Alexandre, Anne (2025): Predicted soil water isotopes from West Africa (Benin and Senegal) using Craig and Gordon evaporation model and a mixing equation [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.986641 (DOI registration in progress), In: Alexandre, A (2025): Climate and triple oxygen isotope of precipitation, groundwater, soil water, plant water, and phytolith data from West Africa (Benin and Senegal) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.984133
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Published: 2025-11-24
Abstract:
Simple evaporation model applied to a layer of soil water defined as an isolated volume of water (cf Criss, 1999, Surma et al., 2015 and Voigt et al., 2021 for definition of the parameters). The isotope composition of the initial water considered is that of the main precipitation preceding the coring. Atmospheric relative humidity and air temperature considered are the diurnal averages (for the period from August 18 to August 24, 2019 at DA). Pure molecular diffusion (wind coefficient of 1) is assumed.
Related to:
Alexandre, Anne; Outrequin, Clément; Vallet-Coulomb, Christine; Peugeot, Christophe; Grippa, Manuela; Aleman, Julie C; Voigt, Claudia; Landais, Amaëlle; Mougin, Eric; Ndiaye, Ousmane; Sonzogni, Corinne; Yang, David Au; Mazur, Jean-Charles; Couapel, Martine; Ogée, Jérôme; Ouani, Theodore; Afouda, Simon; Wubda, Maxime; Soumaguel, Nogmana; Houngnon, Alfred; Tagesson, Torbern; Fensholt, Rasmus (2025): What Does the Triple Isotopic Composition of Oxygen in Precipitation, Groundwater, Soil Water, Plant Water, and Phytoliths Reveal About Current and Past Hydrological Cycles? Journal of Geophysical Research: Biogeosciences, 130(10), e2024JG008615, https://doi.org/10.1029/2024JG008615
References:
Criss, Robert E (1999): Nonequilibrium Fractionation and Isotopic Transport. In: Criss, RE, Principles of Stable Isotope Distribution, Oxford University Press, https://doi.org/10.1093/oso/9780195117752.003.0006
Surma, J; Assonov, Sergey; Bolourchi, M J; Staubwasser, Michael (2015): Triple oxygen isotope signatures in evaporated water bodies from the Sistan Oasis, Iran. Geophysical Research Letters, 42(20), 8456-8462, https://doi.org/10.1002/2015GL066475
Voigt, Claudia; Herwartz, Daniel; Dorador, Cristina; Staubwasser, Michael (2021): Triple oxygen isotope systematics of evaporation and mixing processes in a dynamic desert lake system. Hydrology and Earth System Sciences, 25(3), 1211-1228, https://doi.org/10.5194/hess-25-1211-2021
Funding:
Agence Nationale de la Recherche (ANR), grant/award no. ANR-17-CE01-0002: Past dynamic of continental atmospheric humidity and vegetation: new insights from the triple isotopic composition of oxygen (HUMI-17)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
61.7 kBytes