Fig. 2

Spatial distribution of the measurement locations with stream water isotope data available in CAMELS-CH-Chem encompassing (a) ISOT data and (b) CH-IRP. Their respective catchment delineations are shown in background for both datasets. Moreover, for CH-IRP, it is worth noting that stations Biberbrugg (2604) and Einsiedeln (2609), both depicted as red dots, are located very close but in two different rivers (Biber and Alp). Therefore, due to scale reasons this figure gives the impression of having only 10 stations.