006 |
| Upward Ultraviolet Irrad. (W/M2) | UVB | 58.124 | 5.804 | 0.0005 |
| Dew Point Temperature Bottom (C) | DPB | 0.063 | 10.002 | 0.0012 |
| Dew Point Temperature Top (C) | DPT | 0.610 | 9.979 | -0.0133 |
| Vertical Presr. Diff. Radome (mbar) | ADIFR | 0.051 | 5.154 | 0.0003 |
| Horizontal Presr. Diff. Radome(mbar) | BDIFR | 0.009 | 5.150 | 0.0000 |
| Cabin Pressure (mbar) | PCAB | -3.367 | -109.111 | -0.0565 |
| CN Inlet Pressure (mbar) | PCN | 540.900 | 54.298 | -0.0080 |
| Trailing Cone Diff. Pressure (mbar) | PCONE | 0.238 | 1.754 | 0.0002 |
| + 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: 01/22/2004, 01/28/2004, 02/13/2004, 02/29/2004
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 on two test flights and two of the research flights: TF01, TF03, RF04 and RF11, respectively. In each case the variations observed fell within acceptable limits.
PMS-1D Probe Bin Sizes
The SPP100, SPP200, SPP300 and 260X 1-D probes were used on the project. The minimum droplet size (micrometers) for each sampling bin are listed below.
| PMS-1D Probe Bin Diameter (µm) | |||
|---|---|---|---|
| bin | SPP100 (Range 0) |
SPP200 | SPP300 |
| #1 | 1.00 | 0.001 | 0.30 |
| #2 | 2.70 | 0.002 | 0.35 |
| #3 | 4.45 | 0.003 | 0.40 |
| #4 | 6.20 | 0.004 | 0.45 |
| #5 | 7.95 | 0.005 | 0.50 |
| #6 | 9.70 | 0.006 | 0.55 |
| #7 | 11.45 | 0.046 | 0.60 |
| #8 | 13.20 | 0.078 | 0.65 |
| #9 | 14.95 | 0.118 | 0.70 |
| #10 | 16.70 | 0.170 | 0.80 |
| #11 | 18.45 | 0.209 | 0.90 |
| #12 | 20.20 | 0.248 | 1.00 |
| #13 | 21.95 | 0.288 | 1.20 |
| #14 | 23.70 | 0.340 | 1.40 |
| #15 | 25.45 | 0.451 | 1.70 |
| #16 | 27.20 | 0.556 | 2.00 |
| #17 | 28.95 | 0.654 | 2.50 |
| #18 | 30.70 | 0.758 | 3.00 |
| #19 | 32.45 | 0.869 | 3.50 |
| #20 | 34.20 | 0.967 | 4.00 |
| #21 | 35.95 | 1.070 | 4.50 |
| #22 | 37.70 | 1.176 | 5.00 |
| #23 | 39.45 | 1.280 | 6.00 |
| #24 | 41.20 | 1.384 | 7.00 |
| #25 | 42.95 | 1.490 | 8.00 |
| #26 | 44.70 | 1.590 | 9.00 |
| #27 | 46.45 | 1.696 | 10.00 |
| #28 | 48.20 | 1.800 | 12.00 |
| #29 | 49.95 | 1.904 | 14.00 |
| #30 | 51.70 | 2.010 | 17.00 |
| #31 | 53.45 | 2.112 | 20.00 |
The 260X probe provides measurements for 64 bins of 10 µm each. Airspeed limitations place the initial sizing threshold at 50 µm.