Hints for using the WinterCZ app and the CCP method in the ITINERIS CZ VRE for winter CO2 Fluxes calculations.

This report provides a synthesis regarding the procedures used to calculate winter CO2 fluxes by using as dataset the measurements acquired by the sensors array installed at Ny Ålesund, Svalbard (“CZO@Bayelva”) in the framework of the PRA Winter-CZ Project. The report contains the details regarding the software application developed to automatically download and merge data for a specific period and process the data with specific CO2 fluxes calculations that considers a mean value of snow density and the diƯusivity of the CO2 in the snow. Furthermore, details one the CCP method implemented in the ITINERIS CZ VRE are provided in this report.