Project #2001-161 EPIC 2001
Eastern Pacific Investigation of Climate Processes in the Coupled Ocean-Atmosphere System
Principal Investigators: David Raymond, et al.
NSF/NCAR EC-130Q Hercules (N130AR)
Summary of Calibration Factors
| Pre-Calibration - 1/10/01 | ||||
|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 |
| Dynamic Pressure-Fuselage (mbar) | QCF | 86.750 | 8.622 | .0012 |
| Dynamic Pressure-Radome (mbar) | QCR | 85.574 | 8.626 | -.0031 |
| Total Temperature-Radome Right (C) | TTRR | -1.915 | 5.978 | .0001 |
| Total Temperature-Radome Left (C) | TTRL | -3.050 | 6.023 | .0035 |
| Total Temperature-Heated Wing (C) | TTWH | -0.476 | 6.146 | -.0064 |
| Remote Surface Temp. Bot. (C) | RSTB | -52.720 | 10.111 | .0000 |
| Remote Surface Temp. Bot. (C) | RSTB1 | -53.450 | 10.238 | -.0037 |
| Remote Sky Temp. Top. (C) | RSTT | |||
| Downward Shortwave Irrad. (W/M2) | SWT | 3055.200 | 301.976 | -.4761 |
| Upward Shortwave Irrad. (W/M2) | SWB | 3597.500 | 453.305 | 9.8773 |
| Downward Infrared Irrad. (W/M2) | IRT | 257.000 | 139.453 | -.0619 |
| Upward Infrared Irrad. (W/M2) | IRB | 308.700 | 136.655 | -.2717 |
| Downward Ultraviolet Irrad. (W/M2) | UVT | 36.750 | 3.702 | .0008 |
| Upward Ultraviolet Irrad. (W/M2) | UVB | 37.200 | 3.703 | -.0015 |
| Dew Point Temperature-Bottom (C) | DPB | -1.000 | 10.003 | -.0024 |
| Dew Point Temperature-Top (C) | DPT | -1.260 | 9.991 | -.0014 |
| Vertical Press. Diff. Radome (mbar) | ADIFR | 0.172 | 5.150 | -.0050 |
| Horizontal Press. Diff. Radome(mbar) | BDIFR | -0.065 | 5.131 | .0010 |
| Cabin Pressure (mbar) | PCAB | -2.430 | 109.344 | -.0797 |
| CN Inlet Pressure (mbar) | PCN | 541.200 | 54.195 | -.0048 |
| CN Flow Rate (slpm) | FCN | 0.022 | 0.198 | .0000 |
| Post-Calibration - 5/01/01 | ||||
|---|---|---|---|---|
| Variable (Units) | Variable Name | C1 | C2 | C3 |
| Dynamic Pressure-Fuselage (mbar) | QCF | 86.836 | 8.629 | -.0010 |
| Dynamic Pressure-Radome (mbar) | QCR | 83.488 | 8.713 | .2199 |
| Total Temperature-Radome Right (C) | TTRR+ | -0.623 | 5.999 | -.0034 |
| Total Temperature-Radome Left (C) | TTRL+ | -0.678 | 6.065 | -.0032 |
| Total Temperature:Heated- Wing (C) | TTWH | -0.497 | 6.167 | -.0061 |
| Remote Surface Temp: Bot. (C) | RSTB | -52.990 | 10.648 | -.0314 |
| Remote Surface Temp: Bot. (C) | RSTB1 | -52.221 | 10.500 | -.0248 |
| Remote Sky Temp. Top. (C) | RSTT | |||
| Downward Shortwave Irrad. (W/M2) | SWT | 3086.400 | 316.714 | .8373 |
| Upward Shortwave Irrad. (W/M2) | SWB | 3106.700 | 311.893 | .0735 |
| Downward Infrared Irrad. (W/M2) | IRT | 261.970 | 139.453 | -.0619 |
| Upward Infrared Irrad. (W/M2) | IRB | 309.200 | 141.385 | .0625 |
| Downward Ultraviolet Irrad. (W/M2) | UVT | 36.800 | 3.699 | .0005 |
| Upward Ultraviolet Irrad. (W/M2) | UVB | 30.900 | 3.090 | .0003 |
| Dew Point Temperature-Bottom (C) | DPB | 0.027 | 10.054 | -.0004 |
| Dew Point Temperature-Top (C) | DPT | -0.390 | 9.959 | .0832 |
| Vertical Press. Diff. Radome (mbar) | ADIFR | 0.076 | 5.196 | -.0010 |
| Horizontal Press. Diff. Radome(mbar) | BDIFR | -0.069 | 5.200 | .0013 |
| Cabin Pressure (mbar) | PCAB | -3.135 | 109.377 | -.0817 |
| CN Inlet Pressure (mbar) | PCN | 541.200 | 54.245 | -.0069 |
| + 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 Manuevers: 08/22/2001, 10/06/2001
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 one test flight and one of the research flights: TF03, RF17, respectively. In each case the variations observed fell within acceptable limits.
