Calibration certificate for Kipp & Zonen CNR4 net radiometer, serial number 121132, certificate number 014412121132, 23 September 2016

Historical calibration certificate issued by Kipp & Zonen for CNR4 net radiometer serial number 121132. The certificate number is 014412121132. According to records maintained by the depositor, the instrument was subsequently operated at Chilbolton Observatory as part of the Chilbolton Facility for Atmospheric and Radio Research (CFARR). At the time, CFARR was operated by the Science and Technology Facilities Council (STFC), managed by the National Centre for Atmospheric Science (NCAS), and funded by the Natural Environment Research Council (NERC). The certificate was issued on 23 September 2016 and deposited retrospectively in 2026 to support the provenance of associated observations archived by the Centre for Environmental Data Analysis (CEDA). This record is the first in a chronological series of calibration certificates for Kipp & Zonen CNR4 net radiometer serial number 121132; links to the adjacent calibration records are provided under Related works.