Reference: Aemisegger, F., Dütsch, M., Rösch, M., and Villiger, L., Calibrated stable water vapour isotope measurements on board the ATR-42 during EUREC4A [data set], Aeris, doi:XXX, 2021. Contact: franziska.aemisegger@env.ethz.ch, leonie.villiger@env.ethz.ch Files: one nc file per flight, one yaml file per flight, 4 quicklooks per flight, .zip with postprocessing info