Air Masses Origin and Isotopic Tracers: A Study Case of the Oceanic and Mediterranean Rainfall Southwest of France
作者： Luc Lambs , Issam Moussa , Frederic Brunet
DOI: 10.3390/W5020617
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摘要: Aquifers recharge mainly by local rainfall, which depend on the air mass humidity and orographic lifting, causing rain. The stable isotopes of water molecule, i.e., oxygen-18 deuterium, are useful tracers to determine source origin. Moreover, calculation deuterium excess enables one differentiate between masses from Atlantic Ocean or Mediterranean Sea. A transect coast other going through city Toulouse have been made sample groundwater their isotopic characteristic. monthly rainfall sampling has also done over year, close Toulouse, see how d-excess values range season. discussion replaces these results in available data.
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