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CIMEL Sun Photometer in Action

CSPHOT

Sunphotometer

Baseline Instrument, External Instrument, Guest

The Cimel sunphotometer (CSPHOT) is a multi-channel, automatic sun-and-sky scanning radiometer that measures the direct solar irradiance and sky radiance at the Earth’s surface. It takes measurements at predetermined discrete wavelengths in the visible and near-infrared parts of the spectrum to determine atmospheric transmission and scattering properties. The CSPHOT only operates during daylight (sun above horizon).

Primary Measurements

Locations

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Atmospheric Radiation Measurement (ARM) | Reviewed October 2024