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首页> 外文会议>International Symposium on Advances in Isotope Hydrology and its Role in Sustainable Water Resources Management >RAINWATER TRACING USING THE STABLE ISOTOPE IN THE WESTERN MEDITERRANEAN (CASE OF RIF CHAIN IN THE NORTH OF MOROCCO)
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RAINWATER TRACING USING THE STABLE ISOTOPE IN THE WESTERN MEDITERRANEAN (CASE OF RIF CHAIN IN THE NORTH OF MOROCCO)

机译：地中海西部地中海稳定同位素的雨水追踪（摩洛哥北部RIF链）

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摘要

Nine meteorological stations, distributed between 3 and 996 m of altitude, havebeen used as basis of an isotopic study of rainwater carried out in the Rif Chain (Northernpart of Morocco) during the hydrological cycles 2004 to 2006. This study allowed us toexamine the isotopic variations during the year and to define the relationship between18 O and 2 H. The altitudinal gradient established for 18 O is: δ = –0.27‰ per 100 m.We have also used the relationship between emergence points altitudes of somestudied springs and their 18 O contents to calculate the regional 18 O gradient. Theselected springs are supposed to have nearest emergence altitudes to the ones of theneighbouring mountains. The 18 O content variation in the springs corresponds to analtitudinal gradient: δ = –0.27‰ per 100 m. It is remarkable to note that this gradient isidentical to that of the rainwater. Even if this isotopic study is reduced in time, it seemsto be sustainable to establish a correct regional meteoric line at least of the slope. Theconstant difference related to the regression (4.25 in groundwater and 4.87 in rainwater)has to be discussed. Before having a demonstrated value, we will use the gradient andthe origin ordinate determined from springs, gradient that takes into account the rainsevaporation before their infiltration.
机译：九个气象站，在海拔3到996米之间分布，随着在2004年至2006年的水文循环期间在水文循环中进行的RIF链（摩洛哥Northernpart）的雨水的同位素研究的基础。本研究允许我们宣传同位素变异在年内并定义18 o和2小时之间的关系。建立的18 o的高度梯度是：Δ= -0.27‰每100米。我们也使用了定期泉水的出现点和其18 o内容之间的出现点之间的关系计算区域18 o梯度。 Cheseled Springs应该对当时的山脉最近的出现高度。弹簧中的18个含量变化对应于分析梯度：δ= -0.27‰/ 100米。值得注意的是，这种梯度是雨水的梯度。即使这种同位素研究及时降低，它也可持续，以便至少在坡度中建立正确的区域陨石线。必须讨论与回归（4.25在地下水和4.87中）相关的差异差异。在具有展示的价值之前，我们将使用从Springs确定的梯度和原点纵坐标，在渗透前考虑雨水的渐变。

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