anonymous 16352 Ion concentrations of groundwater on Gili Air and Trawangan (Indonesia) in June 2020 The chemical analysis of major and minor ions of groundwater from dug- and drill wells (8 Wells in Gili Air, 5 Wells in Gili Trawangan, and Rain) is presented. The data was collected during the fieldwork for a Master Thesis (Hydrogeology, University Bremen) in cooperation with the Leibniz Centre for Tropical Marine Research in June 2020. 16360 https://doi.org/10.1594/PANGAEA.925727 2020-12-14T09:38:51+0000 2020 18543 19038 19037 19036 19035 19034 19033 19032 19031 19030 19029 19028 19027 19026 19025 19024 19023 16375 Tschaikowski, Jarrid; Putra, D (2020): Ion concentrations of groundwater on Gili Air and Trawangan (Indonesia) in June 2020 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.925727 15120