NWB Sensors Infrared Cloud Imager Data Products from SGP

Dataset · Thu Nov 13 04:00:00 EST 2025

DOI:https://doi.org/10.5439/3001561· OSTI ID:3001561

Pust, Nathan; Beard, Austin; Nugent, Paul; McCann, Cooper

NWB Sensors is a company which has developed a commercially available Infrared Cloud Imager (ICI). For more information, consult the company's webpage, https://www.nwbsensors.com/infrared-cloud-imager. To validate the radiometric accuracy of the ICI, NWB Sensors deployed it to the ARM SGP User Facility in 2023. The primary motivation of this deployment was to perform an intercomparison between the ICI and the Atmospheric Emitted Radiance Interferometer (AERI). The AERI spectral radiance data product can be integrated across the response function of the ICI and directly compared to the zenith radiance observed by the ICI. In addition, the ICI uses proprietary models of the downwelling clear-sky radiance in its cloud processing algorithms. They are based on surface meteorology and precipitable water vapor (PWV). These models were validated by comparing their predicted radiances to those derived from radiative transfer models of the ARM radiosondes. Finally, PWV observations derived from the ICI's onboard GNSS-based PWV retrieval system were compared against those from the microwave radiometer. This dataset contains the ICI radiance and cloud data products.

• Research Organization: Atmospheric Radiation Measurement User Facility
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• Contributing Organization: PNNL, BNL, ANL, ORNL
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 3001561
• Country of Publication: United States
• Language: English

Related Subjects

Atmosphere
Full-sky cloud mask
Full-sky cloud probability
Full-sky downwelling infrared radiance
Full-sky downwelling residual infrared radiance
Infrared Cloud Imager
Stratosphere
Troposphere