Temperature of artificial freshwater recharge significantly affects salinity distributions in coastal confined aquifers

Artificial freshwater recharge is commonly used to mitigate seawater intrusion and restore salinized aquifers in coastal zones. While the temperature of recharged often differs from that aquifers, effects differences on water flow salinity distributions are rarely examined. Based laboratory experiments numerical simulations, we found response distribution cold prolonged. Cold performs better compared with hot mitigating confined aquifers. Hot induces a marked overshoot distribution: Seawater retreats first but intrudes back until steady state.