PMS - 1-D Probe Bin Sizes
The SPP-100, SPP-300, SPP-200 and 260X 1-D probes were used on the project. The 260X probe provides measurements for 64 bins of 10 µm each. Airspeed limitations place the initial sizing threshold at 50 µm.
The minimum droplet size (micrometers) for each sampling bin is listed below along with the upper limit (as the last bin).
| PMS-1D Probe Bin Diameter (µm) | |||
|---|---|---|---|
| bin | SPP-100 (Range 0) | SPP-300 | SPP-200 |
| #1 | 1.00 | 0.20 | 0.088 |
| #2 | 2.15 | 0.266 | 0.10 |
| #3 | 3.30 | 0.333 | 0.108 |
| #4 | 4.45 | 0.40 | 0.118 |
| #5 | 5.60 | 0.465 | 0.13 |
| #6 | 6.75 | 0.532 | 0.147 |
| #7 | 7.90 | 0.60 | 0.157 |
| #8 | 9.06 | 0.665 | 0.167 |
| #9 | 10.22 | 0.731 | 0.177 |
| #10 | 11.38 | 0.797 | 0.187 |
| #11 | 12.54 | 0.864 | 0.197 |
| #12 | 13.70 | 0.93 | 0.206 |
| #13 | 14.86 | 1.95 | 0.216 |
| #14 | 16.02 | 2.88 | 0.284 |
| #15 | 17.18 | 3.85 | 0.353 |
| #16 | 18.34 | 4.83 | 0.431 |
| #17 | 19.50 | 5.80 | 0.50 |
| #18 | 20.66 | 6.78 | 0.569 |
| #19 | 21.82 | 7.76 | 0.755 |
| #20 | 22.98 | 8.74 | 0.951 |
| #21 | 24.14 | 9.72 | 1.15 |
| #22 | 25.30 | 10.70 | 1.34 |
| #23 | 26.46 | 11.68 | 1.54 |
| #24 | 27.62 | 12.66 | 1.74 |
| #25 | 28.78 | 13.64 | 1.93 |
| #26 | 29.94 | 14.62 | 2.13 |
| #27 | 31.10 | 15.60 | 2.32 |
| #28 | 32.26 | 16.58 | 2.52 |
| #29 | 33.42 | 17.56 | 2.72 |
| #30 | 34.58 | 18.84 | 2.91 |
| #31 | 35.74 | 19.52 | 3.11 |
| #32 | 36.90 | ||
| #33 | 38.06 | ||
| #34 | 39.22 | ||
| #35 | 40.38 | ||
| #36 | 41.54 | ||
| #37 | 42.70 | ||
| #38 | 43.86 | ||
| #39 | 45.02 | ||
| #40 | 46.18 | ||
| #41 | 47.34 | ||