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/cloud infrared temperature

Ascension Island, South Atlantic Ocean; Mobile Facility (LASIC)

• Latitude: -7.96696
• Longitude: -14.34981
• Publication Date: 2016-04-27
• Start Date: 2016-04-27
• End Date: 2017-11-01
• Last Updated: 2017-11-14

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. 2016, updated hourly. Infrared Thermometer (IRT). 2016-04-27 to 2017-11-01, ARM Mobile Facility (ASI) Ascension Island, South Atlantic Ocean; AMF1 (M1). Compiled by V. Morris and J. Howie. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025202.