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Table 1 below lists the instrumentation that was deployed during SPECTRA 1. The range, accuracy and <br />resolution describe the instrument measurement sensitivities. A schematic of the instrumentation and <br />their location on the aircraft is shown in figure 2. <br />VARIABLE INSTRUMENT RANGE ACCURACY RESOLUTION FREQUENCY <br />Air temperature 0.038" DIA. -30°C to +50°C 0.05°C/0.3°C 0.01°C < 1 s TC <br />(reverse flow) Bead Thermistor incl DHC <br />Relative humidity Thermoset Polymer 0 to 100% RH 2% RH 0.1% RH 5 s TC <br />(reverse flow) RH Sensor @ 20°C <br />Barometric pressure MEMS Pressure Sensor 0 to 110000 Pa 100 Pa 10 Pa 20 Hz <br />u wind component Extended Kalman Filter 0.50 m/s 0.01 m/s 5 Hz <br />(+ North) (EKF)@ 75 m/s TAS <br />v wind component Extended Kalman Filter 0.50 m/s 0.01 m/s 5 Hz <br />(+ East) (EKF)@ 75 m/s TAS <br />w wind component Extended Kalman Filter 0.50 m/s 0.01 m/s 5 Hz <br />(+ Down) (EKF)@ 75 m/s TAS <br />PositionWAAS DGPS < 1 m 5 Hz <br />2 m (2) <br />(Latitude/Longitude) <br />Altitude WAAS DGPS -300 to 18000 m < 1 m 5 Hz <br />5 m (2) <br />Geometric Altitude King KRA 405 0 to 2000 ft 3% < 500 ft 0.48 ft (0.15 m) <br />Radar Altimeter 5% > 500 ft <br />MEMS IMU/GPS/EKF -60 to +60° 0.1° 0.01° 5 Hz <br />Roll Attitude () <br />MEMS IMU/GPS/EKF -60 to +60° 0.2° 0.01° 5 Hz <br />Pitch Attitude () <br />MEMS IMU/GPS/EKF 0 to 360° 0.1° 0.01° 5 Hz <br />Yaw Attitude()/ <br />Heading <br />MEMS Pressure Sensor -15 to +15° 0.03° 0.001°20 Hz <br />Angle of attack() <br />@ 150 m/s @ 150 m/s <br />MEMS Pressure Sensor -15 to +15° 0.03° 0.001°20 Hz <br />Side-slip() <br />@ 150 m/s @ 150 m/s <br />True Air Speed MEMS Pressure Sensor 0 to 150 m/s 0.1 m/s 0.01 m/s 20 Hz <br /> <br />Video record Sony DCR-DVD 201 <br />Logging, telemetry & ESD DTS (GPS) 1 Hz <br />event markers <br /> <br />Cloud droplet spectra DMT CDP 2 to 50 µm 1 to 2 µm, 30 1 Hz <br />bins <br />Cloud particle spectra DMT CIP 25 to 1550 µm 25 µm, 62 bins 1 Hz <br />Cloud particle image DMT CIP 25 to 1550 µm 25 µm <br />333 <br />Liquid water content DMT LWC-100 0 to 3 g/m 0.05 g/m 0.01 g/m 1 Hz <br />3 <br /> CDP calculated > 3 g/m 1 Hz <br /> <br />Aerosol spectrometer PMS PCASP SPP-200 0.1 to 3 µm 0.02 µm, 30 bins 1 Hz <br />Aerosol properties TAMU DMA/TDMA See text 1 Hz <br />CCN DMT CCN counter 0.5 to 10 µm 0.5 µm, 20 bins 1 Hz <br />0.1 to 1.2 % SS <br />Table 1: Summary of parameters and measuring devices used on the SOAR Cheyenne II. <br />14 <br />