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首页> 外文期刊>Hydrogeology journal >Assessing the impacts of sea-level rise and precipitation change on the surficial aquifer in the low-lying coastal alluvial plains and barrier islands, east-central Florida (USA)
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Assessing the impacts of sea-level rise and precipitation change on the surficial aquifer in the low-lying coastal alluvial plains and barrier islands, east-central Florida (USA)

机译:评估海平面上升和降水变化对低洼沿海冲积平原和障碍岛(美国佛罗里达州中东部)的表层含水层的影响

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摘要

A three-dimensional variable-density groundwater flow and salinity transport model is implemented using the SEAWAT code to quantify the spatial variation of water-table depth and salinity of the surficial aquifer in Merritt Island and Cape Canaveral Island in east-central Florida (USA) under steady-state 2010 hydrologic and hydrogeologic conditions. The developed model is referred to as the 'reference' model and calibrated against field-measured groundwater levels and a map of land use and land cover. Then, five prediction/projection models are developed based on modification of the boundary conditions of the calibrated 'reference' model to quantify climate change impacts under various scenarios of sea-level rise and precipitation change projected to 2050. Model results indicate that west Merritt Island will encounter lowland inundation and saltwater intrusion due to its low elevation and flat topography, while climate change impacts on Cape Canaveral Island and east Merritt Island are not significant. The SEAWAT models developed for this study are useful and effective tools for water resources management, land use planning, and climate-change adaptation decision-making in these and other low-lying coastal alluvial plains and barrier island systems.
机译:使用SEAWAT代码实现了三维可变密度地下水流和盐分迁移模型,以量化佛罗里达州中东部(美国)的梅里特岛和卡纳维拉尔角岛的表层含水层水位深度和盐分的空间变化在2010年稳态水文和水文地质条件下。所开发的模型被称为“参考”模型,并根据现场测量的地下水位以及土地利用和土地覆盖图进行了校准。然后,基于修改的“参考”模型的边界条件,开发了五个预测/投影模型,以量化预计到2050年海平面上升和降水变化的各种情景下的气候变化影响。模型结果表明,西部梅里特岛低海拔和平坦的地形将使低地淹没和盐水入侵,而气候变化对卡纳维拉尔角岛和东部梅里特岛的影响不大。为这项研究开发的SEAWAT模型对于这些以及其他低洼的沿海冲积平原和障碍岛系统中的水资源管理,土地利用规划和气候变化适应决策,是有用而有效的工具。

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