Garcia-Moya Alejandro, Alonso-Hernández Carlos Manuel, Sánchez-Murillo Ricardo, Morera-Gómez Yasser, Sánchez-Llull Minerva, Díaz Rizo Oscar, Cuesta Santos Osvaldo, López Lee Rosemery, Brígido Flores Osvaldo, Ramos Viltre Enma Odalys, Ortega Lucia
Departamento de Estudios de la Contaminación Ambiental, Centro de Estudios Ambientales de Cienfuegos (CEAC), Road to Castillo de Jagua km 1,5 Ciudad Nuclear, 59350, Cienfuegos, Cuba.
International Atomic Energy Agency, Marine Environment Laboratories-Radioecology Laboratory (REL). 4a, Quai Antoine 1er, MC, 98000, Monaco.
Sci Data. 2024 Dec 19;11(1):1398. doi: 10.1038/s41597-024-04178-z.
The stable isotope composition of meteoric water has been widely used to understand hydrological processes worldwide. We present a unique dataset, with the isotopic composition (δO and δH) of meteoric waters, derived from a nationwide study in Cuba. It includes monthly composite and event-based precipitations, from January 2017 to December 2021 (N = 526 and N = 111 respectively). Monthly data showed minor seasonal trends (dry vs. rainy), with a notable influence of tropical cyclones. Event-based data demonstrated that precipitation associated with tropical cyclones exhibited lower isotopic compositions. The analysis of potential factors influencing the isotopic composition of precipitation showed a minor influence of the rainfall amount, but negligible influence of factors such are relative humidity, elevation, and air temperature. This data set can be used as a tool not only to understand hydrological processes at the country scale, but also to further improve and develop isotope-enabled modelling for assessing water balances and fluxes, understanding the impact of extreme events, and paleoreconstruction in the Intra-Americas Sea.
大气降水的稳定同位素组成已被广泛用于了解全球水文过程。我们展示了一个独特的数据集，其包含源自古巴全国性研究的大气降水的同位素组成（δO和δH）。它包括2017年1月至2021年12月的月度综合降水和基于事件的降水（分别为N = 526和N = 111）。月度数据显示出轻微的季节性趋势（旱季与雨季），热带气旋有显著影响。基于事件的数据表明，与热带气旋相关的降水表现出较低的同位素组成。对影响降水同位素组成的潜在因素的分析表明，降雨量影响较小，但相对湿度、海拔和气温等因素的影响可忽略不计。该数据集不仅可作为了解国家尺度水文过程的工具，还可用于进一步改进和开发基于同位素的模型，以评估水平衡和通量、了解极端事件的影响以及美洲内海的古重建。
