Instrument : Infrared Thermometer (IRT)
Instrument Categories
Radiometric, Surface/Subsurface Properties
Picture of the Infrared Thermometer (IRT)
General Overview
The Infrared Thermometer (IRT) is a ground-based radiation pyrometer that provides measurements of 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 for detecting clouds. The upwelling version has a wide field of view for measuring the narrowband radiating temperature of the ground surface.
Output Datastreams
- irt : Infrared Thermometer: Sky brightness temperature
- irt10m : Infrared Thermometer: Ground surface temperature averaged 60-sec at 10-meter height
- irt200ms : Infrared Thermometer: Sky brightness temperature, 5-Hz instantaneous
- irt25m : Infrared Thermometer: Ground surface temperature, averaged 60-second at 25-meter height
- irt2s : Infrared Thermometer: Sky brightness temperature, instantaneous 2-second
Primary Measurements
The following measurements are those considered scientifically relevant.
- Longwave broadband brightness temperature
- Longwave broadband upwelling irradiance
- Surface skin temperature
Locations
- North Slope Alaska (NSA)
- Central Facility, Atqasuk AK (C2)
- Central Facility, Barrow AK (C1)
- Southern Great Plains (SGP)
- Anthony, KS (E31)
- Ashton, KS (E9)
- Byron, OK (E11)
- Central Facility, Lamont, OK (C1)
- Coldwater, KS (E8)
- Cordell, OK (E22)
- Cyril, OK (E24)
- Earlsboro, OK (E27)
- El Reno, OK (E19)
- Elk Falls, KS (E7)
- Halstead, KS (E5)
- Hillsboro, KS (Extended) (E2)
- Lamont, OK (Extended) (E13)
- Larned, KS (E1)
- LeRoy, KS (E3)
- Maple City, KS (E34)
- Marshall, OK (E36)
- Medford, OK (E32)
- Meeker, OK (Extended) (E20)
- Morris, OK (Extended) (E18)
- Newkirk, OK (E33)
- Okmulgee, OK (E21)
- Omega, OK (E38)
- Pawhuska, OK (E12)
- Plevna, KS (E4)
- Ringwood, OK (E15)
- Towanda, KS (E6)
- Tryon, OK (E35)
- Tyro, KS (E10)
- Vici, OK (Extended) (E16)
- Waukomis, OK (E37)
- Tropical Western Pacific (TWP)
- Central Facility, Darwin, Australia (C3)
- Central Facility, Manus I., PNG (C1)
- Central Facility, Nauru Island (C2)
- ARM Mobile Facility (FKB)
- Black Forest, Germany (M1)
- ARM Mobile Facility (GRW)
- Graciosa Island, Azores, Portugal (M1)
- ARM Mobile Facility (NIM)
- Niamey, Niger (M1)
- ARM Mobile Facility (PVC)
- Highland Center, Cape Cod MA; AMF 1 (M1)
- ARM Mobile Facility (PYE)
- Point Reyes, CA (M1)
Contact(s)
Victor Morris
(509) 372-6144
victor.morris@pnnl.gov
