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Project # 2007-114 PASE

Pacific Atmospheric Sulfur Experiment

Principal Investigator(s):  Alan Bandy, et al.

NSF/NCAR C-130Q Hercules (N130AR)

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Summary of Calibration Factors


Pre-Calibration - 7/11/2007
Variable (Units) Variable Name C1 C2 C3
Dynamic Pressure, Fuselage Left (hPa)QCF0.54017.222-.0039
Dynamic Pressure, Radome (hPa)QCR-1.43717.287-.0055
Dynamic Pressure, Fuselage Right (hPa)QCFR-0.48213.810-.0041
Total Temperature, Radome Right (deg_C)TTRR-65.17925.377-.2088
Total Temperature, Radome Left (deg_C)TTRL-63.98425.473-.2302
Total Temperature, Heated Wing (deg_C)TTWH+-65.40026.772-.3287
Remote Surface Temp., Bottom (deg_C)RSTB-64.91011.823.0023
Remote Surface Temp., Bottom (deg_C)RSTB1-67.02912.248-.0200
Remote Surface Temp., Top (deg_C)RSTT-58.24210.621.0458
Downward Shortwave Irradiance (W/m2)SWT+-2.8671078.110-15.832
Upward Shortwave Irradiance (W/m2)SWB+-0.3081068.480-.0766
Downward Infrared Irradiance (W/m2)IRT-1112.8102780.360-55.004
Upward Infrared Irradiance (W/m2)IRB-1055.5002571.340122.391
Downward Ultraviolet Irraiance. (W/m2)UVT+0.06030.002-.0021
Upward Ultraviolet Irradiance (W/m2)UVB+0.03015.163.0039
Vertical Differential Pressure, Radome (hPa)ADIFR-0.1976.926.0048
Horizontal Differential Pressure, Radome (hPa)BDIFR-0.2625.139.0001
Cabin Pressure (hPa)PCAB-3.000108.882-.0431
CN Inlet Pressure (hPa)PCN-3.550108.156-.0149
CN Flow Rate (slpm)FCN0.0000.413.0000
IR Dome Temperature, Top (deg_C)DTT47.690-15.222.6630
IR Dome Temperature, Bottom (deg_C)DTB47.450-15.406.6819
IR Sink Temperature, Top (deg_C)STT47.572-15.312.6724
IR Sink Temperature, Bottom (deg_C)STB47.520-15.371.6772
+   Corrected for systematic offset

Post Calibration - 9/17/2007
Variable (Units) Variable Name C1 C2 C3
Dynamic Pressure, Fuselage L. (hPa)QCF0.18917.150-.0018
Dynamic Pressure, Radome (hPa)QCR-1.86017.236-.0064
Dynamic Pressure, Fuselage R. (hPa)QCFR-0.93213.766-.0048
Total Temperature, Radome Right (deg_C)TTRR-65.30325.390-.2089
Total Temperature, Radome Left (deg_C)TTRL-64.19525.392-.2295
Total Temperature, Heated Wing (deg_C)TTWH-65.40026.772-.3287
Remote Surface Temp., Bot. (deg_C)RSTB-51.1999.967.0019
Remote Surface Temp., Bot. (deg_C)RSTB1-54.55410.567-.0173
Remote Surface Temp., Top. (deg_C)RSTT-52.2689.853.0425
Downward Shortwave Irradiance (W/m2)SWT-4.3891051.177-15.445
Upward Shortwave Irradiance (W/m2)SWB-1.7171067.560-.0765
Downward Infrared Irradiance (W/m2)IRT-1106.1162776.996-54.937
Upward Infrared Irradiance (W/m2)IRB-1054.1622569.849122.320
Downward Ultraviolet Irradiance (W/m2)UVT0.00629.990-.0021
Upward Ultraviolet Irradiance (W/m2)UVB0.02015.157.0039
Vertical Differential Pressure, Radome (hPa)ADIFR-0.1976.926.0048
Horizontal Differential Pressure, Radome (hPa)BDIFR-0.2625.139.0001
Cabin Pressure (hPa)PCAB-2.739108.882-.0431
CN Inlet Pressure (hPa)PCN-3.550108.156-.0149
CN Flow Rate (slpm)FCN0.0000.413.0000
IR Dome Temperature, Top (deg_C)DTT46.587-15.307.6667
IR Dome Temperature, Bottom (deg_C)DTB46.293-15.461.6844
IR Sink Temperature, Top (deg_C)STT46.429-15.392.6759
IR Sink Temperature, Bottom (deg_C)STB46.492-15.491.6825

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 on one test flight and one research flight:  TF02 and RF10 respectively.  In each case the variations observed fell within acceptable limits.


PMS - 1-D Probe Bin Sizes

The SPP-100, SPP-200, SPP-300 and 260X 1-D probes were used on the project.   The minimum droplet size (µm) for each sampling bin are listed below.

PMS-1D Probe Bin Diameter (µm)
bin SPP-100 (Range 0) SPP-200 SPP-300
#10.900.0250.25
#22.400.0670.40
#34.100.1080.545
#45.600.150.69
#57.100.1920.84
#68.600.2330.99
#710.250.2751.14
#811.900.3171.28
#913.400.3581.43
#1015.000.401.58
#1116.500.4421.73
#1218.100.4831.875
#1319.800.5253.08
#1421.400.6244.29
#1522.900.7825.50
#1624.400.946.71
#1725.751.107.92
#1827.001.259.125
#1928.251.4110.33
#2029.501.5911.54
#2130.751.7312.75
#2232.001.8813.96
#2333.102.0415.17
#2434.502.2016.38
#2535.602.3617.58
#2636.902.5118.79
#2738.102.6720.00
#2839.402.8321.27
#2940.602.9922.42
#3041.903.1423.62
#3143.103.3024.83

The 260X probe provides measurements for 64 bins of 10 µm each.  Airspeed limitations place the initial sizing threshold at 50 µm.


Last update: Tue Nov 20 23:35:12 GMT 2007