Results of Recent and Historical Comparisons Between Absolute Cavity Pyrgeometer (ACP), InfraRed Integrating Sphere (IRIS)

Ibrahim Reda, Afshin Andreas, Peter Gotseff, Manajit Sengupta, Julian Groebner, Stefan Wacker, Christian Thomann

Research output: NRELPresentation

Abstract

Results of seven comparisons between ACPs and IRISs. Difference between the longwave irradiance measured by the ACPs and IRISs versus the irradiance measured by the WISG. The longwave irradiance measured by the ACPs, IRISs, and AERI versus the irradiance measured by the WISG. Recommendations to establish the world reference for measuring the atmospheric longwave irradiance with traceability to the International System of Units (SI).
Original languageAmerican English
Number of pages22
StatePublished - 2020

Publication series

NamePresented at the 16th BSRN Scientific Review and Workshop, 29 June - 3 July 2020, Bologna, Italy

NREL Publication Number

  • NREL/PR-1900-75896

Keywords

  • Absolute Cavity Pyrgeometer
  • ACP
  • Infrared Intigrating Sphere
  • International System of Units
  • IRIS
  • longwave irradiance
  • SI

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