Robuta

https://web.archive.org/all/20050904224133/http:/weather.noaa.gov/radar/latest/DS.p19r0/si.tjua.shtml
national weather serviceradar imageshortrangebase
https://www.nist.gov/publications/extraction-reflectivity-microwave-blackbody-target-using-free-space-measuements
We report on the characterization of blackbody target reflections as part of the recent progress on the development of brightness temperature standards for micr
free spaceextractionreflectivitymicrowaveblackbody
https://uwaterloo.ca/molecular-beam-epitaxy/facilities/epi-growth-and-monitoring/reflectivity-and-reflectance-corrected-pyrometry
Reflectance is the fraction of incident electromagnetic power that is reflected at an interface.
molecular beam epitaxyresearch groupreflectivityreflectancepyrometry
https://www.nist.gov/publications/oblique-incidence-reflectivity-microwave-radiometer-calibration-targets-g-band
High emissivity temperature-controlled microwave blackbodies, or calibration targets, are often used as brightness temperature reference sources for radiometer
microwave radiometerobliqueincidencereflectivitycalibration