Contenido en cloruros y en isótopos estables (18o y D) de las precipitaciones en un área montañosa (Alto Guadalquivir, provincia de Jaén).
- Autores: José Benavente Herrera, M.C. Hidalgo Estévez, A. Izquierdo del Arco, K. El Mabrouki, J.L Rubio Campos
- Localización: Geogaceta, ISSN 0213-683X, Nº. 36, 2004, págs. 111-114
- Idioma: español
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Resumen
Precipitation water has been sampled from October 2002 to March 2003 in a number of stations located in a mountainous area (Guadalquivir headwaters, Jaen province, S. Spain: from 400 m to 2000 m of altitude) in order to quantify chloride, deuterium and oxygen 18 contents. The obtained values range approximately between 0,2 and 2,4 mg/L (Cl), -100 % and -15% (D) and -14 % and -3 %: (18O). The respective averages are 1 mg/L, -6,8 % and -42,8 %. The obtained values are in good agreement with global estimates (for the isotopes), and with previous measurements in adjacentor nearby areas (for the three species). The great variability shown by the data of the three species is mainly caused by: a) the effect of temperature, both seasonally or altitudinally induced (the gradients for the isotopes are typical values), and b) the different procedence of the vapour masses which produce the precipitations over the area, as is also shown by the dispersion in the deuterium excess values.
