Airborne Instrumentation

State Variables and Telemetry

Sensors for measuring temperature, static and dynamic pressure, and dewpoint

GPS system for determining position and ground speed, and for estimating winds


Sample Inlet for Aerosol and Chemistry (picture)

Condensation Nuclei (CN or CNC) Counter - TSI 3010 and 3760 measures concentrations of aerosols roughly 0.01 - 1.0 mm (picture)

Cloud Condensation Nuclei (CCN) Counter - University of Wyoming model - measures concentration of aerosols activated as cloud droplets at specified supersaturations (picture)

Three Stage Cascade Impactor - Arizona State University – substates analyzed using transmission electrom microscopy (TEM) and scanning electron microscopy (SEM) for details inspection of chemical composition of aerosol (2002 only).

Cloud Physics

Forward Scattering Spectrometer Probe (FSSP) - measures concentrations and sizes of cloud droplets between 2 and 47 µm diameter (this probe has modified electronics and is sometimes referred to as SPP) (picture)

2D-C Optical Array Imaging Probe - detects cloud and precipitation particles between 25 to 800 µm diameter

2D-P Optical Array Imaging Probe - detects cloud and precipitation particles between 0.2 and 6.4 mm diameter (picture)

High Volume Precipitation Spectrometer (HVPS) - detects precipitation particles 0.2 - 51 mm diameter (only in Winter 2001)

University of Witwatersrand "Streaker" Sampler - collects aerosol particles on filters for post-analysis in a laboratory setting (only in 2001 winter)

King Probe - cloud liquid water content (LWC) sensor (picture)


Sulfur Dioxide (SO2) Analyzer - TECO 43C TL - range: 0-500 ppb

Ozone (O3) Analyzer - Dasibi/TECO 48C TL - range: 0-500 ppb

Oxides of Nitrogen (NO/NO2/NOx) Analyzer - TECO 42C TL - range: 0-200 ppb

Chemistry Instrumentation Rack (picture)


SEA data recording system (picture)

WMI Aircraft Tracking Program

TITAN/CIDD Radar Objective Analysis Tools

Cloud seeding racks for 24 hygroscopic flares (picture)