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Intertidal and submarine groundwater discharge on the west coast of Ireland

机译:爱尔兰西海岸的潮间带和海底地下水排放

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摘要

Submarine Groundwater Discharge is now a phenomenon of global interest, as studies show that it represents both a significant proportion of the fresh water input to the ocean, and a significant contribution to the loads of many substances. At present, little monitoring of groundwater in Ireland is carried out at its point of entry to seawater, and consequently the volumes of fresh water, and the loads of nutrients and contaminants being carried into Irish coastal waters by submarine and intertidal groundwater discharge (SiGD), are unknown. SiGD is the principal source of fresh water entering Irish coastal waters between the major west coast estuaries of the Corrib and the Shannon. Calculations of the volume of submarine SiGD delivered to southern Galway bay in winter indicate it equals 10-25% of the discharge of the R. Corrib, and that its nutrient load may be of the same order of magnitude as that from the R. Corrib. This coastal karst area includes important commercial shellfish waters, which may be strongly impacted by SiGD.
机译:海底地下水排放现在已成为全球关注的现象,因为研究表明,海底地下水排放不仅占向海洋输入的淡水的很大一部分,而且对许多物质的负荷都有重要贡献。目前,在爱尔兰进入海水时,很少对地下水进行监测,因此,淡水的量以及海底和潮间带地下水排放(SiGD)将大量的养分和污染物带入爱尔兰沿海水域,是未知的。 SiGD是进入Corrib和Shannon主要西海岸河口之间的爱尔兰沿海水域的主要淡水来源。对冬季在冬季输送到戈尔韦湾南部的SiGD潜水艇的容量进行的计算表明,它等于R. Corrib的排放量的10%至25%,并且其养分负荷可能与R. Corrib的养分负荷相同。这个沿海喀斯特地区包括重要的商业贝类水域,这可能会受到SiGD的强烈影响。

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