irsiirskyimage (a1)

Dataset · Fri May 23 04:00:00 EDT 2014

DOI:https://doi.org/10.5439/1972912· OSTI ID:1972912

Flynn, Donna ^[1]; Morris, Victor

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1. ORNL

The infrared sky imager (IRSI) measures cloud fraction and precipitable water vapor. The IRSI captures hemispheric sky images and provide time series retrievals of fractional sky cover during both day and night. The instrument provides diurnal sky imagery in the mid-infrared atmospheric window and imagery during daylight hours in the visible wavelengths for cloud retrievals. The software automatically identifies cloudy and clear regions and calculates fractional sky cover.

• Research Organization: Atmospheric Radiation Measurement (ARM) Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); ARM Data Center, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• 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: 1972912
• Availability: ORNL
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
Atmospheric moisture
Cloud base height
Cloud fraction
Longwave narrowband brightness temperature
Precipitable water