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Instrument: CAPS : Cloud, Aerosol, Precipitation Spectrometer
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The Cloud, Aerosol, Precipitation, Spectrometer (CAPS) measures the size and concentration of aerosol and cloud particles over a size range from 0.0003 mm to 1.6 mm. This aircraft-mounted sensor also measures the liquid water content of cloud droplets, the air temperature and pressure, and the airspeed. CAPS was developed specifically for oper tion on the Navy?s Pelican and Twin Otter aircrafts that have limited space and weight carrying capacity, but needed to measure the extended range of particles that the CAPS provides. The CAPS replaces a suite of five instruments that was previously needed to cover this environmentally important range of sizes.

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