Cloud, Aerosol, and Precipitation Spectrometer

Status

Operated By
PI

This multipurpose particle spectrometer includes three Droplet Measurement Technologies instruments plus temperature and relative humidity sensors that are packaged into a single, integrated measurement system. The CAPS provides the following data:

- Aerosol particle and cloud hydrometeor size distributions from 0.51 to 50 µm

- Precipitation size distributions from 25 µm to 1550 µm, or 15-930 um with optional 15-micron resolution

- Particle optical properties (refractive index)

- Particle shape assessments (discrimination between water and ice for probes with depolarization feature)

- Liquid water content from 0.01 to 3 g/m3

- Aircraft velocity

- Atmospheric temperature and pressure

This instrument replaces the older PMS/PMI FSSP-100, FSSP-300, 2D-C, 2D-P and KLWC and can be used in many applications, including weather modification, aircraft icing, hurricane and storm research, and agricultural and industrial spray characterization.

Instrument Type
Spectrometer (in situ)
Measurements
Aerosol,
Particle size distribution,
Cloud Liquid Water Content
Aircraft
DC-8 - AFRC
Point(s) of Contact
Andrew Heymsfield
(POC; PI)

 

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