Groundwater Rise Modeled Areas

This map shows the model domains for the analyses of groundwater rise, groundwater depth, and vulnerable areas. The first model constructed was the NH Seacoast model. This model originated from the USGS Groundwater Model constructed by Thomas Mack (Mack, 2009). We modified the model to simulate groundwater rise caused by SLR (Knott et al., 2019). For this project, the model was converted to MODFLOW-USG and updated to be consistent with the other models. Converting it to a saltwater intrusion model was beyond this project's scope, consequently, saltwater intrusion was not simulated in this model domain. The "Dover_Plus & Durham" model domain includes the coastal areas of Rollinsford, Dover, Madbury, and Durham. A new groundwater model with SWI was constructed for the northern communities and was merged with the existing Durham groundwater model (Pimental et al., 2022). Another groundwater flow and SWI model was built for Newmarket, Newfields, Exeter, and part of Stratham. This is labeled "Newfields & Exeter" on the domain map. The "Portsmouth & NC" domain consists of a new groundwater flow and SWI model for Portsmouth, Newington, New Castle, and part of Rye. All models constructed for this project used the MODFLOW-USG Transport code and are capable of simulating contaminant transport in addition to GW flow in the future if needed.本地图展示了用于地下水抬升、地下水埋深以及脆弱区域分析的模型域。首个构建的模型为新罕布什尔州海岸（NH Seacoast）模型。该模型源自Thomas Mack于2009年构建的美国地质调查局地下水模型（USGS Groundwater Model）。我们对该模型进行修改，以模拟由海平面上升（Sea Level Rise, SLR）引发的地下水抬升现象（Knott等人，2019）。本项目中，该模型被转换为MODFLOW-USG格式，并进行更新以与其他模型保持一致。将该模型转换为海水入侵模型超出了本项目的研究范围，因此在此模型域中未模拟海水入侵过程。"Dover_Plus & Durham"模型域涵盖罗林斯福德、多佛、马德伯里以及达勒姆的沿海区域。针对北部社区，我们构建了一款带有海水入侵（Saltwater Intrusion, SWI）功能的新型地下水模型，并将其与现有的达勒姆地下水模型相融合（Pimental等人，2022）。针对纽马基特、纽菲尔德、埃克塞特以及斯特瑟姆的部分区域，我们还构建了另一款地下水水流与海水入侵模型，该模型在域地图上被标记为"Newfields & Exeter"。"Portsmouth & NC"域包含针对朴茨茅斯、纽因顿、纽卡斯尔以及莱伊部分区域的新型地下水水流与海水入侵模型。本项目中构建的所有模型均采用MODFLOW-USG Transport代码编写，未来若有需要，除模拟地下水（Groundwater, GW）水流外，还可用于模拟污染物运移过程。