What is meant by inverted water table? There are some papers in literature which discuss stream-aquifer interaction. They describe that the stream aquifer interaction ranges from connection to disconnection. When there is disconnection, then there is an $\textbf{inverted water table} $ below the stream and above saturated zone. I have not understood what is meant by this kind of water table?
An Inverted or Perched water table is a water table that is above the main or regional water table in an  unconfined aquifer.  The perched water table is generally above a layer of low permeability material such as clay.  In the image below, notice that there is an "inverted" water table along bottom of the perched water table.