Geppert, Marielle; Hartmann, Kai; Riedel, Frank; Struck, Ulrich (2022): Stable water isotopes of precipitation and different surface waters in southern Africa, sampled from 2016 to 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.944811
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Abstract:
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.
Supplement to:
Geppert, Marielle; Hartmann, Kai; Kirchner, Ingo; Pfahl, Stephan; Struck, Ulrich; Riedel, Frank (2022): Precipitation Over Southern Africa: Moisture Sources and Isotopic Composition. Journal of Geophysical Research: Atmospheres, 127(21), https://doi.org/10.1029/2022JD037005
Funding:
German Science Foundation (DFG), grant/award no. 281420578: Rekonstruktion eines Paläo-Seesystems am UNESCO Weltkulturerbe Tsodilo Hills, Kalahari, Botsuana: MIS3 und MIS2 Ökosystemdynamik und Klima-, Witterungs- und Umweltvariation, abgeleitet von Sedimentationsprozessen und Bioindikatoren
Coverage:
Median Latitude: -25.533349 * Median Longitude: 24.180887 * South-bound Latitude: -34.021670 * West-bound Longitude: 13.247500 * North-bound Latitude: 0.361670 * East-bound Longitude: 32.458750
Date/Time Start: 2016-08-29T00:00:00 * Date/Time End: 2021-01-29T00:00:00
Event(s):
WaterSA_18K1 (18K1) * Latitude: -27.463890 * Longitude: 23.436390 * Date/Time: 2018-01-04T00:00:00 * Method/Device: Water sample (WS) * Comment: Spring water sample
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Geppert, Marielle | |||
| 2 | Sample ID | Sample ID | Geppert, Marielle | |||
| 3 | LATITUDE | Latitude | Geppert, Marielle | Geocode | ||
| 4 | LONGITUDE | Longitude | Geppert, Marielle | Geocode | ||
| 5 | DATE/TIME | Date/Time | Geppert, Marielle | Geocode | ||
| 6 | Sample type | Samp type | Geppert, Marielle | |||
| 7 | Sample comment | Sample comment | Geppert, Marielle | Times mentioned are local times, i.e. UTC+03 for sample UW5, otherwise UTC+02. | ||
| 8 | δ18O, water | δ18O H2O | ‰ SMOW | Geppert, Marielle | Picarro L1102-i instrument | |
| 9 | δ Deuterium, water | δD H2O | ‰ SMOW | Geppert, Marielle | Picarro L1102-i instrument | |
| 10 | δ18O, water, standard deviation | δ18O H2O std dev | ± | Geppert, Marielle | ||
| 11 | δ Deuterium, water, standard deviation | δD H2O std dev | ± | Geppert, Marielle |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1715 data points