Stable water isotopes of precipitation and different surface waters in southern Africa, sampled from 2016 to 2021


Water samples of precipitation and different surface waters were collected between 2016 and 2021 in southern Africa using narrow-neck bottles of 300 ml volume. The bottles were stored in a refrigerator until measurements. The stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H) of the water samples were measured using a PICARRO L1102-i isotope analyzer (WS-CRDS). Calibration of the measurements was done with VSMOW, SLAP and GISP standards from the IAEA. A total of six replicate injections were performed for each sample and mean and standard deviations (1 sigma) were calculated, resulting in a reproducibility of the replicate measurements of generally better than 0.1 ‰ for oxygen and 0.5 ‰ for hydrogen. The aim of this data collection is to fill a gap in southern Africa, where isotopic data on precipitation and surface waters do not have sufficient spatial coverage and are mainly sampled before 2013. Regional studies of meteorology, hydrology, environmental geochemistry and paleoclimate may benefit from this dataset.

Metadata Access
Creator Geppert, Marielle; Hartmann, Kai; Riedel, Frank; Struck, Ulrich
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2022
Funding Reference German Science Foundation, 281420578
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 1715 data points
Discipline Earth System Research
Spatial Coverage (13.248W, -34.022S, 32.459E, 0.362N)
Temporal Coverage Begin 2016-08-29T00:00:00Z
Temporal Coverage End 2021-01-29T00:00:00Z