Davos Instruments in Japan

Mt. Fuji, view from Tsukuba

Davos Instruments is currently participating in the fifth WMO Regional Pyrheliometer Comparison of WMO RA-II, jointly held with RA-V on Mount Tsukuba in Japan, an exciting event having approximately 20 absolute radiometers and many experts here. It is a great pleasure to be here and enjoy valuable discussions, excellent infrastructure and delicious meals.

New Article on Adaptive Diffraction Corrections

Proceedings from the WMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation
(TECO-2022) are now publicly available here. Markus Suter (Davos Instruments) and Wolfgang Finsterle (PMOD/WRC) have contributed their work: Adaptive diffraction corrections in solar radiometry, a prerequisite for the ISO 9060:2018 AA class.

An HF-Radiometer in active mode

At the IPC-XIII, Davos Instruments has been successfully operating a Hickey-Frieden (HF) radiometer from Eppley Laboratory Inc. in active mode, using a slightly modified control unit Linard.

It has been found that the HF radiometer is very well suitable for active operation. While the HF-radiometer is traditionally operated in the passive mode, it has all the necessary features needed for active mode operation.

First results have been presented in the symposium of the IPC-XIII, a preprint of the proceedings-article is available here.