irt

The infrared thermometer (IRT) is a ground-based radiation pyrometer that measures the equivalent blackbody brightness temperature of the scene in its field of view. The downwelling version has a narrow field of view for measuring sky temperature and detecting clouds. The upwelling version has a wide field of view for measuring the narrowband radiating temperature of the ground surface.

Sky infrared temperature

Tropical Western Pacific

• Latitude: -0.521
• Longitude: 166.916
• Publication Date: 2012-05-29
• Start Date: 2012-05-29
• End Date: 2013-09-09
• Last Updated: 2013-09-25

https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#irt

Victor Morris

Pacific Northwest National Laboratory

Joshua Howie

Pacific Northwest National Laboratory

http://dx.doi.org/10.5439/1025202
Atmospheric Radiation Measurement (ARM) user facility. 2012, updated hourly. Infrared Thermometer (IRT). 2012-05-29 to 2013-09-09, Tropical Western Pacific (TWP) Central Facility, Nauru Island (C2). Compiled by V. Morris and J. Howie. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025202.