The Differential Aerosol Sizing and Hygroscopicity Spectrometer Probe (DASH-SP) is an in situ airborne spectrometer developed by Brechtel Manufacturing, Inc. It uses differential mobility analysis (DMA) combined with multiple humidification and sizing modules to measure aerosol optical size and hygroscopic growth factors. The probe can deliver faster measurement resolution compared to other hygroscopicity techniques. DASH-SP measures aerosol particles in the size range of 0.1–1.0 μm and operates at a wavelength of 532 nm. Its typical sampling rate is 1 Hz.
Instrument Details
- Spectrometer/Radiometer
- Earth Science > Atmosphere > AerosolsEarth Science > Atmosphere > Aerosols > Aerosol Particle Properties
- Troposphere
- 1 Hz
- Point
- 564 THz
- Currently unavailble
Armin Sorooshian
Armin Sorooshian
Brechtel Manufacturing Inc.
Office of Naval Research
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