Glossary of Karst and Cave Terms
Based on "A Lexicon of Cave and Karst Terminology with Special to Environmental Karst Hydrology" EPA/600/R-02/003, 2002, EPA: Washington, DC., Speleogenesis Glossary includes 2699 cave & karst terms
1. The vertical distance the water elevation is lowered or the reduction of the pressure head due to the removal of water . 2. The decline in potentiometric surface at a point caused by the withdrawal of water from a hydrogeologic unit .