Articles | Volume 16, issue 3
https://doi.org/10.5194/amt-16-727-2023
https://doi.org/10.5194/amt-16-727-2023
Research article
 | 
09 Feb 2023
Research article |  | 09 Feb 2023

New Absolute Cavity Pyrgeometer equation by application of Kirchhoff's law and adding a convection term

Bruce W. Forgan, Julian Gröbner, and Ibrahim Reda

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Cited articles

Forgan, B. W. and Gröbner, J.: Data set and pseudo-code for publication https://doi.org/10.5194/amt-2022-250 (1.0), Zenodo [data set], https://doi.org/10.5281/zenodo.7605287, 2023. 
Gröbner, J.: A transfer standard radiometer for atmospheric longwave irradiance measurements, Metrologia, 49, 105–111, 2012. 
Gröbner, J.: Investigation of ACP96 at PMOD/WRC, Zenodo, https://doi.org/10.5281/zenodo.7047680, 2021. 
Gröbner, J. and Wacker, S.: Pyrgeometer calibration procedure at the WRC/PMOD-IRC, WMO, Instrument and Observing Report 120, 13 pp., 2012. 
Kondratyev, Y. A.: Radiation in the Atmosphere, Academic Press, International Physics Series, vol. 12, 912 pp., ISBN 13: 978-0124190504, 1969. 
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Short summary
This paper investigates the Absolute Cavity Pyrgeometer (ACP) and its use in measuring atmospheric terrestrial irradiances traceable to the standard system of units (SI). This work fits into the objective of the Expert Team on Radiation References, established by the World Meteorological Organization (WMO), to develop and validate instrumentation that can be used as reference instruments for terrestrial radiation measurements.
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