ANALYTICAL STUDIES OF GROUNDWATER-HEAD FLUCTUATION IN A COASTAL CONFINED AQUIFER OVERLAIN BY A SEMI-PERMEABLE LAYER WITH STORAGE
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dc.contributor.author | Li H. | |
dc.contributor.author | Jiao J.J. | |
dc.date.accessioned | 2021-02-11T06:56:23Z | |
dc.date.available | 2021-02-11T06:56:23Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=558216 | |
dc.identifier.citation | Advances in Water Resources, 2001, 24, 5, 565-573 | |
dc.identifier.issn | 0309-1708 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/24637 | |
dc.description.abstract | Analytical studies are carried out to investigate groundwater-head changes in a coastal aquifer system in response to tidal fluctuations. The system consists of an unconfined aquifer, a semi-confined aquifer and a semi-permeable confining unit between them. An exact analytical solution is derived to investigate the influences of both leakage and storage of the semi-permeable layer on the tide-induced groundwater-head fluctuation in the semi-confined aquifer. This solution is a generalization of the solution obtained by Jiao and Tang (Water Resource Research 35 (1999) 747-751) which ignored the storage of the semi-confining unit. The analytical solution indicates that both storage and leakage of the semi-permeable layer play an important role in the groundwater-head fluctuation in the confined aquifer. While leakage is generally more important than storage, the impact of storage on groundwater-head fluctuations changes with leakage. With the increase of leakage the fluctuation of groundwater-head in the confined aquifer will be controlled mainly by leakage. The study also demonstrates that the influence of storativity of the semi-permeable layer on groundwater-head fluctuation is negligible only when the storativity of the semi-permeable layer is comparable to or smaller than that of the confined aquifer. However, for aquifer systems with semi-permeable layer composed of thick, soft sedimentary materials, the storativity of the semi-permeable layer is usually much greater than that of the aquifer and its influence should be considered. | |
dc.title | ANALYTICAL STUDIES OF GROUNDWATER-HEAD FLUCTUATION IN A COASTAL CONFINED AQUIFER OVERLAIN BY A SEMI-PERMEABLE LAYER WITH STORAGE | |
dc.type | Статья |
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