ESA Data Ontology: ESADO: CAS

Instruments > In Situ/Laboratory Instruments > Spectrometers/Radiometers > CAS

CAS

The Cloud and Aerosol Spectrometer (CAS), which measures smaller particles, relies on light-scattering rather than imaging techniques. Particles scatter light from an incident laser, and collecting optics guide the light scattered in the 4° to 12° range into a forward-sizing photodetector. This light is measured and used to infer particle size. Backscatter optics also measure light in the 168° to 176° range, which allows determination of the real component of a particle’s refractive index for spherical particles. (en)

2019-12-12 12:04:10.0 [tstevens] Insert Concept add broader relation (CAS [d1be0e72-acd4-4fae-90b2-2eba8b91861f,532243] - Spectrometers/Radiometers [ecd58f82-8f96-45e1-9547-dd4a02291bd9,518851]);
2019-12-12 12:05:30.0 [tstevens] insert AltLabel (id: null category: primary text: Cloud and Aerosol Spectrometer language code: en); insert Definition (id: null text: The Cloud and Aerosol Spectrometer (CAS), which measures smaller particles, relies on light-scattering rather than imaging techniques. Particles scatter light from an incident laser, and collecting optics guide the light scattered in the 4° to 12° range into a forward-sizing photodetector. This light is measured and used to infer particle size. Backscatter optics also measure light in the 168° to 176° range, which allows determination of the real component of a particle’s refractive index for spherical particles. language code: en);

https://gcmd.earthdata.nasa.gov/kms/concept/d1be0e72-acd4-4fae-90b2-2eba8b91861f

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