A trip to the Swiss village where the world calibrates its solar monitoring instruments

Pyrheliometer in front of a mountain area

Measuring the energy of the sun precisely is not as easy as tracking distances or weight. To set an international standard for solar monitoring instruments radiometers, the World Radiation Centre in Davos, Switzerland, holds comparison events that result in the World Radiometric Reference. One of the participants was Dr. Joop Mes, Senior Scientist at OTT HydroMet. In this short interview, he explains what the IPC is and why it is so important.