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This book deals with the role of changing groundwater base level on the adjacent hydrological systems. It summarizes, compiles and compares results of current and paleo base levels, using examples from all over the world.

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The proposed book deals with the role of changing groundwater base level on the adjacent hydrological systems. It summarizes, compiles and compares results of current and paleo base levels, using examples from all over the world.
A classification is given for marine or continental groundwater base levels with special attention to those below sea level. The factors controlling base level changes and the methods for their determination are elaborated. Holocene and future changes are discussed with their effect on salinization and flushing mechanisms of groundwater. All topics described in the book are accompanied by examples and references from all over the world.

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The Main Types of Groundwater Base-Level.- Factors Controlling Base-Level Elevation Changes.- Methods and Techniques to Define Base-Level Elevation and to Measure and Assess the Effect of Their Variation on Adjoining Groundwater Systems.- Capturing of Groundwater Basins and Shifts of Divides.- Salinity, Salination and Freshening of the Different Base-Levels and Their Adjoining Groundwater Systems.- Paleo, Current and Future Marine Base-Levels.- Characteristics of Current Continental Endorheic Base-Levels.- Current Continental Base-Levels Above Sea Level.- Current Continental Base-Levels Below Sea Level and Distant from the Sea.- Current Continental Base-Levels Below Sea Level, Located Close to the Sea.

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