SGER: The Isotopic Signature of Tropical Storm Mitch on Groundwater in Yucatan Mexico

[9902971]这个提案是为两个人申请资金，让他们在热带风暴米奇过后前往墨西哥的尤卡坦半岛收集水样。那场风暴直接从我研究地下水地球化学和水文地质学好几年的地区上空掠过。将对收集的样品进行氧和氢的同位素组成分析，并将结果与1996年和（大部分）1997年收集的样品的测量结果进行比较（Perry et al, 1997）。本研究的主要目的是比较深层和浅层地下水样品的同位素组成。尽可能多的采样点将是以前采样过的地方（表1和图1），以便有一个比较风暴后观测结果的基础。重要的是，在暴风雨过后，在含水层内进行混合之前，尽快收集这些样品。

9902971PerryThis proposal is a request for funds for two people to travel to Yucatan, Mexico to collect water samples in the wake of Tropical Storm Mitch. That storm passed directly over the area in which I have been studying groundwater geochemistry and hydrogeology for several years. The samples collected will be analyzed for their isotopic composition of oxygen and hydrogen, and the results will be compared with measurements on samples collected in 1996 and (mostly) in 1997 (Perry et al, 1997). The principal objective of this study is to compare the isotopic composition of pairs of deep and shallow groundwater samples. As many sampling sites as possible will be localities that have been sampled previously (Table I and Fig.1) in order to have a basis with which to compare post-storm observations. It is important that these samples be collected as soon as possible after the storm, before mixing can take place within the aquifer.