Investigating sea-level change on the coastal aquifer, case study: Jafakendeh aquifer

Abstract

Do the sea-level changes affect the quantity and quality of groundwater on the coastal Jafakendeh aquifer? More than half of the world's population now lives near the coastline. Surface water in the coastal basin and the island interacts with adjacent groundwater. This interaction affects the quantity and quality of water in surface and subsurface waters. In this study, the relationship between the Jafakendeh aquifer and groundwater of the Caspian Sea in northern Iran has been investigated. Therefore, this study aimed to examine the trend, changes in surface groundwater level, and groundwater quality variables of the groundwater aquifer by the Mann–Kendall nonparametric method and detect point change by the Pettitt method. Four piezometer wells were measured, where is only one piezometer located at the artificial recharge site and piezometer one near the Caspian Sea. In the present study, the statistics were used to find a sudden change in groundwater data quantity and quality. The analysis shows that sea-level changes and wells near the sea do not affect the amount and quality of coastal aquifer and adjacent wells' significance